patzer2 Member since May-20-03 · Last seen Feb-01-15 A former class A player almost 20 years ago, I'm returning to chess as a hobby in retirement. Spending more time studying end games and middle games than openings now. I may try playing in tournaments again later, but for now I like the challenge of analyzing and trying to understand the subtlties of strong Master games.

patzer2 has kibitzed 13374 times to chessgames   [more...]

Feb-01-15 L Dominguez vs E Mortensen, 2002    patzer2: Referencing my post about 29...Qd8 from 2005: Computer Chess programs, including my slightly dated version of Fritz, have gotten stronger over the last 10 years. After 29... Qd8 30. Rxd8 Rxd8 31. Qxe7 Rd1 (diagram below) [DIAGRAM] Fritz 12 finds 32. c3! (perhaps the most difficult ...      Feb-01-15 B Adhiban vs Nakamura, 2015    patzer2: GM Nakamura enters an opening line that the computers initially under estimate. For example, after 9...e6 Fritz 12 at lower indicates White has a strong advantage with 10. f3!? (+1.20 @ 17/40 depth). However, after the search gets deeper the illusory advantage for 10. f3 (diagram ...      Jan-31-15 E Sobernheim vs S Langleben, 1895    patzer2: Mistakenly beliving it's "White to move" (diagram below), [DIAGRAM] I picked 17. g4!? which is Fritz's first choice (i.e. if White's move) . However, it's (17...?) Black (not White) to move, with a brilliant 17...Qa3+!! ...      Jan-30-15 Nakamura vs N Grandelius, 2015    patzer2: Wasn't quite sure why Back resigned. However, Fritz's analysis shows it's indeed hopeless for Black. In the final position, Fritz indicates strong play might continue 35...Bc7 36. f5 Qe8 37. Rxe7 Qxe7 38. fxg6 f6 39. Nf7 Kg7 40. Nd6 Bxd6 41. cxd6 Qd7 42. e4 b6 43. Kf2 a5 44. bxa5 ...      Jan-30-15 Sax vs Ehlvest, 1988   patzer2: As <Sally Simpson> observes, in our Friday puzzle position (20. ?) White has a mate threat prepared, but the Pawn on f5 and the Queen on a4 are interfering with this plan. I saw the threat 20. Qg5? g6! 21. Qh6 Qf4+! 22. Qxf4 exf4      Jan-29-15 Tata Steel (2015)    patzer2: <Sally Simpson> Thanks for the teaching tips!      Jan-29-15 Bergell / Neumann vs Knorre / Cordel, 1865    patzer2: Correction: It was a Wednesday puzzle I missed with the 14. Bxe6? mistake. Thought it was after midnight EST when I posted, but I guess not.      Jan-29-15 Mamedyarov vs T Nyback, 2005    patzer2: Missed this Thursday puzzle, finding nothing better than the quiet 44. Qd5 which fizzles out to equality after 44. Qd5 Bb7! 45. Qc4 (not 45. Qxb7?? Qxb3#) 45...Be4 =. Looked at 44. Rd8! but thought too quickly that 44...Qxe5 ended the mate threat. However, I should have looked ...      Jan-29-15 A Giri vs W So, 2015    patzer2: Out of the opening and into the middle game some missed opportunities and improvements from GM Gustafsson's analysis are: 27. Qh5! when play might go f5 28. Qf3 h6 29. Rc6 Qd7 shortening the game. 30... h5! when play might go      Jan-28-15 D Marholev vs A Baryshpolets, 2014   patzer2: The self-pin 26. Rc1?! allowing Black to win a pawn with 26...Nxb6 and may have been the decisive turning point in the game. Black's clear and final decisive passed pawn combination begins with 43...Qxc5!, which might make for

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