Pedantically speaking

谭中怡 (Tán Zhōngyí) – Bella Khotenashvili
2nd Women’s Chess World Cup; Quarterfinal match game 1; Baku, August 12, 2023
3r3r/p2P1pk1/q1p1p1pp/3b4/P2P4/Q5P1/5PBP/2R1R1K1 w - - 1 30

Position after 29. ... Kf8-g7

The position in the diagram is the climax of the first game of the quarterfinal between 谭中怡 (Tán Zhōngyí) and Khotenashvili. White, who has the move, enjoys a dominating position, but, in the middle of a fast and furious “time scramble”, both sides inevitably commit inaccuracies and mistakes.
30. Qd6? Strangely enough, this natural move turns out to be a loss of time. White ought to have continued 30. Bxd5! cxd5 31. Rc7 with a crushing bind.
30. ... Qxa4!? And here 30. ... Bxg2 31. Kxg2 Qb7! was perfectly safe and correct.
31. Bxd5 cxd5 32. Rc7 Qxd4 33. Rxe6!

33. ... Rhf8? The right defence was 33. ... h5! menacing the capture of the Rook at the same time as giving the King an escape square.
34. Re5! Qb6. Now it’s too late for 34. ... h5 as White has time to play 35. h4 (due to the Rook no longer being en prise).
35. Rc6 Qb1+ 36. Kg2 Qd3 37. h4! Rb8 38. h5 Rb1

Threatening the Queen check at f1, but... White comes first.
39. Qxf8+! Kxf8 40. d8=Q+ Kg7 41. Rxg6+!? 1 : 0. Pedantically speaking, 41. Qf6+! would force mate in two moves, but the text also does the job, even if it takes a little longer.

Today 谭中怡 (Tán Zhōngyí) shone gloriously and radiantly in her traditional Chinese dress. Photo: Stev Bonhage/FIDE.