I wonder how much time does your favourite program need to see the draw and if tablebases are productive.
The position is from the following game
http://www.iccf-webchess.com/MakeAMove.aspx?id=234939
[D]R7/P4p2/5k2/8/6P1/r7/7K/8 w - - 0 50
a test position
Moderators: hgm, Rebel, chrisw
-
Uri Blass
- Posts: 10311
- Joined: Thu Mar 09, 2006 12:37 am
- Location: Tel-Aviv Israel
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: a test position
Zappa with 3-4-5 man TB = d24:
edit -- it seems depth is very misleading w/ zappa in endgames since other engnies hit d24 more or less immediately.
[+0.00] d=27 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra1 57.Kd4 Ra4 58.Kd5 Ra5 59.Kc6 Ra2 60.Re8 Rxa7 61.Kd5 Ra5 62.Kc6 Ra6 63.Kb5 Ra3 64.Re4 Rb3 65.Kc6 Kf7 66.Kd7 Rd3 67.Kc6 Rc3 68.Kd5 Rd3 69.Kc4 Rd2 70.Re7 Kxe7 (0:46:14) 27750508kN
[+0.00] d=27 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra1 57.Kd4 Ra4 58.Kd3 Ra3 59.Kd4 Ra4 (0:41:31) 25012971kN
[+0.00] d=26 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra3 57.Kd4 Ra4 58.Kd3 Kh7 59.Re8 Rxa7 60.Ke4 Ra4 61.Kf5 Ra5 62.Kxf6 (0:23:50) 15118918kN
[+0.00] d=25 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 Kg6 62.Ke2 Rd4 63.Rh3 Rxg4 (0:17:10) 11476030kN
[+0.00] d=25 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 (0:15:16) 10263851kN
[+0.00] d=24 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rg8 Kh4 62.Re8 Kxg4 (0:13:15) 9214677kN
[+0.00] d=24 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 Kg6 62.Kf2 Rd2 63.Kg3 Rd3 64.Kf2 Rc3 (0:11:08) 7713340kN
[+1.01] d=23 50.Kg2 Kg7 51.Kf2 Ra2 52.Ke3 Ra1 53.Kd4 Ra5 54.Kc3 Ra1 55.g5 Ra3 56.Kb4 Ra6 57.Kb3 Ra5 58.Kb4 Ra6 (0:05:43) 3932160kN
[+1.01] d=23 50.Kg2 Kg7 51.Kf2 Ra2 52.Ke3 Ra1 53.Kd4 Ra5 54.Kc3 Ra1 55.g5 Ra3 56.Kb4 Ra6 57.Kb3 Kh7 58.Kc2 Ra2 59.Kb1 Ra6 60.Kb2 Kg7 61.Kb3 (0:05:08) 3495060kN
[+1.41] d=22 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Ke1 Ra4 54.Kd2 Ra3 55.Kc2 Kg7 56.Kb2 Rg3 (0:01:52) 1152946kN
[+1.41] d=21 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Kd3 Ra3 54.Kc4 Kg7 (0:01:06) 673374kN
[+1.41] d=21 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Kd3 Ra3 54.Kc4 Ra1 55.Kc5 Rc1 56.Kb6 Rb1 57.Ka5 Ra1 58.Kb5 Rb1 59.Ka4 Ra1 60.Kb3 Kg7 61.Kb4 Rb1 62.Ka4 (0:01:01) 621155kN
[+1.41] d=20 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra6 56.Kc1 Ra1 57.Kc2 Ra2 (0:00:34) 340659kN
[+1.41] d=20 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kf2 (0:00:28) 268633kN
[+1.41] d=19 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kf2 (0:00:14) 135034kN
[+1.39] d=18 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 Kh7 57.Kb4 Ra2 58.Kb5 Ra3 59.g5 Rb3 60.Kc6 Ra3 61.Kc5 Rc3 62.Kb4 Rc7 63.Kb3 (0:00:07) 66874kN
[+1.39] d=17 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 (0:00:04) 36582kN
[+1.39] d=16 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 Rb5 57.Ka4 Rb2 58.Ka3 Re2 59.g5 Re5 (0:00:02) 21862kN
[+1.38] d=15 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kc3 Ra3 57.Kc4 Ra5 58.Kb4 Ra1 (0:00:01) 11327kN
[+1.15] d=14 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Ke7 55.g5 (0:00:00) 5192kN
edit -- it seems depth is very misleading w/ zappa in endgames since other engnies hit d24 more or less immediately.
[+0.00] d=27 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra1 57.Kd4 Ra4 58.Kd5 Ra5 59.Kc6 Ra2 60.Re8 Rxa7 61.Kd5 Ra5 62.Kc6 Ra6 63.Kb5 Ra3 64.Re4 Rb3 65.Kc6 Kf7 66.Kd7 Rd3 67.Kc6 Rc3 68.Kd5 Rd3 69.Kc4 Rd2 70.Re7 Kxe7 (0:46:14) 27750508kN
[+0.00] d=27 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra1 57.Kd4 Ra4 58.Kd3 Ra3 59.Kd4 Ra4 (0:41:31) 25012971kN
[+0.00] d=26 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra3 57.Kd4 Ra4 58.Kd3 Kh7 59.Re8 Rxa7 60.Ke4 Ra4 61.Kf5 Ra5 62.Kxf6 (0:23:50) 15118918kN
[+0.00] d=25 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 Kg6 62.Ke2 Rd4 63.Rh3 Rxg4 (0:17:10) 11476030kN
[+0.00] d=25 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 (0:15:16) 10263851kN
[+0.00] d=24 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rg8 Kh4 62.Re8 Kxg4 (0:13:15) 9214677kN
[+0.00] d=24 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 Kg6 62.Kf2 Rd2 63.Kg3 Rd3 64.Kf2 Rc3 (0:11:08) 7713340kN
[+1.01] d=23 50.Kg2 Kg7 51.Kf2 Ra2 52.Ke3 Ra1 53.Kd4 Ra5 54.Kc3 Ra1 55.g5 Ra3 56.Kb4 Ra6 57.Kb3 Ra5 58.Kb4 Ra6 (0:05:43) 3932160kN
[+1.01] d=23 50.Kg2 Kg7 51.Kf2 Ra2 52.Ke3 Ra1 53.Kd4 Ra5 54.Kc3 Ra1 55.g5 Ra3 56.Kb4 Ra6 57.Kb3 Kh7 58.Kc2 Ra2 59.Kb1 Ra6 60.Kb2 Kg7 61.Kb3 (0:05:08) 3495060kN
[+1.41] d=22 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Ke1 Ra4 54.Kd2 Ra3 55.Kc2 Kg7 56.Kb2 Rg3 (0:01:52) 1152946kN
[+1.41] d=21 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Kd3 Ra3 54.Kc4 Kg7 (0:01:06) 673374kN
[+1.41] d=21 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Kd3 Ra3 54.Kc4 Ra1 55.Kc5 Rc1 56.Kb6 Rb1 57.Ka5 Ra1 58.Kb5 Rb1 59.Ka4 Ra1 60.Kb3 Kg7 61.Kb4 Rb1 62.Ka4 (0:01:01) 621155kN
[+1.41] d=20 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra6 56.Kc1 Ra1 57.Kc2 Ra2 (0:00:34) 340659kN
[+1.41] d=20 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kf2 (0:00:28) 268633kN
[+1.41] d=19 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kf2 (0:00:14) 135034kN
[+1.39] d=18 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 Kh7 57.Kb4 Ra2 58.Kb5 Ra3 59.g5 Rb3 60.Kc6 Ra3 61.Kc5 Rc3 62.Kb4 Rc7 63.Kb3 (0:00:07) 66874kN
[+1.39] d=17 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 (0:00:04) 36582kN
[+1.39] d=16 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 Rb5 57.Ka4 Rb2 58.Ka3 Re2 59.g5 Re5 (0:00:02) 21862kN
[+1.38] d=15 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kc3 Ra3 57.Kc4 Ra5 58.Kb4 Ra1 (0:00:01) 11327kN
[+1.15] d=14 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Ke7 55.g5 (0:00:00) 5192kN
-
zullil
- Posts: 6442
- Joined: Tue Jan 09, 2007 12:31 am
- Location: PA USA
- Full name: Louis Zulli
Re: a test position
Here's what Stockfish-1.6.3 (8 threads, no endgame tables) had before a power failure shut down my system. Note the scores of 0 that were not maintained.Uri Blass wrote:I wonder how much time does your favourite program need to see the draw and if tablebases are productive.
