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Endgame Trainer

Practice converting winning endgames β€” and holding drawing techniques β€” against a full-strength Stockfish opponent, drilled one position at a time.

Basic Checkmates

King & Queen vs King

Checkmate the lone king using your queen and king β€” box the king to the edge.

King & Rook vs King

Checkmate the lone king using your rook and king β€” the classic 'box' method.

Two Rooks vs King

The 'ladder mate' β€” march the king to the edge one rank/file at a time.

King, Bishop & Knight vs King

The hardest of the basic mates β€” corral the lone king into the corner that matches your bishop's color.

Rook Endings

Lucena Position

The essential winning technique when your own king blocks your pawn β€” build the 'bridge' with your rook so the pawn can safely promote.

Philidor Position

The classic drawing technique β€” as the defender, hold the far rank to keep the enemy king out, then swing your rook behind the pawn for checks once it advances.

Vancura Position

A key drawing resource against a rook pawn β€” attack the pawn from the side and give checks from a safe distance to stop it queening.

Pawn Endings

King & Pawn vs King

Use the opposition to escort your pawn to promotion, then mate.

Opposition & Triangulation

You have the right idea but the wrong move β€” use triangulation to lose a tempo, hand your opponent the move, and win the opposition back.

Outside Passed Pawn

Use your outside passed pawn as a decoy β€” push it to drag the enemy king away, then invade with your own king to mop up.

Pawn Race

You're up a pawn β€” convert your extra material into a win.

Advanced

Queen vs Rook

A famously tricky technical win β€” separate the rook from its king, then mate.