The daily position for Tuesday 22 September 2026. It is still open to solve — the grader reads your whole line, sidelines and evaluation included, before anything here is shown. Cover the solution and solve it first →
Black to move. the model predicts 73% at this level.
The solution
57…♖︎a3+!(not57…♔︎c5?58.♘︎b3++−)58.♔︎c2♔︎c559.♔︎b2(59.♘︎b3+is as good:59…♔︎xc4=)59…♖︎d3(not59…♖︎a8?60.♔︎c3♔︎d661.♘︎b3♖︎a462.♘︎c1+−)60.♘︎c2(60.♘︎e6+is more resilient:60…♔︎b461.♖︎e1♖︎d2+=)60…♔︎xc461.♖︎xa2♖︎b3+=
57…♖︎a3+ — most players miss this
58…♔︎c5 — the standard move
59…♖︎d3 — most players miss this · worth +1
60…♔︎xc4 — the standard move
61…♖︎b3+ — the natural move
“hard to find”, “the natural move” and the rest describe how often this move is played by Maia-2, weighted across the 1500/1900/2000 audience the difficulty model is fitted on — a model of human play, not a count of anyone who solved this position.
Members can take this away as a PGN — the diagram, the verified line and their own analysis in one file, for a database, Anki or Chessable.