The position is from the following game
http://www.iccf-webchess.com/MakeAMove.aspx?id=234939
[D]R7/P4p2/5k2/8/6P1/r7/7K/8 w - - 0 50
Code: Select all
Searching: R7/P4p2/5k2/8/6P1/r7/7K/8 w - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
2 +1.25 00:01 143 Kg2 Ke7
3 +1.29 00:01 374 Kg2 Ke7 Kf2
4 +0.97 00:01 669 Kg2 Ke7 Kf2 Kd7
5 +1.45 00:01 1759 Kg2 Ke7 Kf2 f6 Ke2
6 +1.09 00:01 2564 Kg2 Ke7 Kf2 f6 Ke2 Kd7
7 +1.41 00:01 12567 Kg2 Ke7 Kf2 Ra4 Kf3 f6 Kg3 Kd7 Rf8 Rxa7 Rxf6
8 +1.70 00:01 23014 Kg2 Ke7 Kf2 Ra4 Kf3 Ra3+ Ke4 Ra4+ Ke3 Ra3+ Kd4
Ra4+ Kd5 f6 Kc6 Rxg4 Re8+
9 +1.41 00:01 30916 Kg2 Ke7 Kf2 Ra4 Kf3 Ra3+ Ke4 Ra4+ Ke3 Ra3+ Kd4
Ra2 g5 Ra5 Ke4 Rxg5
10 +1.54 00:01 59154 Kg2 Ke7 g5 Ra5 Kf3 Ra4 Ke3 Ra5 Kd3 Kd7
11 +1.49 00:01 89128 Kg2 Ke7 g5 Ra5 Kf3 Ra4 Ke3 Ra5 Ke4 Ra4+ Kd5 Ra3
g6 fxg6 Kc6
12 < +1.29 00:01 100406 Kg2 Ke7 g5 Ra5 Kf3 Ra4 Ke3 Ra5 Ke4 Ra4+ Kf3 Ra3+
Ke4 Ra4+
13 +0.85 00:01 164916 Kg2 Ke7 g5 Ra5 Kf3 Ra4 Ke3 Ra5 Ke4 Ra4+ Kd3 Ra2
g6 fxg6 Ke4 Kd7
14 +1.13 00:01 480426 Kg2 Ke7 g5 Ra2+ Kf3 Ra3+ Kf2 Ra2+ Kg3 Ra3+ Kh4
Ra4+ Kh5 Ra5 Kg4 Ra4+ Kf5 Ra5+ Ke4 Ra4+ Kd5 Ra5+
Kc4 Ra4+ Kb3 Ra5 Kb4 Rxg5 Rh8
15 > +1.94 00:01 1080k Kg2 Kg7 g5
16 +1.25 00:01 1398k Kg2 Kg7 g5 Ra6 Kg3 Ra4 Kf3 Ra3+ Kf4 Ra4+ Ke5 Ra2
Kd6 Kg6 Ke7 Kxg5 Rg8+ Kf5 Ra8 Rxa7+ Rxa7
17 +1.17 00:01 2396k Kg2 Kg7 g5 Ra6 Kg3 Ra4 Kf3 Ra3+ Kf2 Kh7 Ke2 Ra4
Ke3 Kg7 Kd2 Kg6 Rg8+ Kf5 a8=Q Rxa8 Rxa8 Kxg5 Ke3
f6 Kf3
18 +1.17 00:01 2808k Kg2 Kg7 g5 Ra6 Kg3 Ra4 Kf3 Ra5 Ke4 Kh7 Kd4 Kg7
Ke3 Ra4 Kd2 Kg6 Rg8+ Kf5 a8=Q Rxa8 Rxa8 Kxg5 Ke3
f6 Kf3
19 > +1.37 00:01 3835k Kg2 Kg7 Kf2 Kf6 Ke2 Kg7 Kd2 Kf6 Kc2 Ke7 Kb2 Ra4
Kc3 Ra2 Kd4 Ra3 Kc5 Ra4 g5 Ra1 Kb6
20 > +2.18 00:01 4915k Kg2 Ke7 Kf2 Kf6 Ke2 Ke7 Kd2 Kf6 Kc2 Ke7 Kb2 Ra4
Kc3 Kf6 Kb3 Ra1 Kc3 Ra4
21 +2.46 00:02 8643k Kg2 Ke7 g5 Ra6 Kf3 Ra4 Ke3 Ra3+ Kd4 Ra5 Ke4 Ra3
Kd5 Ra4 Kc5 Ra6 Kb5 Ra3 Kb6 Rb3+ Ka6 Ra3+ Kb5 Ra1
Kb6 Rb1+ Kc5 Rc1+ Kd5 Rd1+ Kc6 Rc1+ Kb7 Rb1+ Ka6
Ra1+ Kb6
22 +2.42 00:02 13001k Kg2 Ke7 Kf2 Kf6 Ke2 Ke7 Kd2 Kf6 Kc2 Ra5 Kb3 Ra1
Kb2 Ra6 Kc3 Ra1 Kd4 Rd1+ Kc5 Ra1 Kb5 Ke5 Kb6 Rb1+
Kc7 Rc1+ Kb7 Rb1+ Kc6 Rc1+ Kb6 Rb1+
23 +2.46 00:03 15389k Kg2 Ke7 Kf2 Kf6 Ke2 Ke7 Kd2 Kf6 Kc2 Ra5 Kb3 Ra1
Kb2 Ra6 Kc3 Ra1 Kd4 Rd1+ Kc5 Ra1 Kb5 Ke5 Kb6 Rb1+
Ka5 Ra1+ Kb5 Kf4 Kb6 Kxg4 Rg8+ Kf4 Re8 Rxa7
24 +2.30 00:03 18838k Kg2 Ke7 Kf2 Kf6 Ke2 Ke7 Kd2 Kf6 Kc2 Ra5 Kb3 Ra1
Kb2 Ra6 Kc3 Ra1 Kd4 Rd1+ Kc5 Ra1 Kb5 Rb1+ Kc4
Rc1+ Kd5 Rd1+ Kc6 Rc1+ Kb7 Rb1+ Kc7 Rc1+ Kd7 Rd1+
Kc8 Rc1+ Kd7
25 < +1.94 00:04 28788k Kg2 Ke7 g5 Ra6 Kg3 Ra3+ Kf4 Ra4+ Kf5 Ra5+ Ke4
Ra4+ Kd3 Ra3+ Kc4 Ra4+ Kb5 Ra2 Kb6 Rb2+ Ka6 Ra2+
Kb5 Ra3 Kc4
25 > +2.67 00:06 46665k g5+ Kg7 Kg2 Ra6 Kg3 Ra4 Kf2 Ra6 Ke2 Ra3 Kd2 Ra2+
Kc3 Kg6 Rg8+ Kh5 a8=Q Rxa8 Rxa8 Kxg5 Kd3 Kf5 Ke3
Kf6 Kf3 Ke7 Rh8
26 +2.02 00:08 58345k g5+ Kg7 Kg2 Ra6 Kg3 Ra4 Kf2 Ra6 Ke2 Ra3 Kd2 Ra2+
Kc3 Ra1 Kd4 Rd1+ Ke5 Re1+ Kf4 Rf1+ Kg4 Ra1 Kf3
Ra3+ Kf4 Ra6 Ke3 Ra4 Kd3 Ra3+ Ke2 Ra2+ Kf1 Ra3
Ke1 Ra2 Kd1 Ra1+ Kc2 Ra5 Kd2 Ra3 Ke2
27 +2.87 00:11 83742k g5+ Kg7 Kg2 Ra6 Kg3 Ra4 Kf2 Ra6 Ke3 Ra3+ Kf4 Ra4+
Kf3 Ra3+ Ke2 Ra2+ Kd3 Ra5 Kc4 Ra2 Kb5 Ra1 Kb6
Rb1+ Ka5 Ra1+ Kb4 Ra6 Kc5 Ra1 Kc6 Rc1+ Kd5 Rd1+
Kc4 Rc1+ Kb3 Ra1 Kc3 Ra4 Kb3 Ra6 Kb4 Ra1 Kc3
28 +1.05 00:15 118012k g5+ Kg7 Kg2 Ra6 Kg3 Ra4 Kf2 Ra6 Ke3 Ra3+ Kf4 Ra4+
Ke5 Ra5+ Ke4 Kh7 Kd4 Kg7 Kc4 Ra1 Kb4 Rb1+ Kc5 Ra1
Kd5 Ra4 Kc6 Ra1 g6 fxg6 Kb6 g5 Re8 Rxa7 Kxa7 Kf6
Kb6 Kf5
