little_guinea_pig wrote:
the unzicker position hm
the zugzwang at the start of this position is very nice (for those who don't know 1...g5 loses to hxg5 and no matter which way black takes there's a rook check next move, so black is forced to move his rook. and he can't move it off the a-file, so he needs to move it off the rank and allow white's king to penetrate
I'm going to make one of these every day about the depths of the +1 pawn on the queenside rook endgame
In the following position (Unzicker - Lundin, Amsterdam 1954), white played:
1.a7!!
Which looks drawing. After all, white can't bring his king to support the pawn anymore. If he ever touches the pawn with his king, black will check him and then move his rook back to the a file.
Of course, black's king and pawns are in zugswang - he cannot move his pawns or his king without losing the game. But what can white do?