Author: Miguel A. Ballicora
Date: 10:05:31 08/01/02
Go up one level in this thread
On July 31, 2002 at 09:58:16, Gian-Carlo Pascutto wrote: >The problem with a positional testsuite is often that it's hard >to verify the correctness of the answers. The positions below >are from recent books about positional chessplay. They come out >of analysis by Grandmasters, and, as far as I could verify, >are checked with computers. > >Still - no guarantees they are all correct. But this should be >fun nonetheless. The full analysis is not includede because of >copyright reasons, but I've very briefly indicated the main idea >behind each move. Feel free to indicate your results. Thnks, Many of these positions are classics. I can see Polugaievsky, Karpov, Anand, Petrosian and Fischer (or Dvoretsky in the Ruy Lopez exchange since he copeid him!) etc. Some are from the opening theory (Chigorin) etc. However there are some that I do not know. What books did you take these positions from? I guess that at least one of them must have been Dvoretsky's, but the others? You can also give the name of the players if you do not want to give analysis or how the game continued. I included few comments after the positions. Regards, Miguel >[D]r3kn1r/pp2bpp1/2p1bn1p/q2p4/3P3B/2NBP2P/PPQ1NPP1/1K1R3R w kq - 0 1 >f3 - central pawnroller >[D]2kr2nr/ppp2ppp/2b1pq2/8/1b1PP3/2NBBPP1/PP5P/R2QK2R b KQ - 0 10 >Ba5 - big pawn centres This is the theory of the Chigorin Defense (d4 d5/ c4 Nc6) >[D]2rq1rk1/pb3ppp/1p2p3/n7/3PP3/3B1N2/P2Q1PPP/3RR1K1 w - - 0 6 >d5 exd5 e5 - piece activity Polugaievsky-Tal? >[D]r1bqr1kb/pp5p/4ppp1/2pPP3/2P2P2/8/P2QB1PP/1RB1K2R w K - 0 16 >f5 - cramping black >[D]1r2q1k1/p1rn3p/1pp1pp2/P2n4/1P1P4/Q4N2/5PPP/2RR1BK1 w - - 0 1 >b5 - minority attack/minor advantages >[D]r2q1rk1/pppnb1pp/8/3P1p2/N1PQ4/8/PP2B1PP/R4RK1 b - - 0 1 >b5 - crippling majority >[D]r3rbk1/1bqn1ppp/pp1ppn2/8/2PNP3/2N1BP2/PP1Q2PP/2RR1BK1 w - - 0 1 >b4 - activating majority >[D]r1bq1rk1/1pp1bppp/p1p5/2n1P3/3N4/2N5/PPP2PPP/R1BQR1K1 b - - 0 1 >f5 - blockading to restrict activity This move is amazing. My memory is failing but this is a game from Kotov or Smyslov. >[D]r2qr1k1/pp3pbp/n5p1/2pP1b2/2Q1nB2/2N2N2/PP2BPPP/3R1RK1 w - - 0 1 >Nb5 - covering d6 (preventing blocade) >[D]r3k2r/pp1bb1pp/1q2pn2/3pB3/1P6/2PB4/P4PPP/RN1Q1RK1 w kq - 0 1 >Nd2 - controlling central squares >[D]r3k2r/pppqnppp/2n1b3/3p4/3P1B2/2PB1N1P/P1P2PP1/R2Q1RK1 b kq - 0 1 >f6 - restricting piece play >[D]3r2nr/1kp3pp/pp1bbp2/P1p5/4P3/1NN1BP2/1PP3PP/R2R2K1 w - - 0 1 >e5 - quick development and open lines for knight pairs