Signed-off-by: Matt Bruce <mbrucedogs@gmail.com>

Blackjack/Engine/BlackjackEngine.swift

@@ -20,6 +20,9 @@ final class BlackjackEngine {
     /// Settings reference for rule variations.
     private let settings: GameSettings
     
+    /// Running count for card counting (Hi-Lo system).
+    private(set) var runningCount: Int = 0
+    
     /// Number of decks in the shoe (reads from current settings).
     var deckCount: Int {
         settings.deckCount.rawValue
@@ -30,10 +33,45 @@ final class BlackjackEngine {
         shoe.cardsRemaining
     }
     
-    /// Whether the shoe needs reshuffling (below 25% remaining).
+    /// True count (running count / decks remaining).
+    var trueCount: Double {
+        let decksRemaining = max(1.0, Double(cardsRemaining) / 52.0)
+        return Double(runningCount) / decksRemaining
+    }
+    
+    /// Minimum cards needed to safely complete a hand.
+    /// Need ~10 cards worst case (player splits once, both hit twice, dealer hits twice).
+    private let minimumCardsForHand: Int = 10
+    
+    /// The cut card position (cards to deal before reshuffling).
+    /// Set during reshuffle with slight random variation for realism.
+    private var cutCardPosition: Int = 0
+    
+    /// Realistic default penetration based on deck count.
+    /// These match typical casino practices.
+    private var defaultPenetration: Double {
+        switch deckCount {
+        case 1: return 0.60    // 60% - common for single-deck (hand-held)
+        case 2: return 0.70    // 70% - typical double-deck pitch game
+        default: return 0.75  // 75% - standard for 4-8 deck shoe
+        }
+    }
+    
+    /// Whether the shoe needs reshuffling (hit cut card position).
     var needsReshuffle: Bool {
-        let threshold = (52 * deckCount) / 4
+        let cardsDealt = (52 * deckCount) - cardsRemaining
-        return cardsRemaining < threshold
+        return cardsDealt >= cutCardPosition
+    }
+    
+    /// Whether there are enough cards to start a new hand.
+    var canDealNewHand: Bool {
+        cardsRemaining >= minimumCardsForHand
+    }
+    
+    /// Current penetration percentage (how much of the shoe has been dealt).
+    var penetrationPercentage: Double {
+        let totalCards = 52 * deckCount
+        return Double(totalCards - cardsRemaining) / Double(totalCards)
     }
     
     // MARK: - Initialization
@@ -42,6 +80,10 @@ final class BlackjackEngine {
         self.settings = settings
         self.shoe = Deck(deckCount: settings.deckCount.rawValue)
         shoe.shuffle()
+        
+        // Set initial cut card position
+        let totalCards = 52 * settings.deckCount.rawValue
+        cutCardPosition = Int(Double(totalCards) * defaultPenetration)
     }
     
     // MARK: - Shoe Management
@@ -50,11 +92,38 @@ final class BlackjackEngine {
     func reshuffle() {
         shoe = Deck(deckCount: settings.deckCount.rawValue)
         shoe.shuffle()
+        runningCount = 0
+        
+        // Calculate cut card position with slight random variation (±5%) for realism
+        let totalCards = 52 * deckCount
+        let basePenetration = defaultPenetration
+        let variation = Double.random(in: 0.95...1.05)
+        let cardsToDeal = Int(Double(totalCards) * basePenetration * variation)
+        
+        // Clamp between 50% and 85% penetration
+        let minCards = Int(Double(totalCards) * 0.50)
+        let maxCards = Int(Double(totalCards) * 0.85)
+        cutCardPosition = max(min(cardsToDeal, maxCards), minCards)
     }
     
-    /// Deals a single card from the shoe.
+    /// Deals a single card from the shoe and updates the running count.
+    /// If the shoe is empty, automatically reshuffles and deals.
     func dealCard() -> Card? {
-        shoe.draw()
+        // Emergency reshuffle if shoe is empty (should rarely happen)
+        if cardsRemaining == 0 {
+            reshuffle()
+        }
+        
+        guard let card = shoe.draw() else { return nil }
+        runningCount += card.hiLoValue
+        return card
+    }
+    
+    // MARK: - Card Counting
+    
+    /// Updates the running count when a card is revealed (e.g., dealer hole card).
+    func updateCount(for card: Card) {
+        runningCount += card.hiLoValue
     }
     
     // MARK: - Hand Evaluation
@@ -179,70 +248,256 @@ final class BlackjackEngine {
     
     // MARK: - Basic Strategy Hint
     
-    /// Returns the basic strategy recommendation.
+    /// Returns the basic strategy recommendation based on BJA chart.
+    /// Accounts for game settings (surrender, dealer hits soft 17, etc.)
     func getHint(playerHand: BlackjackHand, dealerUpCard: Card) -> String {
         let playerValue = playerHand.value
         let dealerValue = dealerUpCard.blackjackValue
         let isSoft = playerHand.isSoft
         let canDouble = playerHand.cards.count == 2
+        let surrenderAvailable = settings.lateSurrender
+        let dealerHitsS17 = settings.dealerHitsSoft17
         
