Apr-26-13 Janowski vs Lasker, 1909 
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Coigach: I didn't find this easy at all.
I spent a lot of time trying to make 28...Qh3+ work and not succeeding. I then gave up as I had previously dismissed 28...g5 thinking it just fails to 29.Kh1. I should have looked further, as 29...Qxh3+ 30.Rh2 Qxf3+ 31.Rgg2 leaves B a couple of pawns
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| | Apr-05-13 Lombardy vs Fischer, 1958
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Coigach: Marvelously instructive endgame from 55 years ago.
Thanks, <bartonlaos> for the ChessLife story.
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| | Dec-26-12 T Gelashvili vs N Mihakis, 1998
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Coigach: 22. Rxg7 is most forcing and the cleanest win. In the final position 24...Rf7 25.Qg6+ Kh8 26.ef. I only looked at 22.Nf5 which seems enough to win.
E.g. 22...Rg8 23.Rg5 Qf8 24.e7 Qf7 25.Rxh6+ gh 26.Qxh6#. But there are a few other Black 22nd moves to calculate. They all look ...
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| | Nov-18-12 O Zambrana vs I Krush, 2003
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Coigach: Patriot: <<Coigach>: How about 27...axb6 and if 27.cxb6 Qb8? The position still has all the same elements except the a5-knight is no longer hanging. I think you are right, this is fine for Black. I was thinking of 28.Nxc6 but it seems just taking the knight is good enough ...
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| | Nov-11-12 Nunn vs Sadler, 1993
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Coigach: Too subtle for me.
I thought I'd found a win with 27.Bxd6 Qa3 28.Bb5+ ab 29.Qxb5+. This seems to win but is insufficient if Black moves his King away on move 28. I didn't see the two winning key moves.
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| | Oct-19-12 G Brhlik vs F Berebora, 1995
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Coigach: I'm another one who went for 24...Nf4. It wins too, although in my analysis I missed W's best defence. I spent quite a bit of time calculating wins e.g. 25.gf Qxg2#
25.Nc4 Nxg2 26.Nxe3 de 27.Qd1 Nxe1
25.Bxb7 Rxg3+ 26.hg (26.Bg2 Rxg2+ mating) Qxg3+ but my analysis went astray after
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| | Oct-16-12 S Klimov vs A Gubanov, 1995
Oct-15-12 Speelman vs J Durao, 1978
Oct-10-12 D Zagorskis vs J Michenka, 1994
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Coigach: 29.Bd4 is a killer, offering the Q for a mating combination ...Qxe2 30.Rxg7+ Kh8 31.Rxg6+ Qe5 (31...Re5 32.Rf8#) 32.Bxe5+ Rxe5 33.Rf8#. The Black Q cannot move off the e-file other than by 29...Qb8 or else 30.Qxe8# and if 29...Qb8 30.Rxg7+ Kh8 31.Rxg6+ Re5 32.Bxe5#.
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| | Aug-26-12 Y Zherebukh vs A Shneider, 2011
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Coigach: I had 3 initial candidates - Bb5, Bxd4 & Qe4.
Looking at the last line first, I soon saw it doesn't work: 25.Nxe4 de 26.Qc3 Kxg6 and I didn't think B had done any more than escape the immediate loss. In fact he is losing e.g. 27.f5 Kxf5 28.Bxf6, but I didn't notice this as by now I
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