Author: Michael Henderson
Date: 11:22:13 09/04/04
Go up one level in this thread
On September 04, 2004 at 12:51:30, David Dahlem wrote: >On September 04, 2004 at 12:39:11, David Dahlem wrote: > >>On September 04, 2004 at 11:46:48, Ed Schröder wrote: >> >>>Does someone possess a good test set for testing Perpetual Checks ? >>> >>>Thanks. >>> >>>Ed >> >>Another position from the archives: >> >>[D]3r4/5k2/5p2/6pp/5p2/1p6/p2R4/K3R3 b - - 0 1 >> >>There is perpetual check and stalemate if black plays ...Rxd2. Many programs >>probably find the perpetual coming, but at what time do your favorite programs >>give a 0.0 or near 0.0 score? This position is actually not a draw but a win by >>black. >> >>Regards >>Dave > >ProDeo UCI UCI1: > 1 00:00 -11.06 1. ... Rxd2 > 2 00:00 -10.82 1. ... Rxd2 2.Rh1 > 3 00:00 -11.24 1. ... Rxd2 2.Rh1 h4 > 4 00:00 -11.20 1. ... Rxd2 2.Rh1 f5 3.Rf1 > 5 00:00 -11.55 1. ... Rxd2 2.Rh1 f5 3.Rf1 h4 > 6 00:00 -11.09 1. ... Rxd2 2.Re7+ Kf8 3.Re1 f5 4.Rf1 > 7 00:00 -11.19 1. ... Rxd2 2.Re7+ Kf8 3.Re8+ Kg7 4.Re1 f5 5.Rf1 > 8 00:00 -9.14 1. ... Rxd2 2.Re7+ Kf8 3.Re8+ Kg7 4.Re7+ Kh8 5.Re8+ Kh7 >6.Re7+ Kg6 7.Rg7+ Kf5 8.Rxg5+ Ke4 9.Rg1 f3 10.Re1+ Kf4 > 9 00:00 -8.66 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc5 7.Re5+ Kc6 >10 00:00 -7.04 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc7 7.Re7+ Rd7 8.Re1 Kd6 9.Re2 Ra7 10.Rd2+ Ke5 >11 00:00 -7.04 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc5 7.Rc6+ Kd4 8.Rd6+ Ke3 9.Re6+ Kd3 10.Rd6+ Ke2 11.Re6+ Kf1 12.Rxf6 Rd1+ >12 00:01 -7.44 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kd7 7.Re7+ Kc8 8.Re8+ Rd8 9.Re1 h4 10.Kb2 Rd3 11.Rc1+ Kb7 12.Rc5 >13 00:03 -5.00 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc5 7.Rc6+ Kd4 8.Rd6+ Ke3 9.Re6+ Kd3 10.Rd6+ Ke2 11.Re6+ Kd3 12.Rd6+ Ke2 >13.Re6+ >14 00:14 -4.76 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc7 7.Rc6+ Kd7 8.Rc7+ Ke6 9.Re7+ Kf5 10.Re5+ Kg4 11.Rg5+ Kf3 12.Rg3+ Ke4 >13.Rxb3 >15 00:42 -4.52 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc5 7.Rc6+ Kd4 8.Rd6+ Ke3 9.Re6+ Kd3 10.Re3+ Kc4 11.Rc3+ Kd4 12.Rxb3 Re2 >13.Rd3+ >16 02:46 -4.69 1. ... Rxd2 2.Re7+ Kg6 3.Rg7+ Kf5 4.Rxg5+ Ke6 5.Re5+ Kd6 >6.Re6+ Kc7 7.Rc6+ Kd7 8.Rc7+ Ke6 > >Regards >Dave The thing holding up the 0.00 score is the 50 move rule. Black takes the rook and definitely holds it before the 50 move rule takes effect. You would have to make some (x < 50) move rule (or some variant on that) to solve this in reasonable time.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.