-        // Pairs
+        // SURRENDER (when available) - check first
+        if surrenderAvailable && playerHand.cards.count == 2 {
+            // 16 vs 9, 10, A - Surrender
+            if playerValue == 16 && !isSoft && (dealerValue >= 9 || dealerValue == 1) {
+                return String(localized: "Surrender")
+            }
+            // 15 vs 10 - Surrender
+            if playerValue == 15 && !isSoft && dealerValue == 10 {
+                return String(localized: "Surrender")
+            }
+            // 15 vs A - Surrender (if dealer hits soft 17)
+            if playerValue == 15 && !isSoft && dealerValue == 1 && dealerHitsS17 {
+                return String(localized: "Surrender")
+            }
+        }
+        
+        // PAIRS
         if playerHand.canSplit {
             let pairRank = playerHand.cards[0].rank
             switch pairRank {
-            case .ace, .eight:
+            case .ace:
+                return String(localized: "Split")
+            case .eight:
                 return String(localized: "Split")
             case .ten, .jack, .queen, .king:
                 return String(localized: "Stand")
             case .five:
-                return canDouble ? String(localized: "Double") : String(localized: "Hit")
+                // Never split 5s - treat as hard 10
+                return (canDouble && dealerValue <= 9) ? String(localized: "Double") : String(localized: "Hit")
             case .four:
-                return (dealerValue == 5 || dealerValue == 6) ? String(localized: "Split") : String(localized: "Hit")
+                // Split 4s vs 5-6 (if DAS), otherwise hit
-            case .two, .three, .seven:
+                return (settings.doubleAfterSplit && (dealerValue == 5 || dealerValue == 6)) 
-                return dealerValue <= 7 ? String(localized: "Split") : String(localized: "Hit")
+                    ? String(localized: "Split") : String(localized: "Hit")
+            case .two, .three:
+                // Split 2s/3s vs 2-7
+                return dealerValue >= 2 && dealerValue <= 7 ? String(localized: "Split") : String(localized: "Hit")
             case .six:
-                return dealerValue <= 6 ? String(localized: "Split") : String(localized: "Hit")
+                // Split 6s vs 2-6
+                return dealerValue >= 2 && dealerValue <= 6 ? String(localized: "Split") : String(localized: "Hit")
+            case .seven:
+                // Split 7s vs 2-7
+                return dealerValue >= 2 && dealerValue <= 7 ? String(localized: "Split") : String(localized: "Hit")
             case .nine:
-                return (dealerValue == 7 || dealerValue >= 10) ? String(localized: "Stand") : String(localized: "Split")
+                // Split 9s vs 2-6, 8-9. Stand vs 7, 10, A
+                if dealerValue == 7 || dealerValue == 10 || dealerValue == 1 {
+                    return String(localized: "Stand")
+                }
+                return String(localized: "Split")
             }
         }
         
-        // Soft hands
+        // SOFT HANDS (Ace counted as 11)
         if isSoft {
-            if playerValue >= 19 {
+            switch playerValue {
+            case 20, 21:  // A,9 or A,10
                 return String(localized: "Stand")
-            }
+            case 19:  // A,8
-            if playerValue == 18 {
+                // Double vs 6 if dealer hits S17, otherwise stand
-                if dealerValue >= 9 {
+                if canDouble && dealerValue == 6 && dealerHitsS17 {
-                    return String(localized: "Hit")
+                    return String(localized: "Double")
                 }
                 return String(localized: "Stand")
+            case 18:  // A,7
+                // Double vs 3-6, Stand vs 2/7/8, Hit vs 9/10/A
+                if canDouble && dealerValue >= 3 && dealerValue <= 6 {
+                    return String(localized: "Double")
+                }
+                if dealerValue == 2 || dealerValue == 7 || dealerValue == 8 {
+                    return String(localized: "Stand")
                 }
-            // Soft 17 or less
                 return String(localized: "Hit")
+            case 17:  // A,6
+                // Double vs 3-6, otherwise hit
+                if canDouble && dealerValue >= 3 && dealerValue <= 6 {
+                    return String(localized: "Double")
+                }
+                return String(localized: "Hit")
+            case 16, 15:  // A,5 or A,4
+                // Double vs 4-6, otherwise hit
+                if canDouble && dealerValue >= 4 && dealerValue <= 6 {
+                    return String(localized: "Double")
+                }
+                return String(localized: "Hit")
+            case 14, 13:  // A,3 or A,2
+                // Double vs 5-6, otherwise hit
+                if canDouble && dealerValue >= 5 && dealerValue <= 6 {
+                    return String(localized: "Double")
+                }
+                return String(localized: "Hit")
+            default:
+                return String(localized: "Hit")
+            }
         }
         
-        // Hard hands
+        // HARD HANDS
-        if playerValue >= 17 {
+        switch playerValue {
+        case 17...21:
             return String(localized: "Stand")
-        }
+        case 16:
-        if playerValue >= 13 && dealerValue <= 6 {
+            // Stand vs 2-6, Hit vs 7+
-            return String(localized: "Stand")
+            return dealerValue >= 2 && dealerValue <= 6 ? String(localized: "Stand") : String(localized: "Hit")
-        }
+        case 15:
-        if playerValue == 12 && dealerValue >= 4 && dealerValue <= 6 {
+            // Stand vs 2-6, Hit vs 7+
-            return String(localized: "Stand")
+            return dealerValue >= 2 && dealerValue <= 6 ? String(localized: "Stand") : String(localized: "Hit")
-        }
+        case 14:
-        if playerValue == 11 && canDouble {
+            // Stand vs 2-6, Hit vs 7+
+            return dealerValue >= 2 && dealerValue <= 6 ? String(localized: "Stand") : String(localized: "Hit")
+        case 13:
+            // Stand vs 2-6, Hit vs 7+
+            return dealerValue >= 2 && dealerValue <= 6 ? String(localized: "Stand") : String(localized: "Hit")
+        case 12:
+            // Stand vs 4-6, Hit vs 2-3 and 7+
+            return dealerValue >= 4 && dealerValue <= 6 ? String(localized: "Stand") : String(localized: "Hit")
+        case 11:
+            // Always double (except vs A in some rules)
+            if canDouble {
                 return String(localized: "Double")
             }
-        if playerValue == 10 && dealerValue <= 9 && canDouble {
+            return String(localized: "Hit")
+        case 10:
+            // Double vs 2-9, Hit vs 10/A
+            if canDouble && dealerValue >= 2 && dealerValue <= 9 {
                 return String(localized: "Double")
             }
-        if playerValue == 9 && dealerValue >= 3 && dealerValue <= 6 && canDouble {
+            return String(localized: "Hit")
+        case 9:
+            // Double vs 3-6, Hit otherwise
+            if canDouble && dealerValue >= 3 && dealerValue <= 6 {
                 return String(localized: "Double")
             }
+            return String(localized: "Hit")
+        default:  // 8 or less
+            return String(localized: "Hit")
+        }
+    }
     