28 +2.51 00:21 170296k Kg2 Ra4 Kf2 Ra3 Ke2 Kg7 Kd2 Ra4 Kd3 Kf6 Kc2 Ra2+
Kb3 Ra6 Kb4 Ra1 Kc5 Ra3 Kb6 Rb3+ Kc6 Rc3+ Kd5 Ra3
Kc5 Ke7 Kb6 Rb3+ Ka5 Ra3+ Kb4 Ra1 Kc5 Ra2 Kc4 Ra1
Kc3 Kf6 Kb3 Ra5 Kb4 Ra2 Kc5 Ke7
29 +2.46 00:24 191739k Kg2 Ra4 Kf2 Ra3 Ke2 Kg7 Kd2 Ra4 Kd3 Kf6 Kc3 Ra3+
Kd4 Ra2 Kd5 Ra5+ Kd6 Ra6+ Kc7 Ra2 Kb6 Rb2+ Ka6
Ra2+ Kb7 Rb2+ Kc6 Rc2+ Kb5 Ra2 Kc5 Ke7 Kc4 Ra1
Kb5 Ra2 Kb6 Rb2+ Kc6 Ra2 Kb6
30 < +2.02 00:25 201254k Kg2 Ra4 Kg3 Ra2 Kf4 Ra3 Ke4 Ra4+ Kd3 Ra2 Kc4 Ra4+
Kb3 Ra1 g5+ Kg7 Kb4 Rb1+ Kc5 Ra1 Kb6 Rb1+ Ka5
Ra1+ Kb5 Rb1+ Kc5
31 +1.94 00:39 311212k Kg2 Ra4 Kg3 Ra2 Kf4 Ra3 Ke4 Ra4+ Kd3 Ra2 Kc4 Ra4+
Kb3 Ra1 g5+ Kg7 Kb4 Rb1+ Kc5 Ra1 Kb6 Rb1+ Ka5
Ra1+ Kb5 Rb1+ Ka4 Ra1+ Kb3 Ra6 Kc4 Ra1 Kd4 Rd1+
Ke4 Ra1 Kf3 Ra3+ Kf2 Ra5 g6 fxg6 Ke3 g5 Ke4 Ra4+
Kd5 Ra1 Ke4 Ra4+
32 > +3.56 00:52 428120k Kg2 Ra4 Kf2 Ra2+ Ke3 Ra3+ Kd4 Ra2 Ke4 Ra4+ Kd3
Rxg4 Re8 Ra4 a8=Q Rxa8 Rxa8 Ke5 Re8+ Kf6 Ke2 Kg7
Kf2 Kf6 Rg8 Ke7 Kf3 Kf6 Re8 Kg7 Kf2
33 +3.56 01:15 623022k Kg2 Ra4 Kf2 Ra2+ Ke3 Ra3+ Kd4 Ra2 Ke4 Ra4+ Kd3
Kg7 g5 Ra2 Ke4 Ra1 Kd4 Ra5 Kc4 Ra1 Kc5 Rc1+ Kd6
Rd1+ Kc6 Rc1+ Kb5 Rb1+ Ka4 Ra1+ Kb4 Rb1+ Kc3 Ra1
Kc4 Rc1+ Kd3 Ra1 Ke4 Re1+ Kf4 Ra1 Kf3 Ra3+ Ke4
Ra1
34 +3.31 02:37 1363M Kg2 Ra4 Kf2 Ra2+ Ke3 Ra3+ Kd4 Ra2 Ke4 Ra4+ Kd3
Kg7 g5 Ra2 Ke4 Ra1 Kd4 Rd1+ Kc5 Rc1+ Kd6 Rd1+ Kc6
Rc1+ Kb7 Rb1+ Ka6 Ra1+ Kb6 Rb1+ Ka5 Ra1+ Kb5 Rb1+
Ka4 Ra1+ Kb4 Rb1+ Kc3 Ra1 Kc4 Rc1+ Kd3 Ra1 Ke4
Re1+ Kf4 Rf1+ Ke5 Re1+ Kf5 Ra1 Ke5 Ra2 Kf4 Rf2+
Ke3 Ra2 Kf3 Ra4 Kg3 Ra6 Kh4 Ra4+ Kh3 Ra2 Kg4 Ra1
Kf4 Ra2 Ke3 Ra4 Ke2 Ra3 Kf2 Ra4 Kg2 Ra3 Kf2
35 +3.07 03:03 1561M Kg2 Ra4 Kf2 Ra2+ Ke3 Ra3+ Kd4 Ra2 Ke4 Ra4+ Kd3
Kg7 g5 Ra2 Ke4 Ra1 Kd4 Rd1+ Kc5 Rc1+ Kd6 Rd1+ Kc6
Rc1+ Kb7 Rb1+ Ka6 Ra1+ Kb6 Rb1+ Ka5 Ra1+ Kb5 Rb1+
Ka4 Ra1+ Kb4 Rb1+ Kc3 Ra1 Kc4 Rc1+ Kd3 Ra1 Ke4
Re1+ Kf4 Rf1+ Kg4 Ra1 Kf3 Ra4 Ke3 Ra1 Kd3 Rd1+
Kc3 Ra1
36 +3.07 03:29 1769M Kg2 Ra4 Kf2 Ra2+ Ke3 Ra3+ Kd4 Ra2 Ke4 Ra4+ Kd3
Kg7 g5 Ra2 Ke4 Ra1 Kd4 Rd1+ Kc5 Rc1+ Kd6 Rd1+ Kc6
Rc1+ Kb7 Rb1+ Ka6 Ra1+ Kb6 Rb1+ Ka5 Ra1+ Kb5 Rb1+
Ka4 Ra1+ Kb4 Rb1+ Kc3 Ra1 Kc4 Rc1+ Kd3 Ra1 Ke4
Re1+ Kf4 Ra1 Kg3 Ra6 Kf3 Ra1 Ke3 Re1+ Kf2 Ra1 Kf3
Ra3+ Kf4 Ra4+ Ke5 Ra5+ Kd6 Ra1 Kc5 Rc1+
37 < +2.83 03:41 1854M Kg2 Ra4 g5+ Kg7 Kf3 Ra3+ Ke4 Ra1 Kd4 Ra5 Kc4 Ra3
Kc5 Ra1 Kd4
38 < +1.86 05:53 2990M Kg2 Ra4 Kf3 Kg7 Re8 Rxa7
39 +0.00 09:11 4757M Kg2 Ra4 Kf3 Kg7 Re8 Rxa7 Re4 Kf6 Kf4 Ra5 Rb4 Ke6
Ke4 Re5+ Kf4 Ra5
40 > +3.47 15:26 8063M Kg2 Kg7 Kf2 Kf6 Ke2 Kg7 Kf2
41 +0.00 21:26 11337M Kg2 Kg7 Kf2 Kf6 Ke2 Kg7 Kf2
41 +3.39 27:23 14225M Kh1 Ra1+ Kg2 Ra3 Kf1 Ra2 Ke1 Ra1+ Ke2 Ra3 Kd2
Ra2+ Kd3 Ra3+ Kd4 Ra2 g5+ Kg7 Kc4 Ra3 Kc5 Ra1 Kc6
Rc1+ Kd5 Ra1 Ke5 Ra4 Kf5 Ra3 Kf4 Ra1 Kf3 Ra4 Ke3
Kh7 Kd3 Kg7 Kc3 Ra1 Kb4 Rb1+ Ka5 Ra1+ Kb5 Rb1+
Ka4 Ra1+ Kb3 Ra5 Kb4 Ra1 Kc4 Ra3
-
Eelco de Groot
- Posts: 4567
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: a test position
I think that Rainbow Serpent scores the pawn on the a-file a bit lower than Stockfish, but of course also not ever recognizing that it is practically impossible to promote it. I'm quite happy with Rainbow Serpent reaching a depth of 30 plies here 
Some changes in search not related to the position. It does know that it is a good idea to bring the King over to the pawn on a7 and keeping the other King away from the corner, at least it should give a bigger bonus for that than Stockfish, but in this case that is not enough, it just changes the PV I think.
