Check

Referenced by

• Anastasia's Mate — Anastasia's mate is a checkmate pattern in which a knight and rook combine to trap the enemy king, typically with the knight checking while the rook seals an adjacent file or rank and a friendly or enemy unit blocks one escape square.
• Antichess — Antichess is a chess variant in which captures are mandatory and the player who captures the opponent's final piece or leaves the opponent with a lone king that has no legal moves wins.
• Arabian Mate — The Arabian mate is a checkmate pattern in which a knight and rook combine to trap the enemy king in a corner, with the knight delivering check from a safe square while the rook protects it and seals the adjacent rank or file.
• Atomic Chess — Atomic Chess is a chess variant in which every capture causes an explosion removing the captured piece, all adjacent non-pawn pieces, and the capturing piece itself unless it is a pawn, fundamentally changing piece values and king safety.
• Back Rank — The back rank is the first rank for White or eighth for Black, where each king starts and often remains after castling, leaving it vulnerable to mate when its own pieces block all escape squares.
• Back-Rank Mate — A back-rank mate is a checkmate in which a king trapped on its back rank by its own unmoved pawns or pieces is attacked along that rank by an enemy rook or queen.
• Battery — A battery consists of two or more same-colour pieces aligned on a file, rank or diagonal, with the stronger piece behind, so the front unit can move to unleash the rear piece’s concentrated pressure.
• Bishop Of The Wrong Color — A bishop of the wrong color cannot control the promotion square of its passed pawn, typically allowing the defending king to draw a king-and-bishop versus king-and-rook-pawn ending by occupying the promotion corner.
• Blind Pigs — Blind pigs is the informal name for two rooks doubled on the seventh rank, where they typically create decisive threats against the enemy king and pawns.
• Bonehead Move — A bonehead move is an obvious blunder such as hanging a piece or allowing an elementary tactic that a player of the same strength should spot instantly.
• Bughouse — Bughouse is a team chess variant played on two boards where partners immediately pass captured pieces to each other for drops on their own board on any later turn.
• Building A Bridge — Building a bridge is a rook-endgame technique, seen in the Lucena position, where the attacking rook moves beside its king to block lateral checks and let the king escort a seventh-rank passed pawn to promotion.
• Capture — Capture is the act of moving your piece onto a square occupied by an opponent's piece and removing that piece from the board.
• Castling — Castling moves the king two squares toward a rook, which then jumps to the square the king crossed, provided both pieces are unmoved, the path is clear, and the king neither starts in check nor passes through or lands on an attacked square.
• Caveman Attack — A caveman attack is an unsophisticated, direct assault on the king that ignores positional principles in favor of crude threats and rapid piece activity.
• Centaur — In fairy chess a centaur is a piece that moves either as a knight or as a non-royal king.
• Cheap Trick — A cheap trick is an unsound tactical trap or swindle that succeeds only when the opponent overlooks an obvious threat, typically from a lost or inferior position.
• Cheapo — A cheapo is a simple tactical trick or swindle played to catch an inattentive or time-pressed opponent.
• Chess Blindness — Chess blindness is a player's temporary inability to see an obvious move, capture, or threat on the board, typically caused by fatigue, time pressure, or fixation on a single idea.
• Clearance — Clearance is a tactical motif in which a piece moves aside to vacate a square or open a line for a more powerful piece—usually a rook or queen—often gaining tempo by delivering check or creating a threat.
• Coffin Nail — A coffin nail is a move, often a pawn advance, that locks the enemy king into a mating net from which there is no escape.
• Coquio's Mate — Coquio's Mate is a checkmate pattern in which a queen protected by a knight mates a king trapped on the edge of the board by its own pieces or pawns.
• Crazyhouse — Crazyhouse is a chess variant in which captured pieces can immediately be dropped back onto the board as the capturer's own pieces, following standard movement rules.
• Desperado — A desperado is a doomed piece that captures the highest-value enemy unit reachable before it is taken.