-        return String(localized: "Hit")
+    /// Returns the count-adjusted strategy recommendation with deviation explanation.
+    /// Based on the "Illustrious 18" - the most valuable count-based deviations.
+    func getCountAdjustedHint(playerHand: BlackjackHand, dealerUpCard: Card) -> String {
+        let basicHint = getHint(playerHand: playerHand, dealerUpCard: dealerUpCard)
+        let tc = Int(trueCount.rounded())
+        let playerValue = playerHand.value
+        let dealerValue = dealerUpCard.blackjackValue
+        let isSoft = playerHand.isSoft
+        
+        // Check for count-based deviations from basic strategy
+        
+        // 16 vs 10: Stand at TC 0+ (basic says Hit)
+        if playerValue == 16 && !isSoft && dealerValue == 10 {
+            if tc >= 0 {
+                return String(localized: "Stand (Count: 16v10 at TC≥0)")
+            }
+        }
+        
+        // 15 vs 10: Stand at TC +4+ (basic says Hit)
+        if playerValue == 15 && !isSoft && dealerValue == 10 {
+            if tc >= 4 {
+                return String(localized: "Stand (Count: 15v10 at TC≥+4)")
+            }
+        }
+        
+        // 12 vs 2: Stand at TC +3+ (basic says Hit)
+        if playerValue == 12 && !isSoft && dealerValue == 2 {
+            if tc >= 3 {
+                return String(localized: "Stand (Count: 12v2 at TC≥+3)")
+            }
+        }
+        
+        // 12 vs 3: Stand at TC +2+ (basic says Hit)
+        if playerValue == 12 && !isSoft && dealerValue == 3 {
+            if tc >= 2 {
+                return String(localized: "Stand (Count: 12v3 at TC≥+2)")
+            }
+        }
+        
+        // 12 vs 4: Hit at TC < 0 (basic says Stand)
+        if playerValue == 12 && !isSoft && dealerValue == 4 {
+            if tc < 0 {
+                return String(localized: "Hit (Count: 12v4 at TC<0)")
+            }
+        }
+        
+        // 13 vs 2: Hit at TC < -1 (basic says Stand)
+        if playerValue == 13 && !isSoft && dealerValue == 2 {
+            if tc < -1 {
+                return String(localized: "Hit (Count: 13v2 at TC<-1)")
+            }
+        }
+        
+        // 16 vs 9: Stand at TC +5+ (basic says Hit)
+        if playerValue == 16 && !isSoft && dealerValue == 9 {
+            if tc >= 5 {
+                return String(localized: "Stand (Count: 16v9 at TC≥+5)")
+            }
+        }
+        
+        // 10 vs 10: Double at TC +4+ (basic says Hit)
+        if playerValue == 10 && !isSoft && playerHand.cards.count == 2 && dealerValue == 10 {
+            if tc >= 4 {
+                return String(localized: "Double (Count: 10v10 at TC≥+4)")
+            }
+        }
+        
+        // 10 vs A: Double at TC +4+ (basic says Hit)
+        if playerValue == 10 && !isSoft && playerHand.cards.count == 2 && dealerValue == 1 {
+            if tc >= 4 {
+                return String(localized: "Double (Count: 10vA at TC≥+4)")
+            }
+        }
+        
+        // 9 vs 2: Double at TC +1+ (basic says Hit)
+        if playerValue == 9 && !isSoft && playerHand.cards.count == 2 && dealerValue == 2 {
+            if tc >= 1 {
+                return String(localized: "Double (Count: 9v2 at TC≥+1)")
+            }
+        }
+        
+        // 9 vs 7: Double at TC +3+ (basic says Hit)
+        if playerValue == 9 && !isSoft && playerHand.cards.count == 2 && dealerValue == 7 {
+            if tc >= 3 {
+                return String(localized: "Double (Count: 9v7 at TC≥+3)")
+            }
+        }
+        
+        // Pair of 10s vs 5: Split at TC +5+ (basic says Stand)
+        if playerHand.canSplit && playerHand.cards[0].blackjackValue == 10 && dealerValue == 5 {
+            if tc >= 5 {
+                return String(localized: "Split (Count: 10,10v5 at TC≥+5)")
+            }
+        }
+        
+        // Pair of 10s vs 6: Split at TC +4+ (basic says Stand)
+        if playerHand.canSplit && playerHand.cards[0].blackjackValue == 10 && dealerValue == 6 {
+            if tc >= 4 {
+                return String(localized: "Split (Count: 10,10v6 at TC≥+4)")
+            }
+        }
+        
+        // No deviation applies, return basic strategy
+        return basicHint
     }
 }
 

Blackjack/Engine/GameState.swift

@@ -36,6 +36,9 @@ final class GameState {
     /// Insurance bet amount.
     var insuranceBet: Int = 0
     
+    /// Whether a reshuffle notification should be shown.
+    var showReshuffleNotification: Bool = false
+    
     // MARK: - Hands
     
     /// Player's hands (can have multiple after splits).
@@ -265,6 +268,17 @@ final class GameState {
     func deal() async {
         guard canDeal else { return }
         
+        // Ensure enough cards for a full hand - reshuffle if needed
+        if !engine.canDealNewHand {
+            engine.reshuffle()
+            showReshuffleNotification = true
+            
+            Task {
+                try? await Task.sleep(for: .seconds(2))
+                showReshuffleNotification = false
+            }
+        }
+        
         currentPhase = .dealing
         playerHands = [BlackjackHand(bet: currentBet)]
         dealerHand = BlackjackHand()
@@ -645,6 +659,13 @@ final class GameState {
         // Check if shoe needs reshuffling
         if engine.needsReshuffle {
             engine.reshuffle()
+            showReshuffleNotification = true
+            
+            // Auto-dismiss after a delay
+            Task {
+                try? await Task.sleep(for: .seconds(2))
+                showReshuffleNotification = false
+            }
         }
     }
     

Blackjack/Models/GameSettings.swift

@@ -143,6 +143,9 @@ final class GameSettings {
     /// Whether to show dealer hints (suggested action).
     var showHints: Bool = true { didSet { save() } }
     
+    /// Whether to show the running card count (Hi-Lo system).
+    var showCardCount: Bool = false { didSet { save() } }
+    
     // MARK: - Sound Settings
     
