Author: Gabor Szots
Date: 00:03:50 01/19/06
Go up one level in this thread
On January 18, 2006 at 22:25:16, Rick Hagen wrote:
>After the moves:
>
>[Event "10"/1"]
>[Site "Netherlands"]
>[Date "????.??.??"]
>[Round "?"]
>[White "New game"]
>[Black ""]
>[Result "*"]
>[PlyCount "35"]
>
>{512MB, Power2004.ctg, P4 3Ghz XP-Home GUI9} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.
>Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5 9. Bxf6 gxf6 10. Nd5 f5 11.
>exf5 Bxf5 12. Qf3 Nd4 13. Nc7+ Qxc7 14. Qxa8+ Ke7 15. c3 b4 16. cxb4 Qb6 17.
>Bxa6 Qxb4+ 18. Kf1 *
>
>We reach the following position:
>[D]Q4b1r/4kp1p/B2p4/4pb2/1q1n4/N7/PP3PPP/R4K1R b - - 0 18
>
>I found 23 games in my DB.
>The following moves were played:
>18...Qd2 18x
>18...Qxb2 4x
>18...Kf6 1x
>
>Black scored pretty well with Qd2: 12/18
>Qxb2 scored 50%
>
>The idea of Qd2 instead of Qxb2 seems to be to prevent white exchanging queens..
>
>However, after letting Fritz 9 ponder over this position in multi-PV mode, it
>came up with 18...Bh6!!
>
>Analysis by Fritz 9: (Depth 16, after 10 min.)
>P4@3Ghz
>Hash 512MB
>
>1. -+ (-1.52): 18...Bh6 19.Qxh8 Qxb2 20.Re1 Qxa3 21.Rxe5+ dxe5 22.Qxe5+ Ne6
>23.Qe2 Kf8 24.Kg1 Nf4 25.Qc4 Be6
>2. µ (-0.73): 18...Qxb2 19.Qb7+ Qxb7 20.Bxb7 d5 21.Rd1 Kd6 22.Ba6 Kc6 23.Nb1
>Bc2 24.Re1 Rg8 25.a4
>3. ³ (-0.30): 18...Qd2 19.h3 Bd3+ 20.Bxd3 Qxd3+ 21.Kg1 Bh6 22.Qb7+ Kf6 23.g3
>Rg8 24.h4 d5 25.Qb6+ Kg7 26.h5 Qf3 27.Rh3
>
>(Hagen, Netherlands 19.01.2006)
>
>So, what do other engines think about 18..Bh6 ?
>
>Regards,
>RH
Analysis by Hiarcs 10:
18...Qxb2 19.Qb7+ Qxb7 20.Bxb7 Bh6 21.h4 Bd3+ 22.Kg1 Rb8 23.Bd5
± (0.75) Depth: 8/22 00:00:00 85kN
18...Qxb2 19.Qb7+ Qxb7 20.Bxb7 Bh6 21.h4 Bd3+ 22.Kg1 Bf4 23.Rh3 Bf5 24.Rh1
± (0.72) Depth: 9/26 00:00:01 205kN
18...Bh6
± (0.71) Depth: 9/26 00:00:02 356kN
18...Bh6
² (0.50) Depth: 9/26 00:00:02 372kN
18...Bh6 19.Qa7+ Kf6 20.Bc4 d5 21.Qa6+ Kg7 22.Bxd5 Qd2 23.Bc4
² (0.44) Depth: 9/26 00:00:02 448kN
18...Bh6
² (0.69) Depth: 10/28 00:00:04 624kN
18...Bh6 19.Qa7+ Kf6 20.Bc4 d5 21.Qa6+ Kg7 22.Bxd5 Qd2 23.Bc4 Rb8 24.Kg1 Rxb2