Eelco
[D]R7/P4p2/5k2/8/6P1/r7/7K/8 w - -
Engine: Rainbow Serpent 1.6.3s(dc) Build 229 (Athlon 2009 MHz, 256 MB)
by Tord Romstad, Marco Costalba, Joona Kiiski Modifications: Dann Corbit
1.00 0:00 +2.10 50.Kg2 (66) 0
2.00 0:00 +1.25 50.Kg2 Ke5 51.Kg1 (195) 0
3.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Ra4 52.Ke3 Rxg4
53.Re8+ (11.529) 46
4.00 0:00 +1.58 50.Kg2 Ke7 51.Kf2 Kd7 52.Rf8 Ra2+
53.Ke3 (14.187) 56
5.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7 (22.636) 85
6.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Kf5
53.Ke2 Kxg5 54.Rg8+ Kf4 (33.240) 124
7.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.Ke2 Ra2+ 54.Ke3 Ra3+ 55.Kf2 Ra2+
56.Kg3 Ra3+ 57.Kf4 Ra4+ 58.Ke5 Ra5+
59.Ke4 Ra4+ 60.Kf3 Ra3+ 61.Ke4 Ra2 (50.736) 170
8.00 0:00 +1.37-- 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.Kg2 Ra2+ 54.Kf3 Ra4 55.Kg3 Ra3+
56.Kf2 Ra5 57.Kf3 Ra3+ 58.Ke4 Ra4+
59.Ke5 Ra5+ 60.Kd4 Ra4+ 61.Kc5 Ra5+
62.Kc4 Rxg5 63.Re8+ (70.001) 223
9.00 0:00 +1.17 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.Kg2 Ra2+ 54.Kf3 Ra4 55.Ke2 Ra3
56.Kf2 Ra5 57.Kg3 Rxg5+ 58.Kf4 Ra5 (166.348) 379
10.00 0:00 +1.57++ 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.g6 fxg6 54.Rg8 Ra2+ 55.Ke3 Ra3+
56.Kf4 Rxa7 57.Rg7+ Ke6 58.Rxa7 Kf6 (289.270) 513
11.00 0:00 +1.29 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.g6 Ra2+ 54.Ke3 Ra3+ 55.Kf4 Ra4+ (328.324) 538
12.01 0:03 +1.58 50.Kg2 Ke7 51.Kf2 Kf6 52.Ke2 Ke7
53.Kd2 Kf6 54.Kc2 Ra2+ 55.Kd3 Ra4
56.Ke3 Ke7 57.g5 Ra3+ 58.Kd4 Ra4+
59.Kd3 Ra3+ 60.Kc4 Ra1 61.Kc5 Ra4
62.Kb5 Ra1 63.Kb4 (2.638.698) 848
12.02 0:04 +3.15 50.g5+ Kg7 51.Kg2 Ra2+ 52.Kg3 Ra4
53.Kf3 Kh7 54.Ke3 Kg7 55.Kd3 Kh7
56.Kd2 Ra3 57.Kc2 Kg7 58.Kb2 Ra6
59.Kc3 Kg6 60.Rg8+ Kf5 61.a8Q Rxa8
62.Rxa8 Kxg5 63.Kd4 (3.687.059) 880
13.01 0:04 +1.69 50.g5+ Kg7 51.Kg2 Ra6 52.Kg3 Kh7
53.Kf3 f6 54.Rf8 Rxa7 55.Rxf6 Ra4
56.Rc6 Kg7 57.Kg3 Ra5 58.Kg4 Ra3
59.Kh5 (4.050.773) 884
14.01 0:05 +1.17 50.g5+ Kg7 51.Kg2 Ra6 52.Kg3 Kh7
53.Kf3 f6 54.Rf8 Ra3+ 55.Kg4 Rxa7
56.Rxf6 Ra1 57.Kf4 Kg7 58.Rd6 Rf1+
59.Ke4 Re1+ 60.Kf3 Rf1+ 61.Kg2 Rf5
62.Kg3 Rxg5+ 63.Kf4 (4.933.512) 907
14.10 0:07 +1.53 50.Kg1 Ra2 51.Kf1 Ke7 52.g5 Ra1+
53.Kf2 Ra2+ 54.Ke3 Ra3+ 55.Kd4 Ra4+
56.Kd5 Ra3 57.Ke4 Ra4+ 58.Kd3 Ra3+
59.Kc4 Ra2 60.Kc3 Ra3+ 61.Kb2 Ra6
62.Kb3 Rb6+ 63.Ka4 (6.765.992) 925
15.01 0:08 +1.28 50.Kg1 Ra2 51.Kf1 Ke7 52.g5 Ra1+
53.Kf2 Ra2+ 54.Ke3 Ra3+ 55.Kd4 Ra4+
56.Kd5 Ra3 57.Ke4 Ra4+ 58.Kd3 Ra3+
59.Kd4 (8.108.611) 936
16.01 0:40 +1.94++ 50.Kg1 Ra2 51.g5+ Kg7 52.Kf1 Kh7
53.Ke1 Kg7 54.Kd1 Kh7 55.Kc1 Kg7
56.Kb1 Ra4 57.Kb2 f6 58.gxf6+ Kf7
59.Rh8 Rxa7 60.Rh7+ (42.832.301) 1054
17.01 0:51 +1.90 50.Kg1 Ra4 51.Kf2 Ra2+ 52.Ke3 Ra3+
53.Ke4 Ra4+ 54.Kf3 Ra3+ 55.Ke2 Ra2+
56.Kd3 Ra3+ 57.Kd4 Ke7 58.Kc5 Ra1
59.Kb6 Rb1+ 60.Ka6 Ra1+ 61.Kb6 (54.851.919) 1059
18.01 1:20 +2.34 50.Kg1 Ra4 51.Kf2 Ra2+ 52.Ke3 Ra3+
53.Ke4 Ra4+ 54.Kf3 Ra3+ 55.Ke2 Ra1
56.Kd3 Ke7 57.Ke4 Ra4+ 58.Kd5 Ra6
59.Kc5 Ra1 60.Kb5 Rb1+ 61.Ka5 Ra1+
62.Kb4 Rb1+ 63.Kc3 (85.738.272) 1059
19.01 1:36 +0.78-- 50.Kg1 Ra2 51.g5+ Kg7 52.Kf1 Ra3
53.Kf2 Ra1 54.Kg2 Ra3 55.g6 fxg6
56.Kf2 Ra4 57.Kg2 Ra3 (102.507.152) 1065
19.02 1:40 +1.05 50.g5+ Kg7 51.Kg2 Ra1 52.Kg3 Ra3+
53.Kf4 Ra1 54.Ke5 Ra4 55.Kd6 Ra3
56.Kc5 Ra1 57.Kb4 Ra6 58.Kb3 Ra5
59.g6 fxg6 60.Kb4 Ra2 61.Kb5 g5
62.Kb6 Rxa7 63.Rxa7+ (107.822.339) 1069
19.10 1:43 +1.19 50.Kg2 Kg7 51.Kf2 Ra4 52.Ke3 Kf6
53.g5+ Kg7 54.Kd2 Ra5 55.Kc2 Ra2+
56.Kb3 Ra1 57.Kc4 Rc1+ 58.Kb4 Ra1
59.Kc3 Ra4 60.Kc2 Ra2+ (111.226.132) 1070
20.01 1:56 +1.97 50.Kg2 Kg7 51.Kf2 Ra4 52.Ke3 Kf6
53.Kd3 Kg7 54.Kc2 Ra1 55.Kb3 Kf6
56.Kc4 Ra4+ 57.Kb5 Ra1 58.g5+ Kg7
59.Kb4 Rb1+ 60.Ka5 Ra1+ 61.Kb6 Rb1+
62.Ka6 Ra1+ 63.Kb6 (125.337.661) 1072
21.01 2:00 +1.96 50.Kg2 Kg7 51.Kf2 Ra4 52.Ke3 Kf6
53.Kd3 Kg7 54.Kc2 Kf6 55.Kc3 Ra3+
56.Kd4 Ra2 57.Kd5 Ra1 58.Kc6 Rc1+
59.Kd7 Ra1 60.Ke8 Ra4 61.Kf8 Rxg4
62.Rd8 Ra4 63.a8Q (128.970.927) 1074
22.01 2:06 +1.17-- 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.g6 fxg6
56.Kc1 Ra2 57.Kb1 Ra4 58.Kc2 Ra5
59.Kd3 Ra3+ 60.Ke2 g5 61.Kd2 Ra5
62.Ke2 Ra3 (136.892.715) 1079
23.01 2:14 +1.29 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.Kc2 Ra1
56.Kc3 Ra4 57.Kb2 Ra5 58.Kb3 Ra1
59.Kc4 Rc1+ 60.Kb4 Rb1+ 61.Ka4 Ra1+
62.Kb3 Rb1+ 63.Ka2 (145.329.555) 1084
24.01 2:50 +1.75 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.Kc2 Ra1
56.Kc3 Ra2 57.Kd4 Ra5 58.Kc4 Rxa7
59.Kd5 (188.229.999) 1101
25.01 3:12 +1.76 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.Kc2 Ra1
56.Kc3 Ra2 57.Kc4 Ra4+ 58.Kb5 Ra1
59.Kb4 Kg6 60.Rg8+ Kh5 61.a8R Rxa8
62.Rxa8 Kxg5 63.Kc4 (213.278.912) 1106
26.01 3:25 +2.25++ 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ke7
