In chess, zwischenzug (German for "intermediate move") is a common tactic that occurs in almost every game. Zwischenzug is where Player1 threatens Player2, and instead of Player2 countering the direct threat from Player1 (which Player1 expects) Player2 plays a move which poses an even more serious threat to Player1. Player1 must then counter the threat from Player2, which will ideally change the entire situation to Player2's advantage. This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... This image is originally from xboard. ... From left, a white king, black rook and queen, white pawn, black knight, and white bishop in Staunton chess pieces. ... In chess, a tactic refers to a short sequence of moves which limits the opponents options and which results in tangible gain. ...

Borisenkov-Mezenev (diagram, Black to play), continued 1...f2, threatening to queen, which White countered with 2.Rg8, intending 3.Rf8+. But White resigned after the zwischenzug 2...Bb1! which allows Black to queen (3.Kxb1 f1=Q+ or 3.Rf8+ Bf5).

These moves are given in algebraic chess notation. Algebraic chess notation is the method used today by all competition chess organizations and most books, magazines, and newspapers to record and describe the play of chess games. ...