the library · reviewed 2026-09-14

Giri – Sindarov

88th Tata Steel Masters · 2026.01.18 · Elo 2760/2726 · defensive · ★★

The daily position for Tuesday 8 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 →

White to move. the model predicts 59% at this level.

The solution

42.c6! (not 42.♔︎e4? exf4 43.♔︎xf4 f6 −+) 42…f6 43.fxe5 (not 43.♔︎e4? f5+ −+) 43…fxe5 44.c7 ♔︎d7 45.♔︎e4 ♔︎xc7 46.♔︎xe5 =

42.c6 — almost nobody finds this
43.fxe5 — hard to find · worth +1
44.c7 — hard to find · worth +1
45.♔︎e4 — the natural move · the fair stop: the line may end here
46.♔︎xe5 — routine — shown for completeness, never demanded

“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.

What happened at the board

Giri found it · ½-½

the game went on 44.♔︎e4 ♔︎d6½-½full game ↗

The field

41% of the 29 committed lines here found the key move — the model predicted 59% at this level.

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