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CharlesSullivan
Member since May-05-08 · Last seen Aug-19-18
I had a chess analysis website (TrueChess.com) for about 10 years until 2017. Now, with improved software (Stockfish 9) and improved hardware (AMD Threadripper 1950X with 16 cores and 32 GB of memory), some of those chess positions that were inpenetrable 10 years ago can be solved (maybe).

   CharlesSullivan has kibitzed 183 times to chessgames   [more...]
   Aug-19-18 Fischer vs Spassky, 1972 (replies)
 
CharlesSullivan: <Howard>. Good to be back. Chess analysis got interesting again thanks to the big powerful computers and the amazing software programs!
 
   Feb-01-13 Robert E Byrne vs Fischer, 1963 (replies)
 
CharlesSullivan: <AylerKupp> Yes, I looked at the kingscrusher video a couple of months ago. Actually, his analysis got me thinking that there was more going on in the position at moves 14 & 15 than I had previously thought.
 
   Dec-11-12 Capablanca vs Tartakower, 1924 (replies)
 
CharlesSullivan: The posting by <Peligroso Patzer> of May-06-12 is a good summary of why 36...a6 does not save the game for Black. And <erniecohen> is right to insist on Jan-10-12 that 33...Nd1 would have drawn. Letting Houdini 1.5a run for 42 hours to a depth of 40 shows White ...
 
   Sep-07-12 McDonnell vs La Bourdonnais, 1834 (replies)
 
CharlesSullivan: In the game, White could have drawn with <Game position after 24...exf3 25.Rc2 Qe3> [DIAGRAM] 26.Rf2! Kasparov does not mention 26.Rf2 in My Great Predecessors (published 2003), and Nunn/Burgess/Emms do not mention 26.Rf2 in The World's Greatest Chess Games until ...
 
   Sep-06-12 Keres vs Szabo, 1955 (replies)
 
CharlesSullivan: Despite the praise for 18.Rxd7, Black can draw: after 18...Bxd7 19.Bd3 < John Nunn says "There is no defence" in this position, BUT ... > [DIAGRAM] Szabo could have played 19...Rb4!!! and Black holds; for example: 20.Qg5 g6 21.Qf6 Rxb2!!! < Black's counter rook ...
 
   Jul-06-12 Rubinstein vs Capablanca, 1911 (replies)
 
CharlesSullivan: I now believe that 38...Rxa2 will not save Black (despite my analysis of July, 2009). After upgrading to an Intel i7-3930K (6 cores @ 4.4GHz) and adding an SSD with 145GB of endgame tablebases, I chose this position to analyze for about a month. A sample White win is 39.Rh8 ...
 
   Jul-04-12 Fischer vs M Fox, 1956 (replies)
 
CharlesSullivan: As <SereneThought> has pointed out, Fischer could have won with 21.Be3!! Black is lost no matter what he plays, but a stiff resistance is offered by 21...Ne6 22.Rad1 Qc7 23.Rf3 [DIAGRAM] 23...Rd8 ( < or 23...Nf4 24.Bxf4 Bxf5 25.Bg5! Bxg4 26.Qxg4 wins > ) ...
 
   Aug-26-11 Tal vs Hjartarson, 1987 (replies)
 
CharlesSullivan: <Pawn and Two> I do have the English version of the New York 1927 tournament. Even before I got the book, I had analyzed about half the games. (I'll get around to the rest of the games one of these days.) The quality of Alekhine's analysis is about the same as his ...
 
   Apr-08-11 Gelfand vs Shirov, 1993 (replies)
 
CharlesSullivan: As <parmetd> has pointed out, a crucial variation occurs in the game at move 32: [DIAGRAM] 32...Qh7 33.Qe8+ Qg8 34.Qh5 Bb6 35.Bg5+ Qh7 36.Bf6+ Kg8 37.Qg4+ (although <parmetd> gives 37.Qg5, I think he means 37.Qg4+) 37...Kf7 38.Rxc5 Bxc5 39.Qxe6+ Kf8 40.Nf5 Rc7 ...
 
   Aug-23-10 Saemisch vs Alekhine, 1936 (replies)
 
CharlesSullivan: <Pawn and Two:> A beautiful discovery!!
 
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