🔴 Checkers

How to play

• This is classic Polish checkers on an 8×8 board — played only on the dark squares. Each player starts with 12 men. White (you, unless you choose black) moves first.
• Man's move: diagonally forward one square, onto a free dark square.
• Captures are mandatory on Medium and Hard — if you can capture, you must (official rules). A man captures by jumping over an adjacent enemy piece onto the free square directly beyond it, both forward and backward. Pieces that can capture are highlighted and are the only ones you may move. On Easy, captures are optional (house rules) — you may capture or make a quiet move, and the computer plays by the same rule.
• Multi-capture: if the same piece can capture again after a jump, on Medium and Hard it must continue — it stays selected and the game shows the forced follow-up jumps. On Easy the continuation is voluntary — keep capturing or stop the series with the "End move" button. Captured pieces are removed from the board only after the whole sequence ends, and no piece may be jumped twice in one sequence.
• Choice of capture: when several captures are possible, you may pick any of them — this version does not enforce the maximal-capture rule (a simplification of tournament rules).
• King: a man that ends its move on the last row is promoted to a king (⛃). The king is "flying": it moves any number of squares diagonally and captures by jumping a single enemy piece, landing on any free square beyond it — and may then continue capturing.
• Win: your opponent loses all pieces or has no legal move. Draw: 15 consecutive king moves by both sides with no capture and no man move.
• Difficulty levels: Easy — the computer plays loosely and makes mistakes; Medium — it plays sensibly; Hard — it calculates several moves ahead. Each level has its own leaderboard. A win records your number of moves — the fewer, the better. The "Undo" button takes back your move together with the computer's reply.