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Eduardo Leon
Member since May-02-07
These are the three pillars of my life: math, music and chess.

   Eduardo Leon has kibitzed 1012 times to chessgames   [more...]
   Mar-01-21 V Nadtocheev vs Krogius, 1962 (replies)
Eduardo Leon: I went for <35.Nf6> directly. Black's disgrace is that 1. He cannot take the knight: <35...gxf6 36.Qxh7+#> 2. He cannot take the queen: <35...Rxf7 36.Rxh7+#> 3. Advancing the h pawn still allows mate: <35...h6 36.Rxh6+ gxh6 37.Qh7+#>
   Jan-05-21 Carlsen vs Aronian, 2020
Eduardo Leon: 43.f4+ and 44.♖xh3, of course.
   Jan-05-21 M Lodhi vs G Milos, 1988 (replies)
Eduardo Leon: I fail to comprehend why 39...♗d5+ was not played.
   Dec-30-20 A Kovchan vs A Moiseenko, 2002 (replies)
Eduardo Leon: Of course, 51...♕g3+ 52.♖xg3 hxg3 53.♔xg3 ♖h3+, and now white merely gets to choose where he gets mated. A) 54.♔g4 ♖8h4+ 55.♔f5 ♖f4+ 56.♔g5 f6# B) 54.♔g2 ♖h2+ B.1) 55.♔g3 ♖8h3+ 56.♔g4 ...
   Aug-26-20 D Anton Guijarro vs M L Acosta, 2013 (replies)
Eduardo Leon: The first move is reasonably easy to see: 28.♖xe8, threatening the deadly 29.♗e6+ ♔h8 30.♖h1 and mate next move. Thus black does not have enough time to take the queen with 28...♘xa5, and must play 28...♖xe8 instead. But then 29.♕a4 ...
   Aug-21-20 Yusupov vs K Spraggett, 1989 (replies)
Eduardo Leon: White would like to play 37.♗f5+. Then 37...exf5 38.g6+ ♔h6 39.♖h8# is mate. However, 37...g6 stops the attack. Thus white plays 37.g6+ first. Capturing the pawn leads to the fastest mate: 37...♔xg6 38.♗f5+ ♔h6 39.♖h8#. But not ...
   Aug-05-20 Areshchenko vs A Volokitin, 2004
Eduardo Leon: <goodevans: You should check your own post from 11 years ago!> Oh, well. I am a much weaker player than 11 years ago, sadly.
   Jul-09-20 K Richter vs L Abramavicius, 1930 (replies)
Eduardo Leon: Apologies. In the first line, 22.♘f6 does not give check.
   Jan-28-20 M Fierro vs O Zimina, 2006
Eduardo Leon: How did white manage NOT to win this?
   Jan-01-20 Flohr vs I Koenig, 1929 (replies)
Eduardo Leon: After thinking for a while, I found 40.♖c7. The threat of 41.♕b6+ is so strong that black is forced to play 40...♖xd6 41.♖xc8+ ♕xc8 42.♕xd6+. Not only is white a piece up. Also, the black king's position is precarious, and he cannot bring his
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