Author: Ernst Walet
Date: 03:02:26 02/10/01
Go up one level in this thread
On February 09, 2001 at 21:41:20, Dieter Buerssner wrote:
>On February 09, 2001 at 20:53:31, Michael Fuhrmann wrote:
>
>>Is this position really a draw? I don't have all tablebases. (From a game
>>between Little Goliath, white, and crafty, black. Was drawn by repetition.)
>>
>> 2R5/8/8/1k3p2/8/5r1p/7K/8 b - - 0 106
>
>Yace, equipped with KRPKR as the only relevant 5-men table, thinks after 1 1/2
>minutes, that it is a draw.
>
> 4908091 1:29.4 0.00 17t 1...Kb6 2.Rc4 f4 3.Rc2 Kb7 4.Rc4 Ka7 5.Rc7+ Ka8
> 6.Rc8+ Ka7 7.Rc7+ {160}
>
>(AMD K6-2 475, 10 M hash)
>
>The score and the PV did not change whithin 10 minutes, after which depth 23 was
>completed.
>
>Regards,
>Dieter
And with 128MB hash on a PIII-500E with all 3+4+5 TBs just 18 seconds at ply 15!
Ernst.
1264413 13.835 0.76 15-- 1...f4 2.Rc7 Rd3 3.Rf7 f3
1366308 14.592 0.00 15t 1...f4 2.Rc7 Rd3 3.Rf7 f3 4.Kxh3 {EGTB} 4...Re3
5.Rg7 f2+ 6.Kg2! f1=Q+ 7.Kxf1! Rf3+ 8.Kg1 Rh3
9.Rg8 Rh4 10.Rf8 Rh5 11.Rg8 Rh6 12.Rf8 Rh7
13.Rg8 Rf7 14.Rh8 Rg7+ 15.Kh1 Rf7 16.Rg8 Rh7+
17.Kg1 Rf7 18.Rh8 Rg7+ 19.Kh1 Rf7 20.Rg8 Rh7+
21.Kg1 {repetition} {0}
1430137 15.215 0.01 15t+ 1...Kb4 2.Rc7
1589591 16.007 1.79 15++ 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Kg1
1768772 17.774 0.00 15t 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Rc4 Kb2 5.Rc5 Ka3
6.Rc1 Rd3 7.Rf1 Kb2 8.Rxf5 {EGTB} 8...Re3 9.Rg5
Rf3 10.Rh5 Rf4 11.Rh6 Rg4 12.Rh7 Rg5 13.Rh8 Rg6
14.Rf8 Rh6 15.Rg8 Rh7 16.Rf8 Rg7 17.Rh8 Rf7
18.Rg8 Rh7 19.Rf8 Rg7 20.Rh8 Rf7 21.Rg8 Rh7
{repetition} {80}
1922740 18.873 0.00 15. 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Rc4 Kb2 5.Rc5 Ka3
6.Rc1 Rd3 7.Rf1 Kb2 8.Rxf5 {EGTB} 8...Re3 9.Rg5
Rf3 10.Rh5 Rf4 11.Rh6 Rg4 12.Rh7 Rg5 13.Rh8 Rg6
14.Rf8 Rh6 15.Rg8 Rh7 16.Rf8 Rg7 17.Rh8 Rf7
18.Rg8 Rh7 19.Rf8 Rg7 20.Rh8 Rf7 21.Rg8 Rh7
{repetition} {80}
2167168 20.385 0.00 16t 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Rc4 Kb2 5.Rc5 Ka3
6.Rc1 Rd3 7.Rf1 Kb2 8.Rxf5 {EGTB} 8...Re3 9.Rg5
Rf3 10.Rh5 Rf4 11.Rh6 Rg4 12.Rh7 Rg5 13.Rh8 Rg6
14.Rf8 Rh6 15.Rg8 Rh7 16.Rf8 Rg7 17.Rh8 Rf7
18.Rg8 Rh7 19.Rf8 Rg7 20.Rh8 Rf7 21.Rg8 Rh7
{repetition} {80}
2294165 21.379 0.00 16. 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Rc4 Kb2 5.Rc5 Ka3
6.Rc1 Rd3 7.Rf1 Kb2 8.Rxf5 {EGTB} 8...Re3 9.Rg5
Rf3 10.Rh5 Rf4 11.Rh6 Rg4 12.Rh7 Rg5 13.Rh8 Rg6