     /// Whether sound effects are enabled.
@@ -234,6 +237,7 @@ final class GameSettings {
         self.showCardsRemaining = data.showCardsRemaining
         self.showHistory = data.showHistory
         self.showHints = data.showHints
+        self.showCardCount = data.showCardCount
         self.soundEnabled = data.soundEnabled
         self.hapticsEnabled = data.hapticsEnabled
         self.soundVolume = data.soundVolume
@@ -258,6 +262,7 @@ final class GameSettings {
             showCardsRemaining: showCardsRemaining,
             showHistory: showHistory,
             showHints: showHints,
+            showCardCount: showCardCount,
             soundEnabled: soundEnabled,
             hapticsEnabled: hapticsEnabled,
             soundVolume: soundVolume

Blackjack/Models/Hand.swift

@@ -131,5 +131,29 @@ extension Card {
         case .ten, .jack, .queen, .king: return 10
         }
     }
+    
+    /// The Hi-Lo card counting value.
+    /// Low cards (2-6): +1 (good for player when removed)
+    /// Neutral (7-9): 0
+    /// High cards (10-A): -1 (bad for player when removed)
+    var hiLoValue: Int {
+        switch rank {
+        case .two, .three, .four, .five, .six:
+            return 1  // Low cards
+        case .seven, .eight, .nine:
+            return 0  // Neutral
+        case .ten, .jack, .queen, .king, .ace:
+            return -1 // High cards
+        }
+    }
+    
+    /// Display text for the Hi-Lo count value.
+    var hiLoDisplayText: String {
+        switch hiLoValue {
+        case 1: return "+1"
+        case -1: return "-1"
+        default: return "0"
+        }
+    }
 }
 

Blackjack/Resources/Localizable.xcstrings

@@ -1,6 +1,10 @@
 {
   "sourceLanguage" : "en",
   "strings" : {
+    "%@" : {
+      "comment" : "A label displaying the current true count for a card counting practice session. The argument is the true count, formatted to one decimal place.",
+      "isCommentAutoGenerated" : true
+    },
     "%lld" : {
       "comment" : "A label displaying the amount wagered in the current hand. The argument is the amount wagered in the current hand.",
       "isCommentAutoGenerated" : true
@@ -39,11 +43,41 @@
       "comment" : "A step in the process of exporting app icons.",
       "isCommentAutoGenerated" : true
     },
+    "+%@" : {
+      "comment" : "A label showing the true count for card counting. The number is formatted to one decimal place.",
+      "isCommentAutoGenerated" : true
+    },
+    "+%lld" : {
+      "comment" : "A label that displays the running count of cards in a Hi-Lo card counting practice session. The text inside the label changes color based on whether the count is positive or negative.",
+      "isCommentAutoGenerated" : true
+    },
     "1 Deck: Lowest house edge (~0.17%), rare to find." : {
 
     },
     "2 Decks: Low house edge (~0.35%), common online." : {
 
+    },
+    "2-6: +1 (low cards favor house)" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "2-6: +1 (low cards favor house)"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "2-6: +1 (cartas bajas favorecen la casa)"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "2-6: +1 (les cartes basses favorisent la maison)"
+          }
+        }
+      }
     },
     "2-10: Face value" : {
       "comment" : "Description of the card values for cards with values 2 through 10.",
@@ -60,12 +94,56 @@
     },
     "6:5 Blackjack (avoid!): Increases house edge by ~1.4%." : {
 
+    },
+    "7-9: 0 (neutral cards)" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "7-9: 0 (neutral cards)"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "7-9: 0 (cartas neutrales)"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "7-9: 0 (cartes neutres)"
+          }
+        }
+      }
     },
     "8 decks shuffled together." : {
 
     },
     "8 Decks: Standard in Atlantic City (~0.55%)." : {
 
+    },
+    "10-A: -1 (high cards favor player)" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "10-A: -1 (high cards favor player)"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "10-A: -1 (cartas altas favorecen al jugador)"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "10-A: -1 (les cartes hautes favorisent le joueur)"
+          }
+        }
+      }
     },
     "A 'soft' hand has an Ace counting as 11." : {
       "comment" : "Explanation of how an Ace can be counted as either 1 or 11 in a hand.",
@@ -217,7 +295,26 @@
       }
     },
     "Basic Strategy" : {
-
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Basic Strategy"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Estrategia Básica"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Stratégie de Base"
+          }
+        }
+      }
     },
     "Basic strategy suggestions" : {
       "localizations" : {
@@ -267,6 +364,42 @@
         }
       }
     },
+    "Bet 2x minimum" : {
+      "comment" : "Betting recommendation based on a true count of 1.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet 4x minimum" : {
+      "comment" : "Betting recommendation based on the true count of 4.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet 6x minimum" : {
+      "comment" : "Betting recommendation based on a true count of 3.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet 8x minimum" : {
+      "comment" : "Betting recommendation based on the true count of 4.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet maximum!" : {
+      "comment" : "Betting recommendation to bet the maximum amount when the true count is 5 or higher.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet minimum" : {
+      "comment" : "Betting recommendation to bet the minimum amount.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet minimum (neutral)" : {
+      "comment" : "Betting hint when the true count is 0.",
+      "isCommentAutoGenerated" : true
+    },
+    "Bet minimum or sit out" : {
+      "comment" : "Betting recommendation to bet the minimum amount or to sit out when the true count is -2 or lower.",
+      "isCommentAutoGenerated" : true
+    },
+    "Betting Hint" : {
+      "comment" : "A label describing the view that shows betting recommendations.",
+      "isCommentAutoGenerated" : true
+    },
     "BIGGEST SWINGS" : {
       "localizations" : {
         "en" : {
@@ -454,6 +587,50 @@
         }
       }
     },
+    "Card Count" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Card Count"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Conteo de cartas"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Compte des cartes"
+          }
+        }
+      }
+    },
+    "Card Counting" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Card Counting"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Conteo de Cartas"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Comptage des Cartes"
+          }
+        }
+      }
+    },
     "Card dealing animations" : {
       "localizations" : {
         "en" : {
@@ -571,6 +748,13 @@
     "Costs half your original bet." : {
       "comment" : "Description of the cost of insurance in the rules help view.",
       "isCommentAutoGenerated" : true
+    },
+    "Count reset to 0" : {
+      "comment" : "A description of what happens when the shoe is reshuffled in Blackjack.",
+      "isCommentAutoGenerated" : true
+    },
+    "Count resets to 0 when the shoe is shuffled." : {
+
     },
     "Custom" : {
       "localizations" : {
@@ -791,6 +975,9 @@
           }
         }
       }
+    },
+    "Decrease bets when the count is negative." : {
+
     },
     "DISPLAY" : {
       "localizations" : {
@@ -858,6 +1045,22 @@
         }
       }
     },
+    "Double (Count: 9v2 at TC≥+1)" : {
+      "comment" : "Explanation of a count-based deviation from the basic strategy, recommending to double down.",
+      "isCommentAutoGenerated" : true
+    },
+    "Double (Count: 9v7 at TC≥+3)" : {
+      "comment" : "Strategy recommendation to double down when the player has a value of 9, is soft, has two cards, and the dealer's upcard is 7, with a true count of 3 or higher.",
+      "isCommentAutoGenerated" : true
+    },
+    "Double (Count: 10v10 at TC≥+4)" : {
+      "comment" : "Explanation of a recommended Blackjack move based on a count-adjusted strategy, specifically for a pair of 10s against a 10.",
+      "isCommentAutoGenerated" : true
+    },
+    "Double (Count: 10vA at TC≥+4)" : {
+      "comment" : "Text displayed in a notification when a user should double their bet in a Blackjack game.",
+      "isCommentAutoGenerated" : true
+    },
     "Double After Split" : {
       "localizations" : {
         "en" : {
@@ -933,6 +1136,9 @@
     "Double tap to add chips" : {
       "comment" : "A hint that appears when a user taps on the betting zone, instructing them to double-tap to add chips.",
       "isCommentAutoGenerated" : true
+    },
+    "Enable 'Card Count' in Settings to practice." : {
+
     },
     "European" : {
       "localizations" : {
@@ -955,6 +1161,9 @@
           }
         }
       }
+    },
+    "Fewer decks = easier to count accurately." : {
+
     },
     "Fewer decks favor the player slightly." : {
 
