A chess endgame trainer graded by tablebases
Work through a curriculum of endgame positions and get every move graded against Syzygy tablebases wherever the position is in range, so "correct" means provably correct.
Provably correct feedback
Endgames are exactly the positions where an engine guess is not good enough. Where a position falls within Syzygy tablebase range, your moves are checked against the tablebase itself, move by move.
A curriculum, not a pile of positions
Positions are organised as a curriculum, and the app can check for new positions. Endgames feed the same spaced-repetition review queue as the rest of your training, so what you miss returns on schedule.
Questions
Good to know
What are Syzygy tablebases?
They are precomputed databases that give the exact result of endgame positions with a small number of pieces, so a move can be judged as objectively winning, drawing or losing.
Are all endgame positions graded by tablebase?
Only positions within tablebase range. Wherever a position is in range, grading uses the tablebase.
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