This is tactical, I think, a great idea by Fischer in the RL exchange. >[D]r2qnrk1/p2p3p/bpn1p1p1/5p2/2PPPP2/P2BB1N1/6PP/R2Q1RK1 b - - 0 2 >d5 - exposing weak squares Yusupov? - Karpov. Actually, it is playing against the Be3 too and creates weaknesses in all light squares. KArpov showed that in the nimzoindian Samisch it is possible to play against the Be3 when traditionally black plays against the Bd3. (with pawns in d6 c5 e5). >[D]1r2k2r/4bpp1/p2pbN1p/1p2p3/4P1P1/P3BP2/1PPq3P/1K1R1B1R b k - 0 2 >gxf6 - very deep weakness in white pawn structure It shows that the worst pawns are the "rigid" ones (g4) that can be attacked. This is an Anand game? >[D]1r2k2r/4bp2/p2pbp2/1p2p3/4P1P1/P3B3/1PPR3P/1K3BR1 b k - 0 5 >Bc4 - bad bishops protect good pawns >[D]2r3k1/pbqrbppp/1pn1pn2/6B1/3P4/P1NQ1N1P/BP3PP1/3RR1K1 w - - 0 1 >d5 - breakthrough in IQP >[D]8/p1p1bp2/1p2k1np/3bP3/2p1NP2/P1P1KN1P/1P5B/8 b - - 0 1 >c5 - restricting Nf3 >[D]8/p3bp2/1pb1k2p/2p1P3/2p1NP2/P1P1K2P/1P3B2/8 b - - 0 6 >Bd7 - king->d5 bishop->f5 (restriction) >[D]r2qr1k1/1pp2ppp/p1nb1n2/8/P2Pp3/4P1N1/1P1B1PPP/R2QNRK1 b - - 0 1 >Bxg3 - minor piece issues >[D]r2qr1k1/1pp2ppp/p1n2n2/8/P2Pp3/4P1P1/1P1B1PP1/R2QNRK1 b - - 0 2 >Ne7 - ->d5 >[D]2r2rk1/pp1q1ppp/4p3/2Pp4/3Q4/P1R1PP2/1P3P1P/5RK1 b - - 0 1 >e5! - activating rooks (tactically visible) >[D]1rb2rk1/2q2pbp/pp1p2p1/P1pPp2P/2P1P1n1/2N5/1PQBBPP1/R3K2R w KQ - 0 1 >Ra3 - 'radical rook' transfer to kingside >[D]r2qrbk1/1b1n1pp1/5n1p/1p1ppN2/1Pp1P2N/PB1P2RP/5PP1/R1BQ2K1 b - - 0 8 >Kh7 - defense >[D]r2qrb2/1b1n1ppk/5n1p/1p2pN2/1PppP2N/P2P1QRP/2B2PP1/R1B3K1 b - - 0 10 >Ra6 - 'radical rook' defense >[D]r2qk2r/ppp2p2/3p1n1p/5bp1/1bPQ3P/2N3B1/PP2PPP1/2R1KB1R b Kkq - 0 1 >Kd7 - defense with king in center Is this a Botvinnik game? >[D]q2r4/r4pk1/2Rbp1pp/pQ1p4/Pp1P4/1N2P1P1/1P3P1P/2R3K1 w - - 0 1 >Kf1 - king acitivity for breakthrough on queenside The king goes all the way to the queen side to be protected and then to break on the King Side. This is a famous game by Alekhine or Petrosian. I believe that "King marches" are the most difficult positional manouvers for computers. >[D]8/1prrkbp1/p1p1pp2/P1P5/2BPP2P/4KP2/1R6/1R6 w - - 0 3 >e5 - fixing/manouevering against weaknesses >[D]r1bq1rk1/2pn2bp/3p2p1/1N1Ppp1n/1P2P3/2N1BP2/2BQ2PP/2KR3R w - - 0 1 >Kb2 - safe because of space >[D]1r3r2/p1npqpkp/1pb1p1p1/8/2PRP3/2N3P1/PPQ2PBP/5RK1 w - - 0 1 >e5 - increasing pressure on backward pawn (not Rfd1) >[D]r2q1rk1/3b1pbp/p2p2p1/1ppP4/P3PP2/2N2QN1/1P4PP/R4R1K w - - 0 1 >e5 - breakthrough > >-- >GCP
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