Apr-23-11 Speelman vs Azmaiparashvili, 1994 
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knight knight: White to play, pawn down.
I'm looking at the queen sac 25. Qxh5 in order to launch an offensive on the black king. 25...gxh5 26. Bxf4+: a) 26...Ng6 27. Bxd6 black's queen is short of good squares, e.g. 27...Qg7 28. Rdf1 white's attack is very strong. b) 26...Kh8 27. Bg5 with ...
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| | Apr-22-11 Panno vs Spassky, 1955
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knight knight: Hmmm, right ideas, wrong execution. A very neat combo by Panno!
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| | Apr-21-11 Wahls vs R Vera, 1996
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knight knight: Black to play, two pawns down.
This must be 22...Bxh2+:
1) 23. Kf2? Qh4#
2) 23. Kxh2? Qh4+ 24. Kg1 Qg3+ 25. Qg2 Qxg2#
3) 23. Qxh2 Qxe3+:
a) 24. Qf2? Qg5+ 25. Kh2 (25. Qg2 Qxg2#, 25. Qg3 Qxg3#) Rxh6+ 26. Qh4 Rxh4# b) 24. Rf2 Qg5+:
i) 25. Kf1 Qxb5+ bishop for pawn ahead
...
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| | Apr-20-11 M Vachier-Lagrave vs I Nepomniachtchi, 2011
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knight knight: White to play, pawn down.
I see 36. Rg7 with powerful mate threat on h7:
a) 36...Kxg7 37. Rf7+:
i) 37... Kg8/h8 38. Qxh7#
ii) 37...Kh6 38. Rxh7#
b) 36...Rd1+ 37. Kh2 Qb8+ 38. g3 and black still can't take the rook
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| | Apr-19-11 Khalifman vs I Bukavshin, 2011
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knight knight: 24. Bh3+:
a) 24...g4 25. Bxg4+ same threats, 25...f5?? 26. Bxf5+ b) 24...Nd7 25. Bxd7+
c) 24...Kb8/c7 25. Qe5+ and 26. Qxh8
d) 24...Rxh3 25. Qf8+ Kc7 26. Qd8#
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| | Apr-15-11 A Luczak vs Fedorowicz, 1979
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knight knight: White to play, pawn down.
Ok think I've got this - 32. Nf6! same move as yesterday, this time threatening mate on h7. The only defense (ignoring 32...Qd4+ and 32...Qxh2+) is 32...gxf6, then white plays 33. Rg4! Now black is threatened with mate on both g8 and g7. 33...Qd4+ ...
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| | Apr-14-11 Vasiukov vs Taimanov, 1965
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knight knight: White to play, material even.
37...Rxg4 is a pin threat, one way of stopping this is 37. Nf6 forking queen and rook. If 37...Kxf6 38. Qf3+ picks up the e4 rook, thus winning the exchange. Black has some counterplay with the c/d pawns but his king is exposed, so 1-0 not long ...
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| | Apr-13-11 Dao Thien Hai vs Kasparov, 2001
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knight knight: Black to play, material even.
23...Rxe3+:
a) 24. Kd1/2 Rxf3
b) 24. Qxe3 Qxg4+ and 25...Qxd7 (two pawns ahead)
c) 24. Kxe3 Re8+:
i) 25. Kd2/3/4 Qxf3(+)
ii) 25. Qe4 Qxe4+
iii) 25. Re7 Rxe7+
iv) 25. Kf4 g5+ 26. Kf5 Qxf3#
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| | Apr-05-11 Judit Polgar vs Kaidanov, 2010
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knight knight: White to play, pawn down.
This took me a while. I first thought 36. Qd5, but couldn't see how white could continue after 36...Qc3. Then I switched to 36. Qd6! If black captures 36...Qxd6 or 36...Qxg5 then 37. Rh8+ Kg7 38. R1h7#. If 36....Rc5/e7/e8 simply 37. Qxe5 Rxe5 38. ...
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| | Apr-03-11 I Sokolov vs G Mohr, 1993
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knight knight: White to play, material even.
21. Rh8+ is the first move I see, since if 21...Kxh8 22. Qd4+ Kg8 23. Bxg4 winning. So 21...Kf7. Now 22. Qe3. If 22...exf3+ 23. gxf3 Qf5/g5 24. Qe8+ looks like problems for black. Thus 22...Qf5/g5 23. Rch1 with 24. R1h7+ threat.
I can't see any ...
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