Author: Uri Blass
Date: 14:30:50 08/19/01
Go up one level in this thread
On August 19, 2001 at 16:58:23, Günther Simon wrote: >On August 19, 2001 at 16:00:10, Uri Blass wrote: > >>On August 19, 2001 at 15:02:45, Gian-Carlo Pascutto wrote: >> >>>[D]rr4k1/5p2/3p2p1/3PP2p/pnP4P/qn2NR2/5PP1/1B1Q2K1 w - - 0 44 >>> >>>Rxf7!! >>> >>>Perhaps not all that hard to find, but still very very very very >>>very nice. >>> >>>-- >>>GCP >> >>What happens after Rxf7 Qc1? >>I looked at the game but gandalf did not play Qc1. >> >>Can black win by Qc1? >>I did not check it but it is a known idea to trade pieces when you have a >>material advantage. >> >>Uri > >Some short analysis I did: > >Ferret - Gandalf 5.0 [C92] >WMCCC Maastricht (2), 19.08.2001 > >1.e4 e5 2.Sf3 Sc6 3.Lb5 a6 4.La4 Sf6 5.0-0 Le7 6.Te1 b5 7.Lb3 d6 8.c3 0-0 9.h3 >Lb7 10.d4 Te8 11.Sbd2 Lf8 12.a4 h6 13.Lc2 exd4 14.cxd4 Sb4 15.Lb1 g6 16.Ta3 Lg7 >17.Sh2 c5 18.d5 Sd7 19.Sdf3 h5 20.Sf1 bxa4 21.Dxa4 a5 22.Se3 La6 23.Dd1 c4 >24.Sd2 Se5 25.Tf1 Db6 26.Kh2 c3 27.bxc3 Lxf1 28.Dxf1 Sa6 29.Tb3 Dc7 30.c4 Sb4 >31.Dd1 Sd7 32.Sef1 Sc5 33.Tf3 a4 34.Kg1 Teb8 35.Tg3 De7 36.La3 Le5 37.Te3 Lf4 >38.Tf3 De5 39.h4 Lh6 40.Se3 Sb3 41.Sdf1 Lxe3 42.Sxe3 Da1 43.e5 Dxa3 44.Txf7 Kxf7 >--[44...Qc1 45.Qxc1 Nxc1 46.Lxg6 (46.e6 Nbd3) 46...Rf8 47.Rb7 (47.e6 Rxf7 >48.Bxf7+ Kf8; 47.Rd7 a3) 47...Nbd3 48.Nf5 Rxf5 49.Bxf5 Nxe5]-- > >I just filled the English notation in the analysis line not in the whole >game...It looks pretty sure that you are absolutely right and BLACK must >have won by exchanging the Queens immediately! >But the question arises if any program is able to resist in taking the >rook sacrifice at once - I fear none. > >Günther Wrong Junior7 on a slow p200 Ferret - Gandalf [D]rr4k1/5R2/3p2p1/3PP2p/pnP4P/qn2N3/5PP1/1B1Q2K1 b - - 0 1 Analysis by Junior 7: 44...Kxf7 45.Qf3+ Kg8 46.Qf6 -+ (-3.96) Depth: 3 00:00:00 1kN 44...Kxf7 45.e6+ Kg7 46.Nc2 Qb2 47.e7 Nd3 -+ (-4.03) Depth: 6 00:00:00 25kN 44...Kxf7 45.Qf3+ Kg8 46.Qe4 Qc1+ 47.Kh2 dxe5 48.Qxg6+ Kf8 49.Qf6+ Ke8 50.Bg6+ Kd7 51.Bf5+ Kc7 52.Qe7+ Kb6 53.Qxb4+ -+ (-3.48) Depth: 9 00:00:03 477kN 44...Kxf7 45.Qf3+ Kg8 46.Qe4 Qc1+ 47.Kh2 Qxb1 48.Qxb1 Kh7 49.exd6 a3 50.Qxb3 a2 51.Nc2 Nxc2 52.d7 µ (-0.88) Depth: 12 00:01:27 14720kN 44...Qc1 45.Rf6 Qxd1+ 46.Nxd1 Nd2 47.Rxg6+ Kh7 48.Bf5 dxe5 49.Rg5+ Kh8 50.d6 Nxc4 51.Rxh5+ Kg7 52.Rh7+ Kf6 53.d7 -+ (-1.75) Depth: 12 00:01:40 16826kN Uri
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