Knight vs Rook Pawn and King: The Knight Sacrifice in the Corner

Watch the method: press play to see the winning idea run, or step through it move by move.

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. Timing is what makes it work: the immediate 1.Nh6, heading for h2, loses to 1...h2 2.Ng4 h1=Q, queening with check on the long diagonal your own king stands on.

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.