Author: Slater Wold
Date: 06:11:20 09/03/03
Go up one level in this thread
On September 03, 2003 at 01:51:20, Uri Blass wrote: >On September 02, 2003 at 19:34:50, Slater Wold wrote: > >>On September 02, 2003 at 14:23:31, Uri Blass wrote: >> >>>I think that interesting positions is positions when there is no clear win for >>>one side by many moves. >>> >>>1)Here is a position that did not happen in my correspondence game but could >>>happen >>> >>>[D]3r1rk1/pp4pp/1n3p2/4pN2/7Q/b1P1B3/Pq3PPP/R4RK1 w - - 0 20 >>> >>>How much time does your program need to find Bh6 with a draw? >> >>Rebel 12.0 (q3) - P4 3.06Ghz - 200MB HTs >> >>00:00:00.2 -0.59 1 17 Bxb6 Qxb6 >>00:00:00.2 0.01 1 77 Qh5 Qxc3 >>00:00:00.2 -0.33 2 370 Qh5 h6 >>00:00:00.2 -0.33 2 779 Rab1 >>00:00:00.2 0.45 2 1037 Rab1 Qc2 Bxb6 axb6 >>00:00:00.2 0.58 3 2894 Rab1 Qxa2 Bxb6 axb6 >>00:00:00.2 0.67 4 11251 Rab1 Qe2 Bxb6 axb6 Rfe1 Qxa2 >>00:00:00.2 0.67 4 31274 Bh6 >>00:00:00.2 1.21 4 32849 Bh6 Qc2 Qg4 g6 Bxf8 >>00:00:00.3 -0.21 5 47782 Bh6 Rd7 Nxg7 Rxg7 Bxg7 Kxg7 Qh5 Kg8 >>00:00:00.3 0.50 5 60454 Rab1 Qxa2 Bxb6 axb6 Rxb6 Qf7 Rfb1 >>00:00:00.4 0.64 5 112112 Qg4 g6 Bxb6 Qxb6 Qc4+ Kh8 >>00:00:00.4 -0.10 6 147067 Qg4 g6 Rab1 Qxa2 Bxb6 axb6 Rxb6 Qd5 >>00:00:00.4 0.26 6 169928 Rab1 Qxa2 Bxb6 axb6 Rxb6 Rf7 Rfb1 Qc2 >>00:00:00.7 0.07 7 414375 Rab1 Qxa2 Bxb6 axb6 Ra1 Qb3 Rab1 Qxc3 >>00:00:01.6 0.34 8 1133544 Rab1 Qc2 Bxb6 axb6 Qg4 g6 Nh6+ Kh8 >>00:00:03.4 0.53 9 2779835 Rab1 Qe2 Bh6 Rf7 Bxg7 Rxg7 Nxg7 Kxg7 >>00:00:03.5 0.62 9 2858321 Qg4 g6 Rab1 Qc2 Bxb6 axb6 Qc4+ Kh8 >>00:00:05.6 0.52 10 4889928 Qg4 g6 Rab1 Qxc3 Rb3 Qa5 Bxb6 axb6 >>00:00:13.0 -0.13 11 11893522 Qg4 g6 Rab1 Qxa2 Bxb6 axb6 Rxb6 Kh8 >>00:00:20.8 0.22 11 18906143 Rab1 Qe2 h3 Rf7 Bxb6 axb6 Rbe1 Qd2 >>00:01:03.1 0.41 12 58733576 Rab1 Qe2 Rfe1 Qc4 Qxc4+ Nxc4 Rxb7 Rf7 >>00:01:21.7 0.41 12 77008033 Bh6 >>00:01:27.5 0.69 12 81518907 Bh6 Rd7 Qg4 Rff7 Rad1 Bf8 Bc1 >>00:02:06.7 0.69 13 110129864 Bh6 Rd7 Qg4 Rff7 Rad1 Bf8 Bc1 >>00:06:05.8 0.75 14 286909260 Bh6 Rd7 Rad1 Rxd1 Rxd1 Qe2 Rf1 Qc4 >> >>>Here is a position from one of my correspondence games(my opponet resigned after >>>44...Rc1+). >>> >>> >>>2)It may be interesting to see how much time programs need to find 26.Rh3(I >>>believe that 26.Rxh5 was the losing move of white inspite of the fact that >>>white's position is not good even after 26.Rh3) >>> >>>I suspect that programs may need at least some hours. >>> >>>[D]5krr/1b2qp2/pp1ppp2/2n2Pbp/P1RNP2R/2N2BP1/2P1Q2P/7K w - - 0 26 >> >>q3 didn't get this in ~15 minutes. >> >>00:10:08.9 -0.40 15 510937279 fxe6 fxe6 > >fxe6? > >I did not think that it can be good because of Bxh4 >I thought that the only alternative that programs may consider is Rxh5 > >The main line suggest that q3 even does not expect Bxh4 > >I analyzed the position after fxe6 Bxh4 for some minutes with Fritz8 and saw >nothing for white(Nd5 -1.41/13,-1.56/14,-1.56/15) In 2 hours, it goes back to Rxh5.
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