Author: Anthony Cozzie
Date: 06:13:23 02/02/04
Go up one level in this thread
On February 02, 2004 at 07:02:45, Vasik Rajlich wrote: >On February 01, 2004 at 21:41:10, Anthony Cozzie wrote: > >>Round 1: Hossa - Zappa 0-1 >> >>Zappa's first game was against Hossa. Hossa is an engine that can be very >>dangerous on any given day, and this day was no exception. The opening featured >>Zappa with more rapid development and hossa with the central pawn mass. On move >>18 Hossa sacrificed a pawn with h5?! Qxa2 >> >>[D]2r2rk1/p3ppbp/1p4p1/n2q4/3P1P1P/3BPP2/P7/1RBQK2R w K - 0 18 >> >>But for some reason it failed to play Rb1-b2-h2 to follow up the attack. Zappa >>then sacrificed its a pawn for activity with 27 .. b5!? >> >>[D]5rk1/4p1bp/1p1q2p1/p1rP4/Q3BP2/3RPP2/5K2/7R b - - 0 27 >> >>Hossa blundered after b5 Qxa5 Rd2 Kg3?? and lost soon afterward. >> >>Round 2: Zappa - Frenzee 1-0 >> >>Zappa played 1.d4 and got a pretty good position. The book said that White had >>7 wins and 14 draws at move 10, so I was feeling good. Zappa rapidly built up a >>big center, but then decided to give it all away with 18 e5? >> >>[D]r2bqr1k/1bp3pp/1p1ppp2/p1nPP3/2PQ1P2/2N2NP1/PP4BP/2R2RK1 b - - 0 18 >> >>It turned out that Frenzee's pieces were better placed, but the position was >>still sharp. Around move 40 both agreed that Frenzee was over a pawn up, but >>Frenzee blundered with 41. Qc3? and suddenly Zappa had a sharp attack. Zappa >>got a rook for two pawns and won soon after. >> >>Round 3: Hiarcs - Zappa 0-1 >> >>This was a Sicilian. Hiarcs did not push especially hard for an advantage, and >>Schroer commented that 9. Nxc6 probably dissipated White's advantage. Zappa was >>able to get the standard Sicilian break d5 in, and it looked equal, when Hiarcs >>blundered with 14. Qe2 instead of Rad1. Quite frankly the tactics in this >>position are beyond me, but apparently Re8 somehow creates a double threat on >>the e3 bishop and the h2 pawn. >> >>[D]r2r2k1/ppq1bppp/2b1pn2/3P4/2B5/P1NQBP2/1PP3PP/R4RK1 w - - 0 14 >> >>After 14. Qe2?: >> >>1... e6xd5 2. Nc3-b5 Bc6xb5 3. Bc4xb5 Be7-c5 4. Be3-f2 Qc7-b6 5. b2-b3 Bc5xf2 6. >>Rf1xf2 Qb6-c5 7. b3-b4 Qc5-c3 8. Qe2-e1 Ra8-c8 9. Rf2-d2 >> = (0.34) Depth: 15/25 00:08:13.57 418123kN >>1 ...e6xd5++ >> + (0.59) Depth: 16/28 00:13:11.34 671674709kN >>1... e6xd5 2. Nc3-b5 Bc6xb5 3. Bc4xb5 a7-a6 4. Bb5-a4 Be7-d6 5. g2-g3 b7-b5 6. >>Ba4-b3 Rd8-e8 7. Ra1-d1 Bd6-c5 8. Rd1-d3 Qc7-e5 9. Rf1-e1 >> = (0.87) Depth: 16/27 00:19:23.20 987680kN >> >>This just shows that more depth is *always* better. Maybe not alot better, but >>better. After winning a pawn Zappa never quite lost the thread of the game, and >>finally won in a Rook ending in some 80 moves. >> >>Round 4: Zappa - Crafty 1/2 >> >>This was simply a nongame. It lasted all of 10 minutes. Zappa played the >>Catalan and Crafty took a repetition draw in some 20 moves. >> >>Round 5: Thinker - Zappa 1-0 >> >>Zappa played the TMB QGD (where Black plays b6 and Bb7, finachettoing the QG). >>The big theme of Zappa in this tournament is not understanding pawn structure, >>and here it played c5 c4, making its queenside pawnstructure very weak. Thinker >>won a pawn and eventually the game. Sitting through this game took at least 