Knight vs Rook Pawn and King: The Knight Sacrifice in the Corner
White to play and draw
PlayThis time the knight can only reach a square that guards h1, and h1 never holds a rook pawn by itself. The draw comes from a paradox: put the knight on h1 and let Black take it. The king that captures there locks itself in front of its own pawn.
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Offer the Knight in the Corner
White to play and draw · Hold the draw against perfect play
Waking the engine…
The theory
Watch the method: press play to see the winning idea run, or step through it move by move.
Your knight cannot reach h2 in time. It can only guard h1, and the corner square alone never stops a rook pawn. But look at what the knight on g3 does to the black king: it fences off e2 and e4, and even e3 and d2 are poisoned, because stepping there runs into the fork Nf1. That fence is a barrier, and knight forks are what hold it together. So the knight buys time while your king runs across the board.
A knight that only controls the corner square cannot hold a rook pawn alone. That does not mean the game is lost. It means the king has to come and help.
The knight buys time. 1.Ng3 is the only move: it stops h3-h2-h1 from queening and freezes the position long enough for the white king to cross the board from a8.
The barrier. The knight on g3 does more than guard h1. It fences the black king out of e2 and e4 and poisons e3 and d2 with the fork Nf1, so the king has to detour the long way round. That barrier holds only because your king is close enough. Push the defender one file farther away and it fails: the pawn queens with check before help arrives.
The offer. When the black king comes to attack the knight, 5.Nh1 puts it en prise on purpose. Taking it costs Black the game: the king on h1 is imprisoned by its own pawn on h2, and White answers Kf2 with stalemate. Timing matters, though. The same move played too early, before your king is close, simply loses the knight for nothing.
In this drill Black will escort the pawn with the king. March your own king over, hold h1 with the knight, and hand the knight over at the right moment.
Keep going
Deflect the Blockader, Run the Rook Pawn
White to play and win
Stopping the Rook Pawn With Check
Black to play and draw
Sacrifice to Clear the Pawn's Path
White to play and win
All 21 knight endgames positionsFollow the full curriculum (free)