Checkers
Damas · 8×8 · 12 pieces a side · Your pieces are at the bottom, moving up.
Your pieces12
Machine’s pieces12
How it works
- Pieces move one square diagonally forward on dark squares only.
- Captures are mandatory — if you can jump, you must. Multi-jumps chain in one turn.
- Reach the far row to be crowned a King (Dama) — kings also move and capture backwards.
- Win by capturing every machine piece, or leaving the machine with no legal move.
Chess
Classic chess · Full rules · Your pieces are at the bottom.
Captured by you
Captured by the machine
Move1
How it works
- Full rules: castling, en passant, promotion (you choose Queen, Rook, Bishop or Knight), check, checkmate and stalemate.
- Tap a piece to see its legal moves, then tap a highlighted square.
- Win by checkmate. A stalemate or bare-kings ending is a draw.
Chess 960
Fischer Random · Same rules, shuffled back rank · Your pieces are at the bottom.
Position number (1–960)–
Captured by you
Captured by the machine
How it works
- The back rank is shuffled into one of the 960 valid positions: bishops start on opposite colors and the king starts between the two rooks.
- Castling works as in classic chess — king and rook land on the usual castling squares (king to the c- or g-file, rook to the d- or f-file). Tap your king to see the castling squares highlighted.
- Everything else — en passant, promotion, checkmate, stalemate — follows classic chess.
Othello
Reversi · 8×8 · Flip what you surround.
Your discs2
Machine’s discs2
How it works
- Place a disc so it brackets a line of the machine’s discs between your new disc and one you already own — everything in between flips to your color.
- You can flip in any of the 8 directions at once. If you have no legal move, your turn passes.
- When the board fills (or neither side can move), the side with more discs wins.
Go 9×9
Small board · Stones on the intersections · You play first.
Your captures (machine stones taken)0
Machine captures (your stones taken)0
Score estimate–
How it works
- Tap an intersection to place a stone. Connected stones form a group; a group with no empty neighboring point (liberty) is captured and removed.
- You may not play a move that immediately recreates the previous board (ko rule), or a suicide move that captures nothing.
- Pass when you are done. Two passes in a row end the game.
- Simple scoring: your stones on the board + empty territory surrounded only by you + stones you captured. The machine gets 5.5 points komi for playing second.
Shogi
Japanese chess · 9×9 · Captured pieces join your side and can be dropped back · Your pieces are at the bottom.
Pieces & drops
- K King · R Rook · B Bishop · G Gold · S Silver · N Knight · L Lance · P Pawn.
- Your pieces move up the board. Silver moves diagonally or straight ahead; Gold (and promoted pieces) move like a king except the two back diagonals. Knights jump forward only; lances slide straight ahead.
- Pieces entering the far three rows may promote (+). Rooks and bishops gain the missing king-steps; P, L, N and S then move as Gold.
- Captured pieces change sides: tap a piece in your hand, then tap an empty square to drop it. No pawn drop on a file that already has your pawn; pawns, lances and knights may not be dropped where they could never move.
- Win by checkmate.
Xiangqi
Chinese chess · 9×10 · River and palaces drawn · Your pieces are at the bottom.
Captured by you
Captured by the machine
How it works
- Pieces sit on intersections. G General · A Advisor · E Elephant · H Horse · R Chariot · C Cannon · S Soldier.
- The General never leaves its 3×3 palace (drawn with diagonals) and moves one step orthogonally; the two generals may never face each other on an open file.
- Advisors move one diagonal inside the palace. Elephants move exactly two diagonals and never cross the river. Horses move like a knight but can be blocked.
- Cannons move like chariots but capture only by jumping exactly one screen piece. Soldiers move forward; after crossing the river they may also step sideways.
- Win by checkmate — or stalemate, which also loses in Xiangqi.
Sliding Puzzle
Single player · Slide tiles into the empty space · Every shuffle is solvable.
Moves0
Time0:00
Best (this size & style)–
How it works
- Tap a tile next to the empty space to slide it in.
- Shuffles are made by sliding tiles from the solved state, so a solution always exists — no impossible boards.
- Auto-solve finds the way back to the solved board and plays it for you, move by move.
- Green outline = tile already home (numbers style). Finish to stop the clock.