53.g5 Ra2+ 54.Ke3 Ra3+ 55.Kd4 Ra1
56.Kd3 Ra2 57.g6 fxg6 58.Rh8 Rxa7
59.Rh7+ Kd8 60.Rxa7 Ke8 61.Ra8+ Kf7
62.Ke3 g5 63.Kf2 (227.746.543) 1108
27.01 4:00 +2.24 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd1 Ra2 54.Kc1 Kf6 55.Kb1 Ra5
56.Kc2 Ra4 57.Kb2 Ra6 58.g5+ Kg7
59.Kb3 Ra1 60.Kb4 Kh7 61.Kc5 Kg7
62.Kb5 Ra3 63.Kc6 (264.854.068) 1099
28.01 5:15 +1.28 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd1 Ra2 54.Kc1 Kf6 55.Kb1 Ra5
56.Kb2 Ra4 57.Kc3 Ra1 58.Kb3 Kg7
59.g5 Kh7 60.Kb4 Kg7 61.Kb5 Rb1+
62.Kc6 Ra1 (352.374.843) 1117
29.01 8:01 +1.46 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd1 Ra2 54.Kc1 Kf6 55.Kb1 Ra5
56.Kb2 Ra6 57.Kb3 Ra1 58.Kb4 Rb1+
59.Ka4 Ra1+ 60.Kb3 Ke5 61.Re8+ Kf4
62.a8Q Rxa8 63.Rxa8 (541.206.765) 1124
30.01 9:54 +1.45 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Ra2+ 54.Kc1 Kf6 55.Kb1 Ra5
56.Kc2 Ra3 57.Kb2 Ra5 58.Kc3 Ra4
59.Kb3 Ra1 60.Kb4 Ra6 61.Kb5 Ra1
62.Kb6 Rb1+ 63.Ka6 (671.115.580) 1128
best move: Kh2-g2 time: 14:55.422 min n/s: 1.121.826 nodes: 1.004.490.230
The final leaf position is this: [D]R7/P4p2/K4k2/8/6P1/8/8/1r6 b - - 0 1
The game from Uri's link:
[Event "ICCF Olympiad 18 Preliminaries - Section 02"]
[Site "ICCF"]
[Date "2009.9.10"]
[Round "-"]
[White "Glazman, Moshe"]
[Black "Van Leeuwen, Etienne"]
[WhiteElo "2545"]
[BlackElo "2451"]
[Result "1/2-1/2"]
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3
Nge7 7. Bc4 b6 8. O-O Bb7 9. Nb3 Ne5 10. Nxc5 bxc5 11. Bb3
Bxe4 12. Nd2 Bd3 13. f4 N5g6 14. Rf2 O-O 15. Bxc5 Qa6
16. Qf3 d6 17. Bd4 c5 18. c4 Bf5 19. Bc3 Rae8 20. Re1 Nc6
21. Rxe8 Rxe8 22. Nf1 Nd4 23. Bxd4 cxd4 24. Qd5 Bd7
25. Qxd4 Nh4 26. Ne3 Bc6 27. h3 Qb6 28. Qxb6 axb6 29. Nd5
Re1+ 30. Kh2 Bxd5 31. cxd5 Nf5 32. Rd2 Kf8 33. Bd1 Ne3
34. Be2 Nxd5 35. Rxd5 Rxe2 36. Rb5 d5 37. Rxb6 d4 38. Rb3
d3 39. Rxd3 Rxb2 40. Ra3 g6 41. Ra7 Kg7 42. a4 Rb3 43. a5
Ra3 44. a6 h5 45. g4 hxg4 46. hxg4 g5 47. fxg5 Kg6 48. Ra8
Kxg5 49. a7 Kf6 50. g5+ Kg7 51. Kg2 Ra1 52. Kf3 1/2-1/2
Some changes in search not related to the position. It does know that it is a good idea to bring the King over to the pawn on a7 and keeping the other King away from the corner, at least it should give a bigger bonus for that than Stockfish, but in this case that is not enough, it just changes the PV I think.Eelco
[D]R7/P4p2/5k2/8/6P1/r7/7K/8 w - -
Engine: Rainbow Serpent 1.6.3s(dc) Build 229 (Athlon 2009 MHz, 256 MB)
by Tord Romstad, Marco Costalba, Joona Kiiski Modifications: Dann Corbit
1.00 0:00 +2.10 50.Kg2 (66) 0
2.00 0:00 +1.25 50.Kg2 Ke5 51.Kg1 (195) 0
3.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Ra4 52.Ke3 Rxg4
53.Re8+ (11.529) 46
4.00 0:00 +1.58 50.Kg2 Ke7 51.Kf2 Kd7 52.Rf8 Ra2+
53.Ke3 (14.187) 56
5.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7 (22.636) 85
6.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Kf5
53.Ke2 Kxg5 54.Rg8+ Kf4 (33.240) 124
7.00 0:00 +1.57 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.Ke2 Ra2+ 54.Ke3 Ra3+ 55.Kf2 Ra2+
56.Kg3 Ra3+ 57.Kf4 Ra4+ 58.Ke5 Ra5+
59.Ke4 Ra4+ 60.Kf3 Ra3+ 61.Ke4 Ra2 (50.736) 170
8.00 0:00 +1.37-- 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.Kg2 Ra2+ 54.Kf3 Ra4 55.Kg3 Ra3+
56.Kf2 Ra5 57.Kf3 Ra3+ 58.Ke4 Ra4+
59.Ke5 Ra5+ 60.Kd4 Ra4+ 61.Kc5 Ra5+
62.Kc4 Rxg5 63.Re8+ (70.001) 223
9.00 0:00 +1.17 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.Kg2 Ra2+ 54.Kf3 Ra4 55.Ke2 Ra3
56.Kf2 Ra5 57.Kg3 Rxg5+ 58.Kf4 Ra5 (166.348) 379
10.00 0:00 +1.57++ 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.g6 fxg6 54.Rg8 Ra2+ 55.Ke3 Ra3+
56.Kf4 Rxa7 57.Rg7+ Ke6 58.Rxa7 Kf6 (289.270) 513
11.00 0:00 +1.29 50.Kg2 Ke7 51.Kf2 Kf6 52.g5+ Ke7
53.g6 Ra2+ 54.Ke3 Ra3+ 55.Kf4 Ra4+ (328.324) 538
12.01 0:03 +1.58 50.Kg2 Ke7 51.Kf2 Kf6 52.Ke2 Ke7
53.Kd2 Kf6 54.Kc2 Ra2+ 55.Kd3 Ra4
56.Ke3 Ke7 57.g5 Ra3+ 58.Kd4 Ra4+
59.Kd3 Ra3+ 60.Kc4 Ra1 61.Kc5 Ra4
62.Kb5 Ra1 63.Kb4 (2.638.698) 848
12.02 0:04 +3.15 50.g5+ Kg7 51.Kg2 Ra2+ 52.Kg3 Ra4
53.Kf3 Kh7 54.Ke3 Kg7 55.Kd3 Kh7
56.Kd2 Ra3 57.Kc2 Kg7 58.Kb2 Ra6
59.Kc3 Kg6 60.Rg8+ Kf5 61.a8Q Rxa8
62.Rxa8 Kxg5 63.Kd4 (3.687.059) 880
13.01 0:04 +1.69 50.g5+ Kg7 51.Kg2 Ra6 52.Kg3 Kh7
53.Kf3 f6 54.Rf8 Rxa7 55.Rxf6 Ra4
56.Rc6 Kg7 57.Kg3 Ra5 58.Kg4 Ra3
59.Kh5 (4.050.773) 884
14.01 0:05 +1.17 50.g5+ Kg7 51.Kg2 Ra6 52.Kg3 Kh7
53.Kf3 f6 54.Rf8 Ra3+ 55.Kg4 Rxa7
56.Rxf6 Ra1 57.Kf4 Kg7 58.Rd6 Rf1+
59.Ke4 Re1+ 60.Kf3 Rf1+ 61.Kg2 Rf5
62.Kg3 Rxg5+ 63.Kf4 (4.933.512) 907
14.10 0:07 +1.53 50.Kg1 Ra2 51.Kf1 Ke7 52.g5 Ra1+
53.Kf2 Ra2+ 54.Ke3 Ra3+ 55.Kd4 Ra4+
56.Kd5 Ra3 57.Ke4 Ra4+ 58.Kd3 Ra3+
59.Kc4 Ra2 60.Kc3 Ra3+ 61.Kb2 Ra6
