Checkmate

Referenced by

• 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.
• Attack — An attack is a move or coordinated plan that threatens an opponent’s piece, pawn, key square, or king, forcing them to respond.
• Babson Task — A Babson Task is a chess problem in which White must reply to each of Black’s four possible pawn promotions by promoting to the same piece to deliver mate.
• 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.
• Bare King — A bare king is a king whose side has no other pieces or pawns left on the board.
• Blackburne's Mate — Blackburne's Mate is a checkmate pattern in which a bishop protected by a knight delivers mate along a diagonal to a king whose flight squares are blocked by its own pieces or the board edge.
• 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.
• Check — Check occurs when a player's king is under direct attack by an opponent's piece and must be resolved on the next move.
• 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.
• Chess Clock — A chess clock is a two-faced timing device that tracks each player's remaining time separately, with players pressing a button after each move to stop their clock and start their opponent's.
• Chess Composer — A chess composer creates original chess problems such as mate-in-n puzzles, studies, or retrograde problems, designed for others to solve rather than for competitive play.
• Chess Problem — A chess problem is a composed position in which the solver must find a precise sequence of moves to achieve a stipulated goal, most often checkmate in a set number of moves.
• 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.
• Copium Checkmate — Copium checkmate is chess slang for an imaginary mate the loser clings to while refusing to resign or acknowledge the position on the board.
• 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.
• Dead Draw — A dead draw is a position offering neither side any realistic winning chances even against suboptimal defense, typically from insufficient material or blocked structures that prevent all progress.
• Decoy — A decoy is a tactic that lures an opponent’s piece onto a particular square, often exposing it to capture or diverting it from defending a more important target.
• Draw — A draw is a tied chess result in which neither player wins and both receive half a point, arising via stalemate, threefold repetition, the fifty-move rule, insufficient material, or mutual agreement.
• Engine Eval — Engine eval is a chess engine's numerical assessment of a position, usually shown in pawn units where +1.00 means white stands a pawn ahead.
• Evergreen Game — The Evergreen Game is the 1852 encounter between Adolf Anderssen and Jean Dufresne, famed for its spectacular queen sacrifice and attacking brilliance.
• Excelsior — Excelsior is a chess problem theme in which a single pawn advances from its starting square through successive moves to promotion, typically enabling a surprising mate.
• Flag Champ — A flag champ is a player who repeatedly wins by exhausting the opponent’s clock rather than by checkmate or resignation.
• Flag Demon — A flag demon is a player, typically in blitz or bullet, who deliberately steers games into mutual time pressure to win on the clock rather than by checkmate or resignation.