AI CHECKERS
Play Checkers Online vs the Computer
Play the classic game of checkers (also called draughts) directly against the computer — free, in your browser, with no download and no sign-up. You take the red pieces at the bottom of the 8×8 board; the AI takes black. Click one of your pieces and then a highlighted square to move. This is a single-player game built around an honest AI opponent: Beginner makes mistakes you can punish, Medium plays a solid tactical game, and Hard runs an extremely strong search engine that thinks about a second per move. Captures are compulsory, kings rule the endgame, and your wins, losses and draws are tracked per difficulty in your browser.
How the AI thinks
The opponent here is not a set of canned tricks — it is a real game-tree search engine, the same family of algorithm used by classic chess and checkers programs. On every turn it generates the full set of legal moves (respecting the compulsory-capture rule and multi-jump chains), then runs negamax with alpha-beta pruning: it plays out possible futures for both sides, scores the resulting positions by material, king count, advancement and board control, and picks the move with the best guaranteed result, skipping branches that provably cannot matter. A capture-aware quiescence step keeps searching through forced jump sequences so the engine is never fooled by a capture just beyond its horizon. Hard uses iterative deepening within a time budget of about a second; the whole engine runs locally in your browser (in a background worker thread, so the page stays responsive), and nothing is sent to a server.
One honest note: checkers has been solved by computers — with perfect play by both sides it is a draw — but that proof used enormous specialised databases. Our Hard engine is extremely strong against human play, yet we do not claim it is perfect. That is your opening: see the tips below.
How to play checkers — the rules
- Move diagonally forward. Click one of your red pieces, then a highlighted dark square. Ordinary pieces (men) move one square diagonally toward the far side.
- Capture by jumping — and you must. If an enemy piece sits diagonally ahead with an empty square beyond, you jump it and remove it. Captures are compulsory: when a jump exists, the board highlights it and only jumps are allowed. If the same piece can keep jumping, it must chain the whole sequence in one turn.
- Crown your kings. A man that reaches the far row becomes a king, marked with a crown. Kings move and capture diagonally in every direction — forwards and backwards.
- Winning. Capture all of the opponent's pieces, or leave them with no legal move, and you win. If neither side can make progress, the game is declared a draw.
- Undo and hint. Undo takes back your last move and the AI's reply. Hint asks the engine to show you a strong move for the current position.
Tips to beat the AI
- Control the center. Pieces in the middle of the board have more squares to move and attack from; pieces stuck on the edge are only half as mobile.
- Keep your back row intact. The two anchor squares on your back row stop the AI from crowning kings — hold them until you have to advance.
- Set up multi-jumps. Because captures are forced, you can bait the AI into a jump that opens a bigger double or triple jump for you on the next move. Count the trade before you commit.
- Race to the first king. A king is worth far more than a man in the endgame. When the board thins out, push a piece toward promotion while blocking the AI's runner.
FAQ
Can I play checkers online against the computer?
Yes — that is exactly what this page is. Pick a difficulty, choose who moves first, and play. Works on desktop and mobile, free, with no account.
How strong is the AI?
Beginner deliberately plays some random moves. Medium always grabs a free capture and avoids simple traps. Hard runs a negamax search with alpha-beta pruning and capture-aware quiescence, thinking about a second per move — extremely strong, though we don't claim perfection.
Do I have to capture?
Yes. Captures are compulsory, jump chains must be completed, and the board highlights forced jumps for you. A man crowned mid-jump stops on the crowning square.
Can ordinary pieces capture backwards?
No — under these American (English draughts) rules, only kings move and capture backwards. Promote a man to a king to unlock that.
Is it free? Does it work offline?
Completely free, no download, no sign-up. The engine runs client-side, so once loaded the game keeps working without a connection. More AI games: AI Chess, AI Othello, AI Connect 4, AI Tic Tac Toe or AI Minesweeper.
More AI games on LK Forge
You win!
All pieces captured.