62.Kb3 Rb6+ 63.Ka4 (6.765.992) 925
15.01 0:08 +1.28 50.Kg1 Ra2 51.Kf1 Ke7 52.g5 Ra1+
53.Kf2 Ra2+ 54.Ke3 Ra3+ 55.Kd4 Ra4+
56.Kd5 Ra3 57.Ke4 Ra4+ 58.Kd3 Ra3+
59.Kd4 (8.108.611) 936
16.01 0:40 +1.94++ 50.Kg1 Ra2 51.g5+ Kg7 52.Kf1 Kh7
53.Ke1 Kg7 54.Kd1 Kh7 55.Kc1 Kg7
56.Kb1 Ra4 57.Kb2 f6 58.gxf6+ Kf7
59.Rh8 Rxa7 60.Rh7+ (42.832.301) 1054
17.01 0:51 +1.90 50.Kg1 Ra4 51.Kf2 Ra2+ 52.Ke3 Ra3+
53.Ke4 Ra4+ 54.Kf3 Ra3+ 55.Ke2 Ra2+
56.Kd3 Ra3+ 57.Kd4 Ke7 58.Kc5 Ra1
59.Kb6 Rb1+ 60.Ka6 Ra1+ 61.Kb6 (54.851.919) 1059
18.01 1:20 +2.34 50.Kg1 Ra4 51.Kf2 Ra2+ 52.Ke3 Ra3+
53.Ke4 Ra4+ 54.Kf3 Ra3+ 55.Ke2 Ra1
56.Kd3 Ke7 57.Ke4 Ra4+ 58.Kd5 Ra6
59.Kc5 Ra1 60.Kb5 Rb1+ 61.Ka5 Ra1+
62.Kb4 Rb1+ 63.Kc3 (85.738.272) 1059
19.01 1:36 +0.78-- 50.Kg1 Ra2 51.g5+ Kg7 52.Kf1 Ra3
53.Kf2 Ra1 54.Kg2 Ra3 55.g6 fxg6
56.Kf2 Ra4 57.Kg2 Ra3 (102.507.152) 1065
19.02 1:40 +1.05 50.g5+ Kg7 51.Kg2 Ra1 52.Kg3 Ra3+
53.Kf4 Ra1 54.Ke5 Ra4 55.Kd6 Ra3
56.Kc5 Ra1 57.Kb4 Ra6 58.Kb3 Ra5
59.g6 fxg6 60.Kb4 Ra2 61.Kb5 g5
62.Kb6 Rxa7 63.Rxa7+ (107.822.339) 1069
19.10 1:43 +1.19 50.Kg2 Kg7 51.Kf2 Ra4 52.Ke3 Kf6
53.g5+ Kg7 54.Kd2 Ra5 55.Kc2 Ra2+
56.Kb3 Ra1 57.Kc4 Rc1+ 58.Kb4 Ra1
59.Kc3 Ra4 60.Kc2 Ra2+ (111.226.132) 1070
20.01 1:56 +1.97 50.Kg2 Kg7 51.Kf2 Ra4 52.Ke3 Kf6
53.Kd3 Kg7 54.Kc2 Ra1 55.Kb3 Kf6
56.Kc4 Ra4+ 57.Kb5 Ra1 58.g5+ Kg7
59.Kb4 Rb1+ 60.Ka5 Ra1+ 61.Kb6 Rb1+
62.Ka6 Ra1+ 63.Kb6 (125.337.661) 1072
21.01 2:00 +1.96 50.Kg2 Kg7 51.Kf2 Ra4 52.Ke3 Kf6
53.Kd3 Kg7 54.Kc2 Kf6 55.Kc3 Ra3+
56.Kd4 Ra2 57.Kd5 Ra1 58.Kc6 Rc1+
59.Kd7 Ra1 60.Ke8 Ra4 61.Kf8 Rxg4
62.Rd8 Ra4 63.a8Q (128.970.927) 1074
22.01 2:06 +1.17-- 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.g6 fxg6
56.Kc1 Ra2 57.Kb1 Ra4 58.Kc2 Ra5
59.Kd3 Ra3+ 60.Ke2 g5 61.Kd2 Ra5
62.Ke2 Ra3 (136.892.715) 1079
23.01 2:14 +1.29 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.Kc2 Ra1
56.Kc3 Ra4 57.Kb2 Ra5 58.Kb3 Ra1
59.Kc4 Rc1+ 60.Kb4 Rb1+ 61.Ka4 Ra1+
62.Kb3 Rb1+ 63.Ka2 (145.329.555) 1084
24.01 2:50 +1.75 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.Kc2 Ra1
56.Kc3 Ra2 57.Kd4 Ra5 58.Kc4 Rxa7
59.Kd5 (188.229.999) 1101
25.01 3:12 +1.76 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Kf6 54.g5+ Kg7 55.Kc2 Ra1
56.Kc3 Ra2 57.Kc4 Ra4+ 58.Kb5 Ra1
59.Kb4 Kg6 60.Rg8+ Kh5 61.a8R Rxa8
62.Rxa8 Kxg5 63.Kc4 (213.278.912) 1106
26.01 3:25 +2.25++ 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ke7
53.g5 Ra2+ 54.Ke3 Ra3+ 55.Kd4 Ra1
56.Kd3 Ra2 57.g6 fxg6 58.Rh8 Rxa7
59.Rh7+ Kd8 60.Rxa7 Ke8 61.Ra8+ Kf7
62.Ke3 g5 63.Kf2 (227.746.543) 1108
27.01 4:00 +2.24 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd1 Ra2 54.Kc1 Kf6 55.Kb1 Ra5
56.Kc2 Ra4 57.Kb2 Ra6 58.g5+ Kg7
59.Kb3 Ra1 60.Kb4 Kh7 61.Kc5 Kg7
62.Kb5 Ra3 63.Kc6 (264.854.068) 1099
28.01 5:15 +1.28 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd1 Ra2 54.Kc1 Kf6 55.Kb1 Ra5
56.Kb2 Ra4 57.Kc3 Ra1 58.Kb3 Kg7
59.g5 Kh7 60.Kb4 Kg7 61.Kb5 Rb1+
62.Kc6 Ra1 (352.374.843) 1117
29.01 8:01 +1.46 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd1 Ra2 54.Kc1 Kf6 55.Kb1 Ra5
56.Kb2 Ra6 57.Kb3 Ra1 58.Kb4 Rb1+
59.Ka4 Ra1+ 60.Kb3 Ke5 61.Re8+ Kf4
62.a8Q Rxa8 63.Rxa8 (541.206.765) 1124
30.01 9:54 +1.45 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7
53.Kd2 Ra2+ 54.Kc1 Kf6 55.Kb1 Ra5
56.Kc2 Ra3 57.Kb2 Ra5 58.Kc3 Ra4
59.Kb3 Ra1 60.Kb4 Ra6 61.Kb5 Ra1
62.Kb6 Rb1+ 63.Ka6 (671.115.580) 1128
best move: Kh2-g2 time: 14:55.422 min n/s: 1.121.826 nodes: 1.004.490.230
The final leaf position is this: [D]R7/P4p2/K4k2/8/6P1/8/8/1r6 b - - 0 1
The game from Uri's link:
[Event "ICCF Olympiad 18 Preliminaries - Section 02"]
[Site "ICCF"]
[Date "2009.9.10"]
[Round "-"]
[White "Glazman, Moshe"]
[Black "Van Leeuwen, Etienne"]
[WhiteElo "2545"]
[BlackElo "2451"]
[Result "1/2-1/2"]
1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3
Nge7 7. Bc4 b6 8. O-O Bb7 9. Nb3 Ne5 10. Nxc5 bxc5 11. Bb3
Bxe4 12. Nd2 Bd3 13. f4 N5g6 14. Rf2 O-O 15. Bxc5 Qa6
16. Qf3 d6 17. Bd4 c5 18. c4 Bf5 19. Bc3 Rae8 20. Re1 Nc6
21. Rxe8 Rxe8 22. Nf1 Nd4 23. Bxd4 cxd4 24. Qd5 Bd7
25. Qxd4 Nh4 26. Ne3 Bc6 27. h3 Qb6 28. Qxb6 axb6 29. Nd5
Re1+ 30. Kh2 Bxd5 31. cxd5 Nf5 32. Rd2 Kf8 33. Bd1 Ne3
34. Be2 Nxd5 35. Rxd5 Rxe2 36. Rb5 d5 37. Rxb6 d4 38. Rb3
d3 39. Rxd3 Rxb2 40. Ra3 g6 41. Ra7 Kg7 42. a4 Rb3 43. a5
Ra3 44. a6 h5 45. g4 hxg4 46. hxg4 g5 47. fxg5 Kg6 48. Ra8
Kxg5 49. a7 Kf6 50. g5+ Kg7 51. Kg2 Ra1 52. Kf3 1/2-1/2
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
-
metax
- Posts: 344
- Joined: Wed Sep 23, 2009 5:56 pm
- Location: Germany
Re: a test position
ChessMind without endgame tablebases: No draw score, but a rather low score for white.
