Author: Mike S.
Date: 17:53:51 02/10/02
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On February 10, 2002 at 19:58:24, Dan Andersson wrote: >(...) >[D]r2r2k1/pp1n1ppp/2bppq2/8/4PP2/2NB4/PPP3PP/3RQR1K w - - 0 16 >White has one really good plan. And it's a fairly unusual one for the Sicilian. >16. b4 with the plan to dislodge the knight from protecting the e5 square. And >black has oly one good reply 16... Nf8 to defend the king. 16... b6 is met by >17. Bb5 and 16. a6 is roughly the same after 17. a4. Yace 0.99.56 temporarily considers 1.b4, doesn't stick to it, but has black play Nf8 too in another variation. I think the idea is Qe1-e3-h3, which also threats e5 and Qxh7+. Later Yace thinks Black will defend that by 1...Qe7, allowing f7-f5 if I get the idea right. While I was writing this, Yace just re-issued 1.b4 after 8:46 on P3/700, 64 MB hash. Astonishing! It seems to follow exactly your description (D=Q, S=N, L=B): Engine: Yace 0.99.56 von Dieter Buerssner Position: 0 16 6.33 0:00 -0.01 1.De2 b6 2.Lb5 Lxb5 3.Dxb5 a6 4.Dd3 (201.449) 245.6 7.01 0:01 -0.02 1.De2 Dd4 2.a3 Dc5 3.Df3 b6 4.Tf2 (449.254) 259.0 7.33 0:02 -0.02 1.De2 Dd4 2.a3 Dc5 3.Df3 b6 4.Tf2 (557.262) 264.4 (...) 9.05 0:16 -0.04 1.De3 b6 2.Le2 Sf8 3.a4 Dh4 4.Sb5 d5 5.e5 (4.945.044) 294.1 9.19 0:21 -0.03++ 1.b4 b6 2.Lb5 Lxb5 3.Sxb5 Tac8 4.Sxd6 Dxf4 5.Txf4 Txc2 (6.490.345) 295.9 (...) 10.01 0:28 -0.02 1.b4 a6 2.Le2 Sb6 3.Ld3 d5 4.e5 De7 5.a3 Sc4 (8.536.719) 298.4 10.02 0:43 -0.01++ 1.De3 b6 2.Dh3 Sf8 3.Dh5 Dg6 4.Dxg6 Sxg6 5.a3 a5 (13.165.677) 301.7 (...) 12.01 7:50 +0.01 1.De3 De7 2.Lb5 a6 3.Lxc6 bxc6 4.Dd4 Sf6 5.b3 (132.429.244) 281.4 12.02 8:46 +0.02++ 1.b4 a6 2.a4 b6 3.Lxa6 Txa6 4.b5 Lxb5 5.axb5 Ta3 6.Tf3 e5 7.Sd5 Kh8 (147.536.480) 280.0 12.02 9:29 +0.16 1.b4 a6 2.a4 Sf8 3.b5 axb5 4.axb5 Le8 5.e5 dxe5 6.fxe5 Dg5 7.De4 b6 (158.772.405) 278.7 12.33 10:20 +0.16 1.b4 a6 2.a4 Sf8 3.b5 axb5 4.axb5 Le8 5.e5 dxe5 6.fxe5 Dg5 7.De4 b6 (172.045.977) 277.4 13.01 12:13 +0.16 1.b4 a6 2.a4 Sf8 3.e5 dxe5 4.fxe5 Dg5 5.Df2 Dxe5 6.Dxf7+ Kh8 7.Sb1 Db2 8.Dh5 (202.603.004) 276.3 Regards, M.Scheidl
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