Author: John Merlino
Date: 18:06:44 04/19/02
Go up one level in this thread
On April 19, 2002 at 17:57:46, Terry Ripple wrote: >This position is taken from an actual game: "Tseshkovsky vs Prokopchuk" (1995) > >[D]rn1qkb1r/ppp1pppp/8/3n4/2B3b1/2P2N2/PP1P1PPP/RNBQK2R b KQkq - 0 1 > >1)e4 d5 2)exd5 Nf6 3)Bb5+ Bd7 4)Bc4 Bg4 5)Nf3 Nxd5 6)c3!? >Black has to be - >extremely careful with his next move! 6)...c6 Black's best! Other moves fall >foul to White's cunning 6)c3: > >a)6)...Nb6? and 6...Nf6? both run into 7.Bxf7+ Kxf7 8.Ne5+. > >b)6)...e6? 7.Qa4+ Qd7 [or 7...c6? 8.Bxd5 and 9.Qxg4] 8.Bb5 c6 9.Bxc6 Nxc6 - > 10.Qxg4 and White has an extra pawn. (Note: Rebel Tiger 14 chooses e6?) > >( Does Tiger believe that it has enough compensation for the pawn?) > >c)...Nxc6?! 7.Qb3 Bxf3 [7...Na5 8.Qa4+ c6 9.Bxd5 wins!] 8.Qxb7! Nb6 [8...Na5?- > 9.Bb5+ c6 10.Bxc6+ Nxc6 11.Qxc6+ Qd7 12.Qxa8+] 9.gxf3 Ne5 10.Bb5+ Ned7 11.d4, > again with a healthy pawn advantage. > >d)6)...g6?! 7.Qb3 Bxf3 8.gxf3 and the b-pawn drops! > >From the actual game after White's move 6)c3 follows 6...c6 7.d4 e6 8.Nbd2 Nd7 > 9.h3 Bf5 10.0-0 Be7 11.Re1 0-0 12.Ne4 Qc7 13.Bd3 b5 14.Bd2 Bg6 15.Qb1 Rab8 > 16.Neg5 Bxd3 17.Qxd3 Bxg5 18.Nxg5 N7f6 19.a4 a6 [Not 19...bxa4?! 20.c4 Ne7 - > 21.Bc3, when the a4-pawn would soon drop!] 20.Ne4 Nxe4 21.Rxe4 Rbd8 - > 22.Bg5 Rd7 23.axb5 axb5 24.Qf3 Ne7 25.Bf4 Qb7 26.h4! Rd5 27.h5 Rf5 28.Qg4 g6 > 29.hxg6 hxg6 30.Be5?( best Bd6!)30...Rh5! 31.Qf3? (31.Bf6,playing on the weak- > dark squares, would have been more effective!) 31...f5! 32.Ree1 Nd5 -- > 33.Bd6 Re8 34.Qg3 Qh7 35.f3 g5 36.Be5 f4 37.Bxf4 Nxf4 38.Re5 Rh1+ 39.Kf2 Qc2+ > and Black wins! > > > Best regards, > Terry Chessmaster 9000 doesn't see it (on a PIII-600): Time Depth Score Positions Moves 0:00 1/3 0.35 1935 1...e6 2.d4 c5 3.Bg5 0:00 1/3 0.26 2219 1...Nc6 2.d4 e5 3.dxe5 Bxf3 4.Qxf3 Nxe5 0:00 1/3 0.24 3740 1...e5 2.h3 Bh5 3.d4 exd4 4.Qxd4 Bxf3 5.gxf3 0:00 1/4 0.60 9250 1...e5 2.Qb3 c6 3.Qxb7 Nd7 4.Qxc6 0:00 1/4 0.15 11447 1...e6 2.O-O Nb6 3.Bb5+ c6 0:00 2/5 0.25 19365 1...e6 2.d4 Be7 3.O-O O-O 4.Nbd2 0:01 2/6 0.20 43292 1...e6 2.Qa4+ Qd7 3.Bb5 c6 4.Be2 Bxf3 5.Bxf3 0:04 3/7 0.17 231737 1...e6 2.d4 Nd7 3.h3 Bf5 4.O-O Bd6 5.Bg5 0:08 3/8 0.23 536570 1...e6 2.Qa4+ Qd7 3.Bb5 c6 4.Be2 Bf5 5.O-O Nb6 0:11 3/8 0.09 705060 1...Nc6 2.d4 e5 3.dxe5 Nb6 4.Be2 Qxd1+ 5.Bxd1 O-O-O 6.Nbd2 0:21 4/9 0.21 1386520 1...Nc6 2.d4 e5 3.O-O exd4 4.cxd4 Bb4 5.Nc3 Nxc3 6.Qe1+ Ne7 7.bxc3 Bxf3 8.gxf3 0:31 4/9 0.16 2065810 1...e6 2.O-O Nd7 3.d4 Bd6 4.h3 Bf5 5.Bg5 f6 1:43 4/10 0.15 6925182 1...e6 2.Qa4+ Qd7 3.Bb5 c6 4.Qxg4 cxb5 5.d4 Nf6 6.Qg3 Nc6 7.O-O 4:18 5/11 0.16 17829370 1...e6 2.O-O Nb6 3.Be2 Be7 4.d4 O-O 5.Be3 Nc6 6.Nbd2 Bf5 However, here is the analysis after 4...e6 5.Qa4+ Qd7 6.Bb5 c6 7.Bxc6 Nxc6 8.Qxg4. CM thinks it has good compensation after either 8...f5 or 8...Nf6: Time Depth Score Positions Moves 0:00 1/3 -0.36 1743 5...Nf6 6.Qc4 O-O-O 7.O-O 0:00 1/4 -0.56 4116 5...Nf6 6.Qg3 Qd3 7.Qc7 Qe4+ 8.Kf1 0:00 2/5 -0.26 11105 5...Nf6 6.Qc4 Bd6 7.O-O O-O 8.d3 0:00 2/6 -0.33 27402 5...Nf6 6.Qa4 e5 7.d4 exd4 8.Nxd4 O-O-O 0:01 3/7 -0.15 92920 5...Nf6 6.Qa4 Bd6 7.O-O O-O 8.d4 e5 9.dxe5 Nxe5 10.Qxd7 Nexd7 0:04 3/8 -0.25 274015 5...Nf6 6.Qc4 Bd6 7.O-O O-O 8.d3 Rac8 9.Be3 0:14 4/9 -0.02 986801 5...Nf6 6.Qc4 Bd6 7.O-O O-O 8.d4 Rac8 9.Qe2 Ne7 10.Bg5 0:57 4/10 -0.07 4158641 5...Nf6 6.Qc4 Bd6 7.O-O O-O 8.d4 Rac8 9.Qe2 Ne7 10.Bg5 Ned5 1:26 4/10 -0.18 6173347 5...f5 6.Qa4 e5 7.d4 e4 8.Nfd2 Nb6 9.Qb3 Na5 10.Qd1 O-O-O 3:12 5/11 -0.11 14707890 5...f5 6.Qa4 e5 7.d4 e4 8.Nfd2 Be7 9.O-O O-O 10.Nc4 Rae8 11.Nba3 jm
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