² (0.69) Depth: 10/28 00:00:04 660kN
18...Qxb2
² (0.68) Depth: 10/28 00:00:04 792kN
18...Qxb2 19.Qb7+ Qxb7 20.Bxb7 Bh6 21.h4 Bd3+ 22.Kg1 Bf4 23.g3 Rb8 24.Bd5 Rg8
² (0.64) Depth: 10/28 00:00:05 860kN
18...Qxb2
² (0.39) Depth: 11/32 00:00:09 1656kN
18...Qxb2 19.Qb7+ Qxb7 20.Bxb7 d5 21.Rc1 Bd3+ 22.Ke1 Kf6 23.Nb1 Bb4+ 24.Nd2 Rd8
= (0.20) Depth: 11/32 00:00:10 1833kN
18...Bh6
= (0.19) Depth: 11/32 00:00:11 1969kN
18...Bh6 19.Qa7+ Kf6 20.Bc4 d5 21.Qa6+ Kg7 22.Bxd5 Qd2 23.Bc4 Rb8 24.Kg1 Nf3+
25.Kf1
= (0.19) Depth: 11/34 00:00:12 2153kN
18...Bh6
= (-0.06) Depth: 12/34 00:00:18 3074kN
18...Bh6 19.Qa7+ Kf6 20.Bc4 d5 21.Qa6+ Kg7 22.Bxd5 Qd2 23.Bc4 Rc8 24.h4 Rc6
25.Qa4
³ (-0.26) Depth: 12/35 00:00:22 3693kN
18...Bh6 19.Qb7+ Qxb7 20.Bxb7 Bd3+ 21.Ke1 Rb8 22.Rd1 Nc2+ 23.Nxc2 Bxc2 24.Rd2
Bxd2+ 25.Kxd2 Ba4 26.Bd5 Rb5 27.Bc4 Rxb2+ 28.Ke3
³ (-0.34) Depth: 13/38 00:00:37 6136kN
18...Bh6 19.Qb7+ Qxb7 20.Bxb7 Bd3+ 21.Ke1 Rb8 22.Rd1 Nc2+ 23.Nxc2 Bxc2 24.Rd2
Bxd2+ 25.Kxd2 Bf5 26.Bd5 Rxb2+
³ (-0.40) Depth: 14/43 00:01:09 11476kN
18...Bh6 19.Qb7+ Qxb7 20.Bxb7 Bd3+ 21.Ke1 Rb8 22.Rd1 Nc2+ 23.Nxc2 Bxc2 24.Rd2
Bxd2+ 25.Kxd2 Ba4 26.Bd5 Rb5 27.Be4 Rxb2+ 28.Ke3 Rxa2 29.Bxh7
³ (-0.41) Depth: 15/43 00:02:53 28911kN
So HIARCS does not want to capture the h8R. When forced:
19...Qxb2
µ (-0.77) Depth: 10/31 00:00:00 84kN
19...Qxb2 20.Rd1 Qxa3
µ (-0.77) Depth: 10/31 00:00:00 115kN
19...Qxb2 20.Rd1 Qxa3 21.Bc4 Qc3 22.Bd5 Bd3+ 23.Kg1 Ne2+ 24.Kf1 Nf4+ 25.Kg1 Nxd5
26.Qa8 Nf4
µ (-0.76) Depth: 11/31 00:00:02 434kN
19...Qxb2
µ (-1.01) Depth: 12/34 00:00:06 1287kN
19...Qxb2 20.Re1 Qxa3
µ (-1.24) Depth: 12/35 00:00:12 2525kN
19...Qxb2 20.Re1 Qxa3 21.Rxe5+ dxe5 22.Qxe5+ Ne6 23.Qe2 Kf6 24.Kg1 Nf4 25.Qc4
Be6 26.Qd4+ Kg6 27.Bb5 Qxa2
µ (-1.07) Depth: 13/39 00:00:25 5079kN
19...Qxb2 20.Re1 Qxa3 21.Rxe5+ Ne6 22.Bb5 dxe5 23.Qxe5 Qxa2
µ (-1.31) Depth: 14/41 00:01:19 15835kN
19...Qxb2 20.Re1 Qxa3 21.Rxe5+ Ne6 22.Bb5 dxe5 23.Qxe5 Qxa2 24.Qe1 Bd2 25.Qd1
Qd5 26.Qe2 Qd4 27.Qd1
-+ (-1.45) Depth: 15/43 00:02:52 35589kN
Gábor
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