R7/P4p2/5k2/8/6P1/r7/7K/8 w - -
Engine: ChessMind 0.72 (0 MB)
von metax
8.00 0:01 +0.20 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kf4 Ta4+ 5.Kf3 Ke6 6.Tb5 Ta3+
7.Ke2 (377.246) 298
9.00 0:01 +0.24 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kf4 Ta4+ 5.Kf3 Ke6 6.Tf5 f6 7.Kg3 Ta3+
8.Kf4 (526.412) 309
10.01 0:02 +0.28 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kf4 Ta4+ 5.Kf3 Ke6 6.Tf5 f6 7.Kg3 Ta3+
8.Kh2 (931.537) 312
11.01 0:06 +0.12 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kh4 Ta4 5.Tf5+ Ke6 6.Kg5 Ta7
7.Tf6+ Ke7 8.Tc6 Ta5+ 9.Kf4 Ta4+ (2.228.544) 332
11.04 0:21 +0.26 1.Kg2 Kg7 2.Tc8 Txa7 3.Tc5 Te7 4.Tf5 Kf8
5.Kg3 Te6 6.Kf3 f6 (7.322.294) 346
12.01 0:36 +0.18 1.Kg2 Kg7 2.Tc8 Txa7 3.Tc5 Te7 4.Tf5 Kf8
5.Kg3 Te6 6.Kf3 Ke7 7.Kf4 (12.791.709) 349
13.01 0:55 +0.18 1.Kg2 Kg7 2.Tc8 Txa7 3.Tc5 Te7 4.Tf5 Te6
5.Kg3 Te3+ 6.Kf2 Te6 7.Kg1 Te1+
8.Kh2 Te6 (19.325.705) 348
Bester Zug: Kh2-g2 Zeit: 2:09.060 min K/s: 352.000 Knoten: 44.731.026
R7/P4p2/5k2/8/6P1/r7/7K/8 w - -
Engine: ChessMind 0.72 (0 MB)
von metax
8.00 0:01 +0.20 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kf4 Ta4+ 5.Kf3 Ke6 6.Tb5 Ta3+
7.Ke2 (377.246) 298
9.00 0:01 +0.24 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kf4 Ta4+ 5.Kf3 Ke6 6.Tf5 f6 7.Kg3 Ta3+
8.Kf4 (526.412) 309
10.01 0:02 +0.28 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kf4 Ta4+ 5.Kf3 Ke6 6.Tf5 f6 7.Kg3 Ta3+
8.Kh2 (931.537) 312
11.01 0:06 +0.12 1.Td8 Txa7 2.Td5 Ta2+ 3.Kg3 Ta3+
4.Kh4 Ta4 5.Tf5+ Ke6 6.Kg5 Ta7
7.Tf6+ Ke7 8.Tc6 Ta5+ 9.Kf4 Ta4+ (2.228.544) 332
11.04 0:21 +0.26 1.Kg2 Kg7 2.Tc8 Txa7 3.Tc5 Te7 4.Tf5 Kf8
5.Kg3 Te6 6.Kf3 f6 (7.322.294) 346
12.01 0:36 +0.18 1.Kg2 Kg7 2.Tc8 Txa7 3.Tc5 Te7 4.Tf5 Kf8
5.Kg3 Te6 6.Kf3 Ke7 7.Kf4 (12.791.709) 349
13.01 0:55 +0.18 1.Kg2 Kg7 2.Tc8 Txa7 3.Tc5 Te7 4.Tf5 Te6
5.Kg3 Te3+ 6.Kf2 Te6 7.Kg1 Te1+
8.Kh2 Te6 (19.325.705) 348
Bester Zug: Kh2-g2 Zeit: 2:09.060 min K/s: 352.000 Knoten: 44.731.026
-
Marc MP
Re: a test position
Apart from Zappa, did you find any other engine able to solves this? Here are a few of my unsuccessful tries:yanquis1972 wrote:Zappa with 3-4-5 man TB = d24:
edit -- it seems depth is very misleading w/ zappa in endgames since other engnies hit d24 more or less immediately.
[+0.00] d=27 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra1 57.Kd4 Ra4 58.Kd5 Ra5 59.Kc6 Ra2 60.Re8 Rxa7 61.Kd5 Ra5 62.Kc6 Ra6 63.Kb5 Ra3 64.Re4 Rb3 65.Kc6 Kf7 66.Kd7 Rd3 67.Kc6 Rc3 68.Kd5 Rd3 69.Kc4 Rd2 70.Re7 Kxe7 (0:46:14) 27750508kN
[+0.00] d=27 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra1 57.Kd4 Ra4 58.Kd3 Ra3 59.Kd4 Ra4 (0:41:31) 25012971kN
[+0.00] d=26 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra2 56.Kc3 Ra3 57.Kd4 Ra4 58.Kd3 Kh7 59.Re8 Rxa7 60.Ke4 Ra4 61.Kf5 Ra5 62.Kxf6 (0:23:50) 15118918kN
[+0.00] d=25 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 Kg6 62.Ke2 Rd4 63.Rh3 Rxg4 (0:17:10) 11476030kN
[+0.00] d=25 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 (0:15:16) 10263851kN
[+0.00] d=24 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rg8 Kh4 62.Re8 Kxg4 (0:13:15) 9214677kN
[+0.00] d=24 50.Kg2 Kg7 51.Kf2 f6 52.Ke2 Kh7 53.Kd1 Ra1 54.Kc2 Kg7 55.Kd2 Ra3 56.Re8 Rxa7 57.Ke2 Kg6 58.Rg8 Kh6 59.Ke1 Rd7 60.Rh8 Kg5 61.Rh5 Kg6 62.Kf2 Rd2 63.Kg3 Rd3 64.Kf2 Rc3 (0:11:08) 7713340kN
[+1.01] d=23 50.Kg2 Kg7 51.Kf2 Ra2 52.Ke3 Ra1 53.Kd4 Ra5 54.Kc3 Ra1 55.g5 Ra3 56.Kb4 Ra6 57.Kb3 Ra5 58.Kb4 Ra6 (0:05:43) 3932160kN
[+1.01] d=23 50.Kg2 Kg7 51.Kf2 Ra2 52.Ke3 Ra1 53.Kd4 Ra5 54.Kc3 Ra1 55.g5 Ra3 56.Kb4 Ra6 57.Kb3 Kh7 58.Kc2 Ra2 59.Kb1 Ra6 60.Kb2 Kg7 61.Kb3 (0:05:08) 3495060kN
[+1.41] d=22 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Ke1 Ra4 54.Kd2 Ra3 55.Kc2 Kg7 56.Kb2 Rg3 (0:01:52) 1152946kN
[+1.41] d=21 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Kd3 Ra3 54.Kc4 Kg7 (0:01:06) 673374kN
[+1.41] d=21 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Ra2 53.Kd3 Ra3 54.Kc4 Ra1 55.Kc5 Rc1 56.Kb6 Rb1 57.Ka5 Ra1 58.Kb5 Rb1 59.Ka4 Ra1 60.Kb3 Kg7 61.Kb4 Rb1 62.Ka4 (0:01:01) 621155kN
[+1.41] d=20 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra6 56.Kc1 Ra1 57.Kc2 Ra2 (0:00:34) 340659kN
[+1.41] d=20 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kf2 (0:00:28) 268633kN
[+1.41] d=19 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kf2 (0:00:14) 135034kN
[+1.39] d=18 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 Kh7 57.Kb4 Ra2 58.Kb5 Ra3 59.g5 Rb3 60.Kc6 Ra3 61.Kc5 Rc3 62.Kb4 Rc7 63.Kb3 (0:00:07) 66874kN
[+1.39] d=17 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 (0:00:04) 36582kN
[+1.39] d=16 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kb3 Rb5 57.Ka4 Rb2 58.Ka3 Re2 59.g5 Re5 (0:00:02) 21862kN
[+1.38] d=15 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Kg7 55.Kb2 Ra5 56.Kc3 Ra3 57.Kc4 Ra5 58.Kb4 Ra1 (0:00:01) 11327kN
[+1.15] d=14 50.Kg2 Kg7 51.Kf2 Kf6 52.Ke2 Kg7 53.Kd2 Kf6 54.Kc2 Ke7 55.g5 (0:00:00) 5192kN
Code: Select all
New game
R7/P4p2/5k2/8/6P1/r7/7K/8 w - - 0 1
Analysis by FireBird 1.2 w32 (with 5 men TribleBases and TotalBases):
<snip>
+- (2.57) Depth: 33 00:01:53 66564kN, tb=4992788
