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.