The daily position for Tuesday 18 August 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 47% at this level.
The solution
25…b4!(not25…♘︎xc5?26.b4♕︎a427.bxc5±)26.c6(26.cxb4is as good:26…♕︎xb427.♖︎g1♖︎xc5∓)26…♘︎e527.cxb4♕︎xb428.♖︎e2♖︎xc629.♖︎xc6♘︎xc6∓
25…b4 — almost nobody finds this
26…♘︎e5 — most players miss this · worth +1
27…♕︎xb4 — the standard move
28…♖︎xc6 — the natural move · the fair stop: the line may end here
29…♘︎xc6 — 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
Meng found it · 0-1
the game went on26.cxb4♕︎xb427.♖︎e2♖︎xc528.♖︎ec2♖︎xc229.♖︎xc2♘︎e530.♘︎f2♘︎fd731.h4♕︎e1… on to move 58 · 0-1full game ↗