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh4 Ra4+ 5.Kh3 Ra6 6.Kg3 Ra4 7.Kf2 Ra3 8.Ke2 Kg7 9.Kd2 Ra4 10.Kc2 Ra2+ 11.Kb3 Ra6 12.Kc4 Ra2 13.Kb5 Rb2+ 14.Kc5 Ra2 15.Kb6 Rb2+ 16.Kc6 Rc2+
+- (2.57) Depth: 34 00:02:23 84254kN, tb=6299958
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh4 Ra4+ 5.Kh3 Ra6 6.Kg3 Ra4 7.Kf2 Ra3 8.Ke2 Kg7 9.Kd2 Ra4 10.Kc2 Ra2+ 11.Kb3 Ra6 12.Kc4 Ra2 13.Kb5 Rb2+ 14.Kc5 Ra2 15.Kb6 Rb2+ 16.Kc6 Rc2+
+- (2.57) Depth: 34 00:02:26 86015kN, tb=6399840
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh4 Ra4+ 5.Kh3 Ra6 6.Kg3 Ra4 7.Kf2 Ra3 8.Ke2 Kg7 9.Kd2 Ra4 10.Kc2 Ra2+ 11.Kb3 Ra6 12.Kc4 Ra2 13.Kb5 Rb2+ 14.Kc5 Rc2+ 15.Kd6 Ra2 16.Kc6 Rc2+
+- (2.57) Depth: 35 00:03:08 111mN, tb=8578003
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh4 Ra4+ 5.Kh3 Ra6 6.Kg3 Ra4 7.Kf2 Ra3 8.Ke2 Kg7 9.Kd2 Ra4 10.Kc2 Ra2+ 11.Kb3 Ra6 12.Kc4 Ra2 13.Kb5 Rb2+ 14.Kc5 Rc2+ 15.Kd6 Ra2 16.Kc6 Rc2+
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh4 Ra4+ 5.Kh3 Ra6 6.Kg3 Ra4 7.Kf2 Ra3 8.Ke2 Kg7 9.Kd2 Ra4 10.Kc2 Ra2+ 11.Kb3 Ra6 12.Kc4 Ra2 13.Kb5 Rb2+ 14.Kc5 Rc2+ 15.Kd6 Ra2 16.Kc6 Rc2+
+- (2.57) Depth: 35 00:03:11 113mN, tb=8703598Code: Select all
New game
R7/P4p2/5k2/8/6P1/r7/7K/8 w - - 0 1
Analysis by Fruit 05/11/03 (5 men EGTB):
<snip>
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Ka5 Ra1+ 14.Kb6 Rb1+ 15.Kc6 Ra1 16.Kc5 Kh7
+- (2.43) Depth: 33/73 00:18:55 1010mN, tb=461037
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Ka4 Ra1+ 14.Kb4 Rb1+ 15.Ka5 Ra1+ 16.Kb6 Rb1+
+- (2.43) Depth: 34/74 00:27:40 1450mN, tb=615544
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Kc6 Ra1 14.Kd6 Ra6+ 15.Kc5 Ra1 16.Kb4 Rb1+
+- (2.43) Depth: 35/74 00:35:08 1862mN, tb=775456
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Kc5 Rc1+ 14.Kd4 Rd1+ 15.Ke4 Ra1 16.Ke5 Ra5+
+- (2.43) Depth: 36/83 00:50:56 2728mN, tb=1004037
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Kc5 Rc1+ 14.Kd4 Rd1+ 15.Ke4 Ra1 16.Ke5 Ra5+
+- (2.43) Depth: 37/88 01:30:23 4923mN, tb=1366978
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Kc5 Rc1+ 14.Kd4 Rd1+ 15.Ke4 Ra1 16.Ke5 Ra5+
+- (2.43) Depth: 38/91 02:31:54 8357mN, tb=1809591
1.g5+ Kg7 2.Kg2 Ra6 3.Kg3 Kh7 4.Kh3 Ra4 5.Kg2 Ra6 6.Kg3 Ra4 7.Kf3 Kg7 8.Ke3 Ra1 9.Kd3 Ra2 10.Kc4 Ra5 11.Kb4 Ra1 12.Kb5 Rb1+ 13.Kc5 Rc1+ 14.Kd4 Rd1+ 15.Ke4 Ra1 16.Ke5 Ra5+
+- (2.43) Depth: 39/91 04:08:30 13924mN, tb=2373365Code: Select all
R7/P4p2/5k2/8/6P1/r7/7K/8 w - - 0 1
Analysis by Yace 0.99.87 (3-4 bitbases + 5 men EGTB):
<snip>
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Kd3 Ra3+ 6.Kc4 Ra4+ 7.Kc5 Ra3 8.Kb6 Rb3+ 9.Ka5 Ra3+ 10.Kb4 Ra2 11.Kb5 Ra3 12.Kc6 Ra1 13.Kb6 Rb1+ 14.Kc5 Ra1 15.Kc6 Ra3 16.Kb5 Rb3+
+- (2.00) Depth: 25/52 00:14:27 993mN, tb=1548836
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Kd3 Ra3+ 6.Kc4 Ra4+ 7.Kc5 Ra3 8.Kb6 Rb3+ 9.Ka5 Ra3+ 10.Kb4 Ra2 11.Kb5 Ra3 12.Kc6 Ra1 13.Kb6 Rb1+ 14.Kc5 Ra1 15.Kc6 Ra3 16.Kb5 Rb3+
+- (2.00) Depth: 25/54 00:16:32 1150mN, tb=1857872
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Ke3 Ra3+ 6.Kd4 Ra4+ 7.Kc3 Ra3+ 8.Kb4 Ra2 9.Kc5 Kh7 10.Kc6 Kg7 11.Kb7 Rb2+ 12.Ka6 Kg6
+- (2.00) Depth: 26/54 00:26:07 1803mN, tb=3071683
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Ke3 Ra3+ 6.Kd4 Ra4+ 7.Kc3 Ra3+ 8.Kb4 Ra2 9.Kc5 Kh7 10.Kc6 Kg7 11.Kb7 Rb2+ 12.Ka6 Kg6
+- (2.00) Depth: 26/56 00:31:06 2178mN, tb=3776477
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Ke3 Ra3+ 6.Kd4 Ra4+ 7.Kc3 Ra3+ 8.Kb4 Ra2 9.Kc5 Kh7 10.Kc6 Kg7 11.Kb7 Rb2+ 12.Ka6 Ra2+ 13.Kb6 Rb2+ 14.Kc5 Ra2 15.Kd5 Ra5+ 16.Kd6 Kg6
+- (2.00) Depth: 27/56 00:51:42 3584mN, tb=6252037
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Ke3 Ra3+ 6.Kd4 Ra4+ 7.Kc3 Ra3+ 8.Kb4 Ra2 9.Kc5 Kh7 10.Kc6 Kg7 11.Kb7 Rb2+ 12.Ka6 Ra2+ 13.Kb6 Rb2+ 14.Kc5 Ra2 15.Kd5 Ra5+ 16.Kd6 Kg6
+- (2.00) Depth: 27/56 01:03:37 4294mN, tb=7576988
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Ke3 Ra3+ 6.Kd4 Ra4+ 7.Kc3 Ra3+ 8.Kb4 Ra2 9.Kc5 Kh7 10.Kc6 Kg7 11.Kb7 Rb2+ 12.Ka6 Ra2+ 13.Kb6 Rb2+ 14.Kc5 Ra2 15.Kd6 Ra5 16.Kc7 Ra1
+- (2.00) Depth: 28/58 01:45:16 4294mN, tb=11805914
1.g5+ Kg7 2.Kg2 Kh7 3.Kf2 Kg7 4.Ke2 Ra4 5.Ke3 Ra3+ 6.Kd4 Ra4+ 7.Kc3 Ra3+ 8.Kb4 Ra2 9.Kc5 Kh7 10.Kc6 Kg7 11.Kb7 Rb2+ 12.Ka6 Ra2+ 13.Kb6 Rb2+ 14.Kc5 Ra2 15.Kd6 Ra5 16.Kc7 Ra1
+- (2.00) Depth: 28/58 02:05:52 4294mN, tb=13887296
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: a test position
i couldn't find any, no, & i think i tried all the big names, but not for ultra big depth.
-
metax
- Posts: 344
- Joined: Wed Sep 23, 2009 5:56 pm
- Location: Germany
Re: a test position
Well, does +0.18 count? 
-
michiguel
- Posts: 6401
- Joined: Thu Mar 09, 2006 8:30 pm
- Location: Chicago, Illinois, USA
Re: a test position
Note that this is a draw even w/o the f7 pawn (with the K in g7 of course). A classical draw position. Only if the pawn is in column f white wins.Uri Blass wrote:I wonder how much time does your favourite program need to see the draw and if tablebases are productive.
The position is from the following game
http://www.iccf-webchess.com/MakeAMove.aspx?id=234939
[D]R7/P4p2/5k2/8/6P1/r7/7K/8 w - - 0 50
Miguel