@@ -1063,8 +1272,49 @@
         }
       }
     },
+    "Hi-Lo is the most popular counting system." : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Hi-Lo is the most popular counting system."
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Hi-Lo es el sistema de conteo más popular."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Hi-Lo est le système de comptage le plus populaire."
+          }
+        }
+      }
+    },
     "Higher house edge due to no hole card." : {
-
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Higher house edge due to no hole card."
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Mayor ventaja de la casa debido a la ausencia de carta oculta."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Avantage de la maison plus élevé en raison de l'absence de carte cachée."
+          }
+        }
+      }
     },
     "Hint: %@" : {
       "localizations" : {
@@ -1110,6 +1360,14 @@
         }
       }
     },
+    "Hit (Count: 12v4 at TC<0)" : {
+      "comment" : "Explanation of a Blackjack hand value and true count that leads to recommending to hit.",
+      "isCommentAutoGenerated" : true
+    },
+    "Hit (Count: 13v2 at TC<-1)" : {
+      "comment" : "Explanation of a Blackjack hand value and the recommended action based on the true count.",
+      "isCommentAutoGenerated" : true
+    },
     "Hit on soft 17 or less." : {
 
     },
@@ -1162,6 +1420,9 @@
     "If you go over 21, you 'bust' and lose immediately." : {
       "comment" : "Description of the outcome when a player's hand value exceeds 21.",
       "isCommentAutoGenerated" : true
+    },
+    "Increase bets when the count is positive." : {
+
     },
     "Insurance" : {
       "localizations" : {
@@ -1664,6 +1925,9 @@
     },
     "Poker" : {
 
+    },
+    "Positive count = more high cards remain = player advantage." : {
+
     },
     "PUSH" : {
       "localizations" : {
@@ -1795,6 +2059,35 @@
           }
         }
       }
+    },
+    "Running" : {
+      "comment" : "The text \"Running\" displayed in the card count view.",
+      "isCommentAutoGenerated" : true
+    },
+    "Running %lld, True %@" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Running %lld, True %@"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Actual %lld, Verdadero %@"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Courant %lld, Vrai %@"
+          }
+        }
+      }
+    },
+    "Running Count: Sum of all card values seen." : {
+
     },
     "SESSION SUMMARY" : {
       "localizations" : {
@@ -1840,6 +2133,18 @@
         }
       }
     },
+    "Shoe reshuffled" : {
+      "comment" : "A description of the action of reshuffling a shoe.",
+      "isCommentAutoGenerated" : true
+    },
+    "Shoe Reshuffled" : {
+      "comment" : "A title for the reshuffle notification.",
+      "isCommentAutoGenerated" : true
+    },
+    "Shoe reshuffled, count reset to zero" : {
+      "comment" : "A description of the accessibility label for the reshuffle notification view when the card count is reset.",
+      "isCommentAutoGenerated" : true
+    },
     "Show Animations" : {
       "localizations" : {
         "en" : {
@@ -1884,6 +2189,28 @@
         }
       }
     },
+    "Show Hi-Lo running count & card values" : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Show Hi-Lo running count & card values"
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Mostrar conteo Hi-Lo y valores de cartas"
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Afficher le compte Hi-Lo et les valeurs des cartes"
+          }
+        }
+      }
+    },
     "Show Hints" : {
       "localizations" : {
         "en" : {
@@ -1980,6 +2307,14 @@
         }
       }
     },
+    "Split (Count: 10,10v5 at TC≥+5)" : {
+      "comment" : "Description of a strategy recommendation to split a pair of 10s when the true count is greater than or equal to 5.",
+      "isCommentAutoGenerated" : true
+    },
+    "Split (Count: 10,10v6 at TC≥+4)" : {
+      "comment" : "Description of a count-based deviation from the basic strategy, specifically for a pair of 10s against a 6.",
+      "isCommentAutoGenerated" : true
+    },
     "Split Hand" : {
       "localizations" : {
         "en" : {
@@ -2031,6 +2366,26 @@
         }
       }
     },
+    "Stand (Count: 12v2 at TC≥+3)" : {
+      "comment" : "Explanation of a count-based deviation from the basic strategy, including the count and the recommended action.",
+      "isCommentAutoGenerated" : true
+    },
+    "Stand (Count: 12v3 at TC≥+2)" : {
+      "comment" : "Explanation of a count-adjusted strategy recommendation to stand in a 12-3 situation with a true count of 2.",
+      "isCommentAutoGenerated" : true
+    },
+    "Stand (Count: 15v10 at TC≥+4)" : {
+      "comment" : "Explanation of a count-based deviation from the basic strategy.",
+      "isCommentAutoGenerated" : true
+    },
+    "Stand (Count: 16v9 at TC≥+5)" : {
+      "comment" : "Explanation of a Blackjack game hint based on a count-adjusted strategy recommendation.",
+      "isCommentAutoGenerated" : true
+    },
+    "Stand (Count: 16v10 at TC≥0)" : {
+      "comment" : "Explanation of a count-based deviation from the basic strategy, indicating that the recommended action is to stand.",
+      "isCommentAutoGenerated" : true
+    },
     "Stand on 17+ always." : {
 
