Zwischenschach by Karsten Müller Zwischenschach is German for in-between-check, which is an important technique in the rook endgame. 164.01 Fabian,Jaroslav (2275) - Pinter,Erik (2196) SVK-chT3B 0001 Slovakia (9), 2001 [FEN "8/8/8/5K2/8/6P1/r7/1k6 b - - 0 52"] Black must play the zwischenschach 52...Rf2+! But not the other check 52...Ra5+? 53.Kf6 Kc2 54.g4 Kd3 55.g5 Ke4 56.g6 Ra6+ 57.Kf7 Kf5 58.g7 Ra7+ [FEN "8/r4KP1/8/5k2/8/8/8/8 w - - 0 59"] And now the stalemate defense 59.Kg8!? Kg6 60.Kh8 Rxg7 stalemate is the best technique. 53.Ke5 Rg2! 54.Kf4 And only now Black's king can come: 54...Kc2 55.g4 Kd3 56.Kf5 Kd4 57.g5 Kd5 58.Kf6 Kd6 59.g6 Rf2+ 60.Kg7 Ke7 … [Read more...]