Knight vs Rook Pawn: Choosing the Right Barrier
White to play and draw
PlayThe black rook pawn is one step from queening and your king is far away. Your knight cannot stop it alone for long, but from e4 it can set up a barrier on g3 or on f2 that covers h1 and keeps the black king away for a while. The rule: choose the barrier the black king has to walk around for longest, so that your king arrives in time to defend the knight.
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Choosing the Barrier Square with King Support
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.
First, the wrong barrier. Nf2 also covers h1, but the black king is close. It comes to e2 and attacks the knight, which runs to h1 and is lost there. Your king is too late for f2, and the pawn will queen.
A lone knight cannot stop a rook pawn that has reached the seventh rank. What it can do is build a barrier, a fence of controlled squares that keeps the enemy king out, and hold long enough for its own king to arrive.
Two barriers, one choice. From e4 the knight can barricade on either f2 or g3. Both cover h1 and freeze the pawn, but they fence the king off in different directions. Which one draws depends on where the enemy king stands: choose the barrier your own king can reach and defend. Here that square is g3, defended later from f4.
The king must be close enough. The barrier only buys time, it does not draw by itself. If the defending king is too far away, the black king walks around the fence and shepherds the pawn home before help comes. Count the detour against your king's march every time.
In this drill the opponent will march his king the long way round the barrier. Set the g3 barrier, bring your king to f4, and the half point holds.
Keep going
Lateral Control of the Promotion Square
White to play and draw
The Knight's Worst Square
White to play and win
Knight Holds Two Connected Pawns
White to play and draw
All 21 knight endgames positionsFollow the full curriculum (free)