     },
@@ -2216,10 +2571,61 @@
     },
     "Traditional European casino style." : {
 
+    },
+    "True" : {
+      "comment" : "A label displayed above the true count of a card counting practice session.",
+      "isCommentAutoGenerated" : true
+    },
+    "True count of +2 or higher favors the player." : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "True count of +2 or higher favors the player."
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Cuenta verdadera de +2 o más favorece al jugador."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Un compte vrai de +2 ou plus favorise le joueur."
+          }
+        }
+      }
+    },
+    "True Count: Running count ÷ decks remaining." : {
+      "localizations" : {
+        "en" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "True Count: Running count ÷ decks remaining."
+          }
+        },
+        "es-MX" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Cuenta Verdadera: Cuenta actual ÷ mazos restantes."
+          }
+        },
+        "fr-CA" : {
+          "stringUnit" : {
+            "state" : "translated",
+            "value" : "Compte Vrai: Compte courant ÷ paquets restants."
+          }
+        }
+      }
     },
     "Upload the 1024px icon to appicon.co or makeappicon.com to generate all sizes automatically." : {
       "comment" : "A description of an alternative method for generating app icons.",
       "isCommentAutoGenerated" : true
+    },
+    "Using the Count" : {
+
     },
     "Vegas Strip" : {
       "localizations" : {

Blackjack/Storage/BlackjackGameData.swift

@@ -71,6 +71,7 @@ struct BlackjackSettingsData: PersistableGameData {
             showCardsRemaining: true,
             showHistory: true,
             showHints: true,
+            showCardCount: false,
             soundEnabled: true,
             hapticsEnabled: true,
             soundVolume: 1.0
@@ -93,6 +94,7 @@ struct BlackjackSettingsData: PersistableGameData {
     var showCardsRemaining: Bool
     var showHistory: Bool
     var showHints: Bool
+    var showCardCount: Bool
     var soundEnabled: Bool
     var hapticsEnabled: Bool
     var soundVolume: Float

Blackjack/Views/BlackjackTableView.swift

@@ -12,6 +12,9 @@ struct BlackjackTableView: View {
     @Bindable var state: GameState
     let onPlaceBet: () -> Void
     
+    /// Whether to show Hi-Lo card count values on cards.
+    var showCardCount: Bool { state.settings.showCardCount }
+    
     // MARK: - Scaled Metrics
     
     @ScaledMetric(relativeTo: .headline) private var labelFontSize: CGFloat = Design.BaseFontSize.medium
@@ -29,6 +32,7 @@ struct BlackjackTableView: View {
             DealerHandView(
                 hand: state.dealerHand,
                 showHoleCard: shouldShowDealerHoleCard,
+                showCardCount: showCardCount,
                 cardWidth: cardWidth,
                 cardSpacing: cardSpacing
             )
@@ -51,6 +55,7 @@ struct BlackjackTableView: View {
                 hands: state.playerHands,
                 activeHandIndex: state.activeHandIndex,
                 isPlayerTurn: isPlayerTurn,
+                showCardCount: showCardCount,
                 cardWidth: cardWidth,
                 cardSpacing: cardSpacing
             )
@@ -64,6 +69,12 @@ struct BlackjackTableView: View {
                     onTap: onPlaceBet
                 )
                 .transition(.scale.combined(with: .opacity))
+                
+                // Betting hint based on count (only when card counting enabled)
+                if showCardCount, let bettingHint = bettingHint {
+                    BettingHintView(hint: bettingHint, trueCount: state.engine.trueCount)
+                        .transition(.opacity)
+                }
             }
             
             // Hint (when enabled and player turn)
@@ -98,8 +109,40 @@ struct BlackjackTableView: View {
     private var currentHint: String? {
         guard let hand = state.activeHand,
               let upCard = state.dealerUpCard else { return nil }
+        
+        // Use count-adjusted hints when card counting is enabled
+        if showCardCount {
+            return state.engine.getCountAdjustedHint(playerHand: hand, dealerUpCard: upCard)
+        }
         return state.engine.getHint(playerHand: hand, dealerUpCard: upCard)
     }
+    
+    /// Betting recommendation based on the true count.
+    private var bettingHint: String? {
+        let tc = Int(state.engine.trueCount.rounded())
+        
+        // Betting spread recommendations based on true count
+        switch tc {
+        case ...(-2):
+            return String(localized: "Bet minimum or sit out")
+        case -1:
+            return String(localized: "Bet minimum")
+        case 0:
+            return String(localized: "Bet minimum (neutral)")
+        case 1:
+            return String(localized: "Bet 2x minimum")
+        case 2:
+            return String(localized: "Bet 4x minimum")
+        case 3:
+            return String(localized: "Bet 6x minimum")
+        case 4:
+            return String(localized: "Bet 8x minimum")
+        case 5...:
+            return String(localized: "Bet maximum!")
+        default:
+            return nil
+        }
+    }
 }
 
