Checkmate was the winning position in chess. In this situation, the opponent's king was under attack with no means of escape.
In 2265, during a chess game, with James T. Kirk's next move, Spock would be in position to checkmate Kirk's king. However, Kirk did a move which saved his king. (TOS: "Where No Man Has Gone Before")
In 2266, when giving a recommendation to James T. Kirk about their situation of being caught in a tractor beam and facing destruction from the Fesarius, Spock said, "In chess, when one is outmatched, the game is over. Checkmate." (TOS: "The Corbomite Maneuver")
| Chess |
|---|
| Types: Jokarian chess • Three-dimensional chess • Vulcan chess |
| Equipment: Chess board • Chess pieces (King • Queen • Rook • Bishop • Knight • Pawn) |
| Terminology: Check • Checkmate • Chess master • Chess tournament • Stalemate |
| Strategy: Aldabren Exchange • el-Mitra Exchange • Kriskov Gambit • Queen's Gambit |
| Related: Chess problem |