14.Rf8 Rh6 15.Rg8 Rh7 16.Rf8 Rg7 17.Rh8 Rf7
18.Rg8 Rh7 19.Rf8 Rg7 20.Rh8 Rf7 21.Rg8 Rh7
{repetition} {80}
2647204 23.473 0.00 17t 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Rc4 Kb2 5.Rc5 Ka3
6.Rc1 Rd3 7.Rf1 Kb2 8.Rxf5 {EGTB} 8...Re3 9.Rg5
Rf3 10.Rh5 Rf4 11.Rh6 Rg4 12.Rh7 Rg5 13.Rh8 Rg6
14.Rf8 Rh6 15.Rg8 Rh7 16.Rf8 Rg7 17.Rh8 Rf7
18.Rg8 Rh7 19.Rf8 Rg7 20.Rh8 Rf7 21.Rg8 Rh7
{repetition} {80}
2757087 24.385 0.00 17. 1...Kb4 2.Rc7 Kb3 3.Rc1 Ka2 4.Rc4 Kb2 5.Rc5 Ka3
6.Rc1 Rd3 7.Rf1 Kb2 8.Rxf5 {EGTB} 8...Re3 9.Rg5
Rf3 10.Rh5 Rf4 11.Rh6 Rg4 12.Rh7 Rg5 13.Rh8 Rg6
14.Rf8 Rh6 15.Rg8 Rh7 16.Rf8 Rg7 17.Rh8 Rf7
18.Rg8 Rh7 19.Rf8 Rg7 20.Rh8 Rf7 21.Rg8 Rh7
{repetition} {80}
3066615 25.455 0.40 18++ 1...Kb4 2.Rc7 Kb3 3.Rc1 f4 4.Rc7
3329194 27.801 0.00 18t 1...Kb4 2.Rc7 Kb3 3.Rc1 f4 4.Rc7 Kb2 5.Rc5 Kb1
6.Rc4 Rd3 7.Rxf4 {EGTB} 7...Re3 8.Rg4 Rf3 9.Rh4
Rf5 10.Rh6 Rg5 11.Rh7 Rg6 12.Rh8 Rg7 13.Rf8 Rh7
14.Rg8 Rf7 15.Rh8 Rg7 16.Rf8 Rh7 17.Rg8 Rf7
18.Rh8 Rg7 {repetition} {80}
3473553 29.086 0.00 18. 1...Kb4 2.Rc7 Kb3 3.Rc1 f4 4.Rc7 Kb2 5.Rc5 Kb1
6.Rc4 Rd3 7.Rxf4 {EGTB} 7...Re3 8.Rg4 Rf3 9.Rh4
Rf5 10.Rh6 Rg5 11.Rh7 Rg6 12.Rh8 Rg7 13.Rf8 Rh7
14.Rg8 Rf7 15.Rh8 Rg7 16.Rf8 Rh7 17.Rg8 Rf7
18.Rh8 Rg7 {repetition} {80}
4058591 34.204 0.00 19t 1...Kb4 2.Rc7 Kb3 3.Rc1 f4 4.Rc7 Kb2 5.Rc5 Kb1
6.Rc4 Rd3 7.Rxf4 {EGTB} 7...Re3 8.Rg4 Rf3 9.Rh4
Rf5 10.Rh6 Rg5 11.Rh7 Rg6 12.Rh8 Rg7 13.Rf8 Rh7
14.Rg8 Rf7 15.Rh8 Rg7 16.Rf8 Rh7 17.Rg8 Rf7
18.Rh8 Rg7 {repetition} {80}
4319030 36.324 0.00 19. 1...Kb4 2.Rc7 Kb3 3.Rc1 f4 4.Rc7 Kb2 5.Rc5 Kb1
6.Rc4 Rd3 7.Rxf4 {EGTB} 7...Re3 8.Rg4 Rf3 9.Rh4
Rf5 10.Rh6 Rg5 11.Rh7 Rg6 12.Rh8 Rg7 13.Rf8 Rh7
14.Rg8 Rf7 15.Rh8 Rg7 16.Rf8 Rh7 17.Rg8 Rf7
18.Rh8 Rg7 {repetition} {80}
4595100 39.451 0.00 19f. 1...Kb4 2.Rc7 Kb3 3.Rc1 f4 4.Rc7 Kb2 5.Rc5 Kb1
6.Rc4 Rd3 7.Rxf4 {EGTB} 7...Re3 8.Rg4 Rf3 9.Rh4
Rf5 10.Rh6 Rg5 11.Rh7 Rg6 12.Rh8 Rg7 13.Rf8 Rh7
14.Rg8 Rf7 15.Rh8 Rg7 16.Rf8 Rh7 17.Rg8 Rf7
18.Rh8 Rg7 {repetition} {80}
4595100 Nodes, 4.81% Leavenodes, 116476 Nodes/sec
1463725 eval, 100.00% score, 22243155 genmoves, 1.57% captures le 87/180
ext: pawn 17034, rcp 4270, chk 335736, repchk 36177, null 5439, prune 368124
htable: 2151555 store, 818 rejected, 4595425 probe, 79.6% f/p, 170.0% f/s
entries 11184810 age 1 renew 0
egtb probes 65857, found 42614
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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