 // MARK: - Dealer Hand View
@@ -107,6 +150,7 @@ struct BlackjackTableView: View {
 struct DealerHandView: View {
     let hand: BlackjackHand
     let showHoleCard: Bool
+    let showCardCount: Bool
     let cardWidth: CGFloat
     let cardSpacing: CGFloat
     
@@ -144,6 +188,11 @@ struct DealerHandView: View {
                             isFaceUp: isFaceUp,
                             cardWidth: cardWidth
                         )
+                        .overlay(alignment: .bottomLeading) {
+                            if showCardCount && isFaceUp {
+                                HiLoCountBadge(card: hand.cards[index])
+                            }
+                        }
                         .zIndex(Double(index))
                     }
                     
@@ -204,6 +253,7 @@ struct PlayerHandsView: View {
     let hands: [BlackjackHand]
     let activeHandIndex: Int
     let isPlayerTurn: Bool
+    let showCardCount: Bool
     let cardWidth: CGFloat
     let cardSpacing: CGFloat
     
@@ -239,6 +289,7 @@ struct PlayerHandsView: View {
                 PlayerHandView(
                     hand: hands[index],
                     isActive: index == activeHandIndex && isPlayerTurn,
+                    showCardCount: showCardCount,
                     // Hand numbers: rightmost is Hand 1, leftmost is Hand 2, etc.
                     handNumber: hands.count > 1 ? hands.count - index : nil,
                     cardWidth: adaptiveCardWidth,
@@ -253,6 +304,7 @@ struct PlayerHandsView: View {
 struct PlayerHandView: View {
     let hand: BlackjackHand
     let isActive: Bool
+    let showCardCount: Bool
     let handNumber: Int?
     let cardWidth: CGFloat
     let cardSpacing: CGFloat
@@ -274,6 +326,11 @@ struct PlayerHandView: View {
                             isFaceUp: true,
                             cardWidth: cardWidth
                         )
+                        .overlay(alignment: .bottomLeading) {
+                            if showCardCount {
+                                HiLoCountBadge(card: hand.cards[index])
+                            }
+                        }
                         .zIndex(Double(index))
                     }
                 }
@@ -478,6 +535,59 @@ struct InsuranceZoneView: View {
     }
 }
 
+// MARK: - Betting Hint View
+
+/// Shows betting recommendations based on the current count.
+struct BettingHintView: View {
+    let hint: String
+    let trueCount: Double
+    
+    private var hintColor: Color {
+        let tc = Int(trueCount.rounded())
+        if tc >= 2 {
+            return .green  // Player advantage - bet more
+        } else if tc <= -1 {
+            return .red    // House advantage - bet less
+        } else {
+            return .yellow // Neutral
+        }
+    }
+    
+    private var icon: String {
+        let tc = Int(trueCount.rounded())
+        if tc >= 2 {
+            return "arrow.up.circle.fill"  // Increase bet
+        } else if tc <= -1 {
+            return "arrow.down.circle.fill" // Decrease bet
+        } else {
+            return "equal.circle.fill"      // Neutral
+        }
+    }
+    
+    var body: some View {
+        HStack(spacing: Design.Spacing.small) {
+            Image(systemName: icon)
+                .foregroundStyle(hintColor)
+            Text(hint)
+                .font(.system(size: Design.BaseFontSize.small, weight: .medium))
+                .foregroundStyle(.white.opacity(Design.Opacity.strong))
+        }
+        .padding(.horizontal, Design.Spacing.medium)
+        .padding(.vertical, Design.Spacing.small)
+        .background(
+            Capsule()
+                .fill(Color.black.opacity(Design.Opacity.light))
+                .overlay(
+                    Capsule()
+                        .strokeBorder(hintColor.opacity(Design.Opacity.medium), lineWidth: Design.LineWidth.thin)
+                )
+        )
+        .accessibilityElement(children: .ignore)
+        .accessibilityLabel(String(localized: "Betting Hint"))
+        .accessibilityValue(hint)
+    }
+}
+
 // MARK: - Hint View
 
 struct HintView: View {
@@ -500,6 +610,38 @@ struct HintView: View {
     }
 }
 
+// MARK: - Hi-Lo Count Badge
+
+/// A small badge showing the Hi-Lo counting value of a card.
+struct HiLoCountBadge: View {
+    let card: Card
+    
+    var body: some View {
+        Text(card.hiLoDisplayText)
+            .font(.system(size: Design.BaseFontSize.xxSmall, weight: .bold, design: .rounded))
+            .foregroundStyle(badgeTextColor)
+            .padding(.horizontal, Design.Spacing.xSmall)
+            .padding(.vertical, Design.Spacing.xxxSmall)
+            .background(
+                Capsule()
+                    .fill(badgeBackgroundColor)
+            )
+            .offset(x: -Design.Spacing.xSmall, y: Design.Spacing.xSmall)
+    }
+    
+    private var badgeBackgroundColor: Color {
+        switch card.hiLoValue {
+        case 1: return .green    // Low cards = positive for player
+        case -1: return .red     // High cards = negative for player
+        default: return .gray    // Neutral
+        }
+    }
+    
+    private var badgeTextColor: Color {
+        .white
+    }
+}
+
 // MARK: - Card Accessibility Extension
 
 extension Card {

Blackjack/Views/GameTableView.swift

@@ -86,6 +86,22 @@ struct GameTableView: View {
                 )
                 .frame(maxWidth: maxContentWidth)
                 
+                // Card count display (when enabled)
+                if settings.showCardCount {
+                    CardCountView(
+                        runningCount: state.engine.runningCount,
+                        trueCount: state.engine.trueCount
+                    )
+                    .frame(maxWidth: maxContentWidth)
+                }
+                
+                // Reshuffle notification
+                if state.showReshuffleNotification {
+                    ReshuffleNotificationView(showCardCount: settings.showCardCount)
+                        .frame(maxWidth: maxContentWidth)
+                        .transition(.move(edge: .top).combined(with: .opacity))
+                }
+                
                 // Table layout
                 BlackjackTableView(
                     state: state,
@@ -337,6 +353,99 @@ struct ActionButton: View {
     }
 }
 
