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patzer2
Member since May-20-03 · Last seen Nov-19-17
A former class A player over 25 years ago, I'm returning to studying chess as a hobby in retirement. Spending more time on end games and middle game tactics 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.
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   patzer2 has kibitzed 16062 times to chessgames   [more...]
   Nov-19-17 M Boe vs Jobava, 2007 (replies)
 
patzer2: <5hrsolver> Your alternative follow-up 20...Bc5+! -+ (-9.97 @ 32 ply, Stockfish 8) is forcing enough. The only way Black can significantly delay the mate is by surrendering the Queen with 20...Bc5+ 21. Qxc5 Nxc5 -+.
 
   Nov-19-17 S Fenil vs S Prathamesh, 2008
 
patzer2: Instead of 12...Bd7 allowing 13. Be4 ⩲, Black can improve in the opening with the slightly more forcing 12...g4 13. Nd4 Nxd4 14. Qxd4 Bd7 = (0.12 @ 31 ply, Stockfish 8).
 
   Nov-18-17 Korchnoi vs J L Arnason, 1987 (replies)
 
patzer2: Funny how the chessgames.com puzzle difficulty is working out for me this week. I got the Monday and Tuesday puzzles easy enough, but failed to solve the Wednesday, Thursday and Friday puzzles. Now along comes the Saturday (40...?) test, and I see 40...Rad8! at blitz speed because ...
 
   Nov-17-17 P Van der Sterren vs Ljubojevic, 1987 (replies)
 
patzer2: Black's game takes a turn for the worse with 23...Rab8 allowing 24. Nd6 ± (+0.84 @ 29 ply, Stockfish 8). Instead, 23...Bxe4 24. Bxe4 Nd5 = (+0.13 @ 31 ply, Stockfish 8) holds it about level as the "advantage of the two Bishops" is minimal for White.
 
   Nov-17-17 S Sagar vs D Mirzoyan, 2016
 
patzer2: For this week's Thursday puzzle I looked first at the obvious 16. Bxh6 gxh6 17. Qxh6, but after 17...Ng5 I didn't see or even consider the decisive Rook lift 18. Rb5! +- which obliterates Black's defenses. So instead, I tried a prepatory move with 16. h4. Unfortunately for me, after
 
   Nov-15-17 D Harika vs Kramnik, 2017
 
patzer2: According to our Opening Explorer , instead of 11. e4 White has had more success with 11. Ne1 = to ⩲ as in White's win in Bologan vs Ponomariov, 2012 .
 
   Nov-15-17 J Brenninkmeijer vs A Pieniazek, 1987 (replies)
 
patzer2: Missed the strong mating attack with 33. Rxa7! in today's Wednesday puzzle (33. ?) because after 33. Rxa7! Qxa7 34. Qg6+ Kf8 I failed to see that 35. f7! +- (mate-in-five, Stockfish 8 @ 16 ply) forces a quick mate. Instead I went for the second best move 33. Qg3+, which according to
 
   Nov-15-17 C Cruz vs M Ratsma, 2012
 
patzer2: Instead of 21...Rd3? allowing 22. Nc1 +- (+2.36 @ 23 ply, Stockfish 8), Black should play 22...Rxb2 = (0.00 @ 26 ply, Stockfish 8).
 
   Nov-15-17 R Markus vs N Djukic, 2017
 
patzer2: Instead of 21...Nd7?, Black should play 21...h6 = (0.16 @ 21 ply, Stockfish 8).
 
   Nov-14-17 L Schandorff vs T Willemze, 2016 (replies)
 
patzer2: <Once> Technically, I suppose 27. Rxb6! is an "overloading" or "overworked piece" tactic which exploits the fact that the Bishop on d8 cannot simultaneously protect the Knight on b6 and guard against a royal fork on e7. However, I still like your PPP for helping novices learn ...
 
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