26. Nh6+ is a splendid move.
Houdini seems to think that 31.... Bb1 was a huge blunder, the evaluation going from 0.84 to 18.92. It does look odd but I can't see the move which holds the position for black. Earlier in the game Houdini also dislikes 22. ... Rc7. That I can more readily understand.
I agree, 26. Nh6ch starts a wonderful combination by Stefanova. I haven't looked at Houdini, but it seems like 28...c5 is an error, because that lets Stefanova's bishop have the c4 square after she takes the b5 pawn with it.
26. Nh6+ is a splendid move.
Houdini seems to think that 31.... Bb1 was a huge blunder, the evaluation going from 0.84 to 18.92. It does look odd but I can't see the move which holds the position for black. Earlier in the game Houdini also dislikes 22. ... Rc7. That I can more readily understand.