Frozen King: Winning a Pawn Endgame by Zugzwang
White to play and win, after Marshall vs Reti, New York 1924
PlayA frozen king has no legal move while its side still has pawn moves, so every turn a pawn has to move. The rule: first make every black pawn move cost a pawn, then cover every square the black king could go to.
Updated
New to this ending? Learn the method first: King & Pawn Endgames
No signup needed. The opponent never gives up, and every mistake gets explained.
Winning with a Frozen King
White to play and win · Win against perfect defense
Waking the engine…
The theory
Watch the method: press play to see the winning idea run, or step through it move by move.
A frozen king is one that is stalemated while its owner still has pawn moves. The result is not a draw, it is a zugzwang, and it is usually fatal.
Freeze the king, not the pawns. The instinct is to lock the enemy pawns. Do the opposite: leave Black four pawn moves and make sure every single one of them loses.
The trap. g4-g5 first. Now f7-f5 is met by gxf6 en passant, h7-h5 by gxh6 en passant, and f6 or h6 are captured straight away.
The squeeze. Your king walks to c6 behind the d-pawn, d7+ drives the black king to d8, and Kd6 leaves him with zero king moves. He has to touch a pawn, and every pawn move drops material.
In this drill the pawn move comes first and the king follows. The squeeze only works because g5 poisons every pawn move Black has left.
Keep going
The Bishop Sacrifice That Buries a King
White to play and win
The Floating Square: When One Pawn Must Queen
Black to play and win
The Floating Square That Falls Short
Black to play and draw
All 68 king & pawn positionsFollow the full curriculum (free)