5 >>years off my life due to nervous stress. >> >>Round 6: Zappa - Falcon 1-0 >> >>This was a Ruy where Zappa came out of book at +0.5 Zappa got a strong passed >>e5 pawn, Falcon gave up the exchange for it, and Zappa won. Pretty much a book >>win. >> >>Round 7: Yace - Zappa 1/2 >> >>Another nailbiter. Not having had enough punishment the first time, zappa again >>goes for a TMB. It again pushes the c pawn. It again loses a pawn. I think >>Yace blundered with 24 Nxd5, when Bxd5 would have been clearly winning. Zappa >>eventually got a RB v RPPP ending which Yace couldn't quite manage to win. >>Another 5 years off my life. >> >>Round 8: Zappa - Searcher 1-0 >> >>This was my favorite game of the whole tournament, although there are those who >>say I am biased :) Zappa played a London opening and made a positional mistake >>with fxg3, once again proving it doesn't understand pawnstructure. Searcher won >>a pawn, but Zappa was still up in development, and Searcher blundered badly with >>22 ... Nd6?? (f5 looks much better) >> >>[D]r1b2rk1/pp3ppp/3n4/P1qp4/2pN1Q2/2P3PP/1PB3PK/R4R2 w - - 0 23 >> >>A few moves later Zappa was able to get a tactical win with Re6! >> >>[D]1rb2rk1/4R1p1/1pqn1pBp/3p4/5Q2/1NP3PP/6PK/4R3 w - - 0 30 >> >>1. Re1-e6 Bc8xe6 2. Nb3-d4 Qc6-c4 3. Qf4xd6 Be6xh3 4. Kh2xh3 Kg8-h8 5. Nd4-e6 >>Rf8-g8 6. Qd6-d7 Qc4-c8 7. Qd7xd5 Rb8-a8 8. Qd5-f5 >> = (3.58) Depth: 15/23 00:03:03.90 174729471kN >> >>Round 9: Zappa - Ruffian 1-0 >> >>Zappa-Ruffian was a complicated semi-closed game. Ruffian was able to get a >>decisive advantage by pushing its Kingside pawns, something Zappa never likes to >>do. Once again Zappa's lack of pawn knowledge led to a horrible position: in >>the diagram Zappa's bishop on h2 is worthless and Ruffian has two bishops for a >>rook and pawn, not to mention its outside passer. >> >>[D]6k1/1R3b2/p5n1/q2p2b1/2pP1p2/2P5/1QP2PPB/6K1 w - - 0 36 >> >>Nevertheless, Zappa soldiered on. I'm not sure where Ruffian's advantage >>dissipated, at move 90 it played Kg7 with a draw score. Apparently its forward >>pruning missed something, because Zappa played g5! and the counterattack began. >>(Bxg5 Ra5 Bf6 Ba3 Bxc3 Rxd5, although its better than what ruffian played in the >>game). >> >>[D]8/6k1/R7/2Bb4/2p2pPb/2P2P2/6K1/2n5 w - - 0 91 >> >>Ruffian's knight proved out of place and Zappa ended up with R for N, which it >>converted into the point in some 100 moves. Maybe I shouldn't make fun of Uri >>for his long games :) >> >>Tiebreak games: >> >>Zappa got two bad booklines vs crafty and was crushed. >>Against Hiarcs it managed 1 win and one loss. >> >>Summary: >> >>All in all Zappa was very lucky. It had lost positions vs Frenzee, Yace, >>Searcher, and Ruffian. But, as IM Schroer said to me last CCT, its better to be >>lucky than to be good. >> >>anthony > >Congratulations! It would be interesting if you could figure out how Zappa could >outcalculate Hiarcs and Ruffian in the critical positions. Does it look like a >case of bad pruning? > >Anyway, good luck with Zappa. > >Cheers, >Vas I think that pruning can be better, but it takes *years* to get it right, and even then you occaisionally lose out. anthony
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.