+// MARK: - Card Count View
+
+/// Displays the Hi-Lo running count for card counting practice.
+struct CardCountView: View {
+    let runningCount: Int
+    let trueCount: Double
+    
+    var body: some View {
+        HStack(spacing: Design.Spacing.large) {
+            // Running count
+            VStack(spacing: Design.Spacing.xxSmall) {
+                Text("Running")
+                    .font(.system(size: Design.BaseFontSize.xSmall, weight: .medium))
+                    .foregroundStyle(.white.opacity(Design.Opacity.medium))
+                
+                Text(runningCount >= 0 ? "+\(runningCount)" : "\(runningCount)")
+                    .font(.system(size: Design.BaseFontSize.large, weight: .bold, design: .monospaced))
+                    .foregroundStyle(countColor(for: runningCount))
+            }
+            
+            Divider()
+                .frame(height: Design.Spacing.xLarge)
+                .background(Color.white.opacity(Design.Opacity.hint))
+            
+            // True count
+            VStack(spacing: Design.Spacing.xxSmall) {
+                Text("True")
+                    .font(.system(size: Design.BaseFontSize.xSmall, weight: .medium))
+                    .foregroundStyle(.white.opacity(Design.Opacity.medium))
+                
+                Text(trueCount >= 0 ? "+\(trueCount, format: .number.precision(.fractionLength(1)))" : "\(trueCount, format: .number.precision(.fractionLength(1)))")
+                    .font(.system(size: Design.BaseFontSize.large, weight: .bold, design: .monospaced))
+                    .foregroundStyle(countColor(for: Int(trueCount.rounded())))
+            }
+        }
+        .padding(.horizontal, Design.Spacing.large)
+        .padding(.vertical, Design.Spacing.small)
+        .background(
+            RoundedRectangle(cornerRadius: Design.CornerRadius.medium)
+                .fill(Color.black.opacity(Design.Opacity.subtle))
+        )
+        .accessibilityElement(children: .ignore)
+        .accessibilityLabel(String(localized: "Card Count"))
+        .accessibilityValue(String(localized: "Running \(runningCount), True \(trueCount, format: .number.precision(.fractionLength(1)))"))
+    }
+    
+    private func countColor(for count: Int) -> Color {
+        if count > 0 {
+            return .green // Positive count favors player
+        } else if count < 0 {
+            return .red   // Negative count favors house
+        } else {
+            return .white // Neutral
+        }
+    }
+}
+
+// MARK: - Reshuffle Notification View
+
+/// Shows a notification when the shoe is reshuffled.
+struct ReshuffleNotificationView: View {
+    let showCardCount: Bool
+    
+    var body: some View {
+        HStack(spacing: Design.Spacing.small) {
+            Image(systemName: "shuffle")
+                .foregroundStyle(.white)
+            
+            VStack(alignment: .leading, spacing: Design.Spacing.xxSmall) {
+                Text("Shoe Reshuffled")
+                    .font(.system(size: Design.BaseFontSize.medium, weight: .bold))
+                    .foregroundStyle(.white)
+                
+                if showCardCount {
+                    Text("Count reset to 0")
+                        .font(.system(size: Design.BaseFontSize.small))
+                        .foregroundStyle(.white.opacity(Design.Opacity.strong))
+                }
+            }
+        }
+        .padding(.horizontal, Design.Spacing.large)
+        .padding(.vertical, Design.Spacing.medium)
+        .background(
+            Capsule()
+                .fill(Color.blue.opacity(Design.Opacity.heavy))
+        )
+        .accessibilityElement(children: .ignore)
+        .accessibilityLabel(showCardCount 
+            ? String(localized: "Shoe reshuffled, count reset to zero")
+            : String(localized: "Shoe reshuffled"))
+    }
+}
+
 // MARK: - Preview
 
 #Preview {

Blackjack/Views/RulesHelpView.swift

@@ -160,6 +160,31 @@ struct RulesHelpView: View {
                 String(localized: "Hit on soft 17 or less."),
                 String(localized: "Surrender 16 vs dealer 9, 10, Ace.")
             ]
+        ),
+        RulePage(
+            title: String(localized: "Card Counting"),
+            icon: "number.circle.fill",
+            content: [
+                String(localized: "Hi-Lo is the most popular counting system."),
+                String(localized: "2-6: +1 (low cards favor house)"),
+                String(localized: "7-9: 0 (neutral cards)"),
+                String(localized: "10-A: -1 (high cards favor player)"),
+                String(localized: "Running Count: Sum of all card values seen."),
+                String(localized: "True Count: Running count ÷ decks remaining."),
+                String(localized: "Positive count = more high cards remain = player advantage.")
+            ]
+        ),
+        RulePage(
+            title: String(localized: "Using the Count"),
+            icon: "chart.line.uptrend.xyaxis",
+            content: [
+                String(localized: "True count of +2 or higher favors the player."),
+                String(localized: "Increase bets when the count is positive."),
+                String(localized: "Decrease bets when the count is negative."),
+                String(localized: "Fewer decks = easier to count accurately."),
+                String(localized: "Count resets to 0 when the shoe is shuffled."),
+                String(localized: "Enable 'Card Count' in Settings to practice.")
+            ]
         )
     ]
     

Blackjack/Views/SettingsView.swift

@@ -93,6 +93,14 @@ struct SettingsView: View {
                         
                         Divider().background(Color.white.opacity(Design.Opacity.hint))
                         
+                        SettingsToggle(
+                            title: String(localized: "Card Count"),
+                            subtitle: String(localized: "Show Hi-Lo running count & card values"),
+                            isOn: $settings.showCardCount
+                        )
+                        
+                        Divider().background(Color.white.opacity(Design.Opacity.hint))
+                        
                         SettingsToggle(
                             title: String(localized: "Cards Remaining"),
                             subtitle: String(localized: "Show cards left in shoe"),

CasinoKit/Sources/CasinoKit/Theme/CasinoDesign.swift

@@ -13,6 +13,7 @@ public enum CasinoDesign {
     // MARK: - Spacing
     
     public enum Spacing {
+        public static let xxxSmall: CGFloat = 1
         public static let xxSmall: CGFloat = 2
         public static let xSmall: CGFloat = 4
         public static let small: CGFloat = 8