Author: blass uri
Date: 15:27:52 02/08/99
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On February 08, 1999 at 17:16:33, Dann Corbit wrote: >On February 08, 1999 at 16:57:44, blass uri wrote: >[snip] >>The position: >>r1bk3r/pp2n2p/2n2N2/1R1p3Q/2p4P/P1p5/2qBBPP1/4K2R w K - 0 1 >> >>Junior5 can find Rxd5+ in 10 minutes using pentium200MMX >> >>Junior5 evaluates Bg5 also as an advantage for white >Crafty finds Rxd5+ on ply 7 at about 7 seconds on a PII 300Mhz. It only sees >the eval as 0. Could we see the pv and centipawn value Junior 5 calculated? > > clearing hash tables > time surplus 0.00 time limit 12:50 (12:50) > depth time score variation (1) > 4-> 0.15 -2.66 1. Bf4 Qa4 2. Rb1 Qc2 > 5 0.25 ++ 1. Bf4!! > 5 0.55 -2.21 1. Bf4 Qa2 2. Nxd5 Qa1+ 3. Bd1 Qxa3 > 5 0.74 ++ 1. Bg5!! > 5 0.86 -1.64 1. Bg5 Nd4 2. Nxd5 Nxb5 3. Bxe7+ Kd7 > 4. Bxc4 > 5-> 0.93 -1.64 1. Bg5 Nd4 2. Nxd5 Nxb5 3. Bxe7+ Kd7 > 4. Bxc4 > 6 1.14 -- 1. Bg5 > 6 1.39 -2.23 1. Bg5 d4 2. Bxc4 d3 3. O-O Nd4 > 6 1.91 ++ 1. Bf4!! > 6 2.91 -1.48 1. Bf4 Be6 2. Rxb7 Nd4 3. Bg4 Bxg4 > 4. Qxg4 > 6-> 3.14 -1.48 1. Bf4 Be6 2. Rxb7 Nd4 3. Bg4 Bxg4 > 4. Qxg4 > 7 5.25 -1.42 1. Bf4 Be6 2. Rxb7 Qg6 3. Qg5 c2 4. > Bc1 Qxg5 5. hxg5 > 7 6.61 ++ 1. Rxd5+!! > 7 6.92 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Ke6 5. Bg4+ Kf7 6. Bh5+ > Ke6 7. Bg4+ > 7-> 7.16 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Ke6 5. Bg4+ Kf7 6. Bh5+ > Ke6 7. Bg4+ > 8 8.65 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > Kf7 7. Bh5+ > 8-> 9.52 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > Kf7 7. Bh5+ > 9 14.88 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > > 9-> 30.93 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > > 10 44.00 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > Kf7 7. Bh5+ > 10-> 1:11 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > Kf7 7. Bh5+ > 11 2:12 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > Kf7 7. Bh5+ > 11-> 4:21 0.00 1. Rxd5+ Nxd5 2. Qxd5+ Ke7 3. Qc5+ > Kxf6 4. Qg5+ Kf7 5. Bh5+ Ke6 6. Bg4+ > Kf7 7. Bh5+ The evaluations of Junior5 It first found that white was better at iteration with the name depth 11 evaluation 0.06 iteration was finished after 51 seconds pv:1.Bg5 Be6 2.Nxd5 Bxd5 3.Rxd5+ Kc7 4.Bxe7 Qb1+ 5.Rd1 c2 6.Bd6+ Kb6 7.Bxc4 c1Q The next iteration of Junior5 is called depth 13. 1.Bg5 fail high after 2 minutes and 21 seconds with evaluation 0.36 after 9:03 the evaluation is 0.56 and the pv 1.Bg5 Qa2 2.Rxd5+ Kc7 3.Bf4+ Kb6 4.0-0 Ka6 5.Rdd1 Ng6 6.Bg3 c2 7.Rd6 Rxd5+ failed high after 10:06 with evaluation of 0.57 iteration- depth 13 was finished after 10:49 with evaluation 1.37 and pv:1.Rxd5+Nxd5 2.Qxd5+ Ke7 3.Qc5+ Kf7 4.Bh5+ Kg7 5.Qg5+ Qg6 6.Bxg6 cxd2+ 7.Kxd2 hxg6 8.h5 Bf5 9.h6+ Kf8 9.h7 The evaluation at the end of the iteration with the name depth 14 is 1.58 when black plays in the pv 4...Kxf6 instead of 4...Kg7 with the line 5.Qg5+ Ke6 6.Bg4+ Kf7 7.Qd5+ Kf8 8.Bh6+ Ke8 9.Bh5+ Qg6 10.Bxg6+ The evaluation at the end of iteration 15 is 1.79 with the same line. Rxd5+ is failing high again at depth 16 The evaluation at the end of iteration 16 after evaluating 331936 knodes is even 2.27 The pv similiar to the pv at depth 13 with 7.Qxd2 hxg6 8.Qc3 Rd8 9.Ne8+ Kf8 10.Nc7 I hope that I did not do a mistake in copying the pv from the screen Uri
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