About ChessEndings

Why this exists

Most players learn endgames by reading about them, then lose the same positions over the board because they never had to convert one against a defender who refuses to help. ChessEndings flips that: you play every ending out against a tablebase-perfect opponent that never gives up, sets the hardest traps, and holds every theoretical draw.

Tablebase-verified, not hand-waved

Every position in the curriculum is checked against the Syzygy endgame tablebase, so the win/draw/loss verdict and the opponent's defense are provably correct, not one author's opinion. When you go wrong, the mistake is explained with the concrete reason the position turned. Positions you missed come back to revisit, mirrored and color-swapped, so you keep the idea rather than memorizing the squares.

Independent project

ChessEndings is a small, independent chess project. The free tier covers the entire tier-1 curriculum forever; Pro supports the work and unlocks unlimited drills, the full curriculum, and complete game scans. Start with the endgame guides or jump straight into a playable ending.

Contact

Questions, corrections, or feedback are welcome, see the contact page.