Never Lose an Endgame Again.
Essential endgames where every move is verified by tablebasesPrecomputed databases holding the perfect result for every position with seven pieces or fewer — each move is provably best by distance to mate. Learn more on Wikipedia and StockfishThe strongest open-source chess engine. It checks larger positions deeply, so the move is verified — never a human guess. Learn more on Wikipedia — so what you learn is mathematically optimal, not someone's best guess. Trust the technique because it's provably right.
From a tricky position to clean technique
Pick an endgame
Choose from the essential endgames — Lucena, Philidor, the opposition, king-and-pawn races, and more.
Play the verified technique
Execute the method move by move on the board, every step proven optimal by the engine.
Master the concept
Learn the idea underneath — opposition, key squares, zugzwang — so it transfers to your own games.
The Lucena position — every move of the bridge proven optimal, not an approximation.
Verified moves, not best guesses
Endgames are exact — there's a right answer. Positions with seven pieces or fewer are checked against Syzygy tablebases (provably optimal by distance-to-mate); larger ones against Stockfish at depth 40. No guessed moves.
Tablebase- and engine-verified — a correctness guarantee no video course makes.
Direct opposition: the kings face off so your pawn can promote.
Carefully curated to break your plateau
We hand-picked the endgames that actually decide games up to 2000 — Lucena and Philidor, the opposition and key squares, the rule of the square. No 200-position firehose: just the high-leverage methods that turn half-points into wins and push you past the rating plateau.
Why our endgames are different
Tablebase-verified
Positions up to 7 pieces are provably optimal by distance-to-mate, straight from Syzygy.
Engine-verified
Larger positions are checked deep by Stockfish — no move is a human guess.
The concepts underneath
Opposition, zugzwang, key squares, the rule of the square — the ideas that transfer.
Ask the AI coach anytime
Stuck on a move? Ask your AI coach at any point and get the idea explained for that exact position.
Stop drawing won endgames.
Learn the technique that's provably right and convert the positions you've been letting slip — free to start.
Explore endgame lessons