Vera Menchik vs Sonja Graf, Semmering, 1937
White to move. How should white proceed?
1 Rd7! Qc6 (to keep the white queen worried about Qxh2#)
(If 1. ... QxR then 2. Qxh5! And mate follows with either Bh7 or Qh7 or Qh8 depending on black’s response...basically, the threat of Qxh5 means that the black queen has to somehow maintain a serious and immediate threat for white too, so the name of the game becomes overloading that queen to buy a tempo for QxH5!)
2 Be4! (Taking away the Qxh2 risk and leaving the black queen with no way to keep White’s bishops, knight and queen all at bay)
2 .... and I don’t see great options for black here A) QxB, NxQ, BxN, RxB is Clearly losing b) Qc8, Qxh5! Loses C) other?!
Given these terrible options after Be4, then...perhaps Black doesn’t play Qc6 at all, but just does 1 ... Qxh2+, QxQ, NxQ, but even that has serious trouble after RxBd7 with lots of interesting mating net threats
Though, admittedly, I might not have seen it so quickly if I hadn't been studying Molokai's idea.
1.Qh5 wins a pawn: 1.Qh5?! Qh2 3.Qh2 Nh2 4.Nf7!? Kf7 5.Kh2 Rad8 nets white pawn in total.
However, I can see a much better move almost immediately in this position.