Chess
Standard chess from opening tactics to expert endgames.
Play level 1 Two players, one device
Level 1: Mate at the Edge. Play Qg7# to deliver checkmate.
Rules
Goal: Checkmate the opposing king. In graded levels the bot may also resign a clearly lost position.
- Standard chess rules: White moves first, each piece moves in its usual way.
- Castling, en passant and promotion are supported. A pawn reaching the last rank promotes to the piece you choose.
- You may not leave your own king in check. Checkmate wins; stalemate is a draw.
- Draws also occur by threefold repetition, the fifty-move rule and insufficient material. Draws do not clear a level.
- In graded levels the bot resigns when it stays a rook or more behind in material; that counts as a win for you.
Controls: Tap or click a piece, then a highlighted square. Promotion asks which piece to choose. With a keyboard, use the arrow keys and Enter.
The ten levels
Levels 1 to 7 are free and open one at a time. Levels 8 to 10 are expert challenges with Premium.
- Mate at the Edge Find a supported queen mate. Play Qg7# to deliver checkmate. Available
- Develop and Win Develop pieces before attacking. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Locked
- The Centre Fight Coordinate development and centre pawns. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Locked
- Open Files Use open files and exchanges. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Locked
- Black Counterplay Develop as Black in an asymmetric structure. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Locked
- Space and Timing Judge whether to trade or maintain space. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Locked
- Defend then Attack Handle pressure with active development. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Locked
- Minor Piece Final Convert an endgame with accurate promotion timing. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Premium
- Rook Activity Find counterplay in a rook ending under a fast clock. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Premium
- Queen and Rook Final Win from the Black side in a complex heavy piece ending. Win by checkmate or an engine resignation configured for this level. Draws do not clear. Premium
Strategy tips
- Develop first
- Bring knights and bishops out and castle before launching an attack.
- Check every capture
- Before each move, look at every check, capture and threat for both sides.
- Control the centre
- Pawns and pieces on d4, e4, d5 and e5 give your pieces room and limit your opponent.