Full standard rules — castling, en passant, and promotion all included.
Standard chess rules apply. Tap a piece to see its legal moves highlighted, then tap a destination square to move. Castling, en passant, and pawn promotion are all supported — when a pawn reaches the far row, you'll be asked which piece to promote it to.
Pick "Play with Friend", create a room, and share the code or invite link. Whoever creates the room plays White and moves first; whoever joins plays Black. Moves travel between the two browsers using a direct or relayed connection. Keep both game tabs open; connection delays can vary.
Develop your knights and bishops before your queen, and aim to control the four central squares early in the game. Castle within the first ten moves or so to tuck your king away safely and connect your rooks. Before moving, always check whether the move you're considering leaves any of your pieces undefended or exposes your king to a check.
Does this include castling and en passant? Yes — both special moves are fully supported, along with pawn promotion with a choice of piece.
How strong is the computer opponent? It looks two moves ahead — your move and its best reply — using material value, so it won't blunder pieces for free but isn't a grandmaster-level engine.
What happens when a pawn reaches the last row? You'll be prompted to choose which piece to promote it to: queen, rook, bishop, or knight.
Tap a piece to inspect its legal destinations, then choose a square. Use the highlights as a legality aid and build a separate habit of asking what the opponent threatens. Checks, captures and direct attacks deserve attention before a slow development move. Develop pieces towards useful squares and make room for your king’s safety. A move can be legal and still lose a valuable piece, so the highlighted squares do not replace a tactical check.
If a bishop appears able to capture an enemy rook, first check whether the move is legal and what protects that rook. Giving up a bishop for a rook may be a useful material exchange, but a legal capture can still abandon another piece needed for defence. A move that exposes your king to check is illegal. Inspect the resulting position and the opponent’s likely reply instead of choosing solely by the captured piece’s value.
Castling, en passant and promotion are supported by this version. Promotion asks you to choose a piece. The lightweight computer is a practice opponent; this page does not provide a rating, tournament clock or guarantee that its moves are optimal.
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