Play draughts against the computer — captures are compulsory, and reaching the far row crowns a king.
Your move
You are red and move up the board. Click a highlighted piece, then a highlighted square.
Checkers — draughts outside North America — is one of the oldest and most played board games in the world, and its rules fit in a paragraph while its strategy takes years. Pieces move diagonally on the dark squares, capture by jumping over an opponent, and become kings that move both ways once they reach the far side. What makes it deep is that capturing is compulsory: you cannot decline a jump, which means a well-placed sacrifice can force your opponent into a sequence they never wanted to play.
This version plays standard English draughts on an 8×8 board with three difficulty levels. The computer searches ahead with alpha-beta pruning — Easy looks one move deep and is beatable, Hard looks six plies and will punish loose play. Legal pieces and destinations are highlighted, so you can learn the rules by playing rather than by reading them.