Author: Richard Pijl
Date: 23:23:30 01/19/05
Go up one level in this thread
On January 19, 2005 at 23:57:03, Jon Dart wrote:
>[D] 4R3/6p1/PK4kp/1PB2p2/8/3r4/3rp3/8 w - -
>
>How long to play a7?
>How long to give it a + score?
>
>Arasan plays a7 almost immediately but the score is still
>negative after several minutes.
>
>Pharaon 2.1 plays a7 in 24 seconds, gives a + score after
>158 seconds (Athlon 2500+).
>
>--Jon
The Baron finds both a7 and a positive score fast (P4-2.4):
ply time nodes score pv
4(10)& 0:00.39 11460 -3.02 Re8-e6 Kg6-f7 Re6-e7 Kf7-f6 Kb6-c6
Rd3-d7
4(10). 0:00.44 17510 -3.02 Re8-e6 Kg6-f7 Re6-e7 Kf7-f6 Kb6-c6
Rd3-d7
5(12)& 0:00.50 26106 -3.36 Re8-e6 Kg6-f7 Re6-e7 Kf7-f6 Kb6-c6
Rd2-a2 Kc6-b7 (f5-f4)
5(12)& 0:00.61 51028 -3.02 a6-a7 Rd3-d8 Re8-e6 Kg6-f7 Re6-e7
Kf7-f6 Kb6-c7 f5-f4 (b5-b6)
5(12). 0:00.66 57243 -3.02 a6-a7 Rd3-d8 Re8-e6 Kg6-f7 Re6-e7
Kf7-f6 Kb6-c7 f5-f4 (b5-b6)
6(13)& 0:00.83 101269 -2.64 a6-a7 Rd3-d8 Re8-e6 Kg6-f7 Re6-e7
Kf7-f6 Kb6-c7 g7-g5 b5-b6
6(13). 0:00.94 116531 -2.64 a6-a7 Rd3-d8 Re8-e6 Kg6-f7 Re6-e7
Kf7-f6 Kb6-c7 g7-g5 b5-b6
7(16)& 0:01.65 291018 -2.41 a6-a7 Rd3-d8 Re8-e6 Kg6-f7 Re6-e7
Kf7-f6 Kb6-c7 e2-e1Q Re7xe1 (Rd2-d7)
(Kc7-c6)
7(16). 0:01.76 326161 -2.41 a6-a7 Rd3-d8 Re8-e6 Kg6-f7 Re6-e7
Kf7-f6 Kb6-c7 e2-e1Q Re7xe1 (Rd2-d7)
(Kc7-c6)
8(15)& 0:03.03 690761 -2.09 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-b4
e2-e1B Bb4xe1 Rd8-a8 Kb6-b7
8(15). 0:03.46 820894 -2.09 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-b4
e2-e1B Bb4xe1 Rd8-a8 Kb6-b7
9(18)+ 0:05.00 1331223 -1.66 a6-a7 (Rd3-d8) (Re8xd8) (Rd2xd8) (Bc5-b4)
(e2-e1B) (Bb4xe1) (Rd8-a8) (Kb6-b7)
9(18)+ 0:06.21 1776750 +0.14 a6-a7 (Rd3-d8) (Re8xd8) (Rd2xd8) (Bc5-b4)
(e2-e1B) (Bb4xe1) (Rd8-a8) (Kb6-b7)
9(18)& 0:08.24 2473602 +1.17 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
f5-f4 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 Bf2-e1
9(18). 0:08.41 2521633 +1.17 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
f5-f4 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 Bf2-e1
10(20)& 0:13.90 4186772 +0.00 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
f5-f4 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 Ka6-b7
<rep>
10(20). 0:15.00 4503162 +0.00 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
f5-f4 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 Ka6-b7
<rep>
11(22)+ 0:21.26 6630483 +0.30 a6-a7 (Rd3-d8) (Re8xd8) (Rd2xd8) (Bc5-f2)
(f5-f4) (Kb6-b7) (Rd8-d7) (Kb7-a6)
(Rd7-d8) (b5-b6)
(Rd8-a8) (b6-b7)
11(22)& 0:36.69 11398912 +1.07 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
Kg6-f6 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 b5-b6
Rd8-a8 b6-b7 e2-e1Q (Bf2xe1)
11(22). 0:39.44 12178777 +1.07 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
Kg6-f6 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 b5-b6
Rd8-a8 b6-b7 e2-e1Q (Bf2xe1)
12(23)& 0:59.21 18475504 +1.18 a6-a7 Rd3-d8 Re8xd8 Rd2xd8 Bc5-f2
Kg6-f7 Kb6-b7 Rd8-d7 Kb7-a6 Rd7-d8 b5-b6
Rd8-a8 b6-b7 e2-e1Q Bf2xe1
13(25)+ 4:25.79 79006524 +1.77 a6-a7 (Rd3-d8) (Re8xd8) (Rd2xd8) (Bc5-f2)
(Kg6-f7) (Kb6-b7) (Rd8-d7) (Kb7-a6)
(Rd7-d8) (b5-b6)
(Rd8-a8) (b6-b7) (e2-e1Q) (Bf2xe1)
13(25)& 6:13.83 115402029 +2.09 a6-a7 Rd2-a2 Re8xe2 Ra2xe2 a7-a8Q
Re2-e5 Qa8-g2 Kg6-f7 Qg2-b7 Kf7-f6 Bc5-f8
Rd3-g3 Bf8-d6 Re5-e6 Kb6-c5 Rg3-b3
13(25). 6:22.40 117844880 +2.09 a6-a7 Rd2-a2 Re8xe2 Ra2xe2 a7-a8Q
Re2-e5 Qa8-g2 Kg6-f7 Qg2-b7 Kf7-f6 Bc5-f8
Rd3-g3 Bf8-d6 Re5-e6 Kb6-c5 Rg3-b3
14(27)& 9:22.22 174132609 +2.26 a6-a7 Rd2-a2 Re8xe2 Ra2xe2 a7-a8Q
Re2-e5 Qa8-g2 Kg6-f7 Qg2-b7 Kf7-f6 Kb6-a5
Re5-e6 Qb7-c7 Rd3-d1 b5-b6 Rd1-a1 Ka5-b5
Ra1-b1
14(28). 9:38.37 179156486 +2.26 a6-a7 Rd2-a2 Re8xe2 Ra2xe2 a7-a8Q
Re2-e5 Qa8-g2 Kg6-f7 Qg2-b7 Kf7-f6 Kb6-a5
Re5-e6 Qb7-c7 Rd3-d1 b5-b6 Rd1-a1 Ka5-b5
Ra1-b1
15(30)& 17:32.76 325146338 +2.28 a6-a7 Rd2-a2 Re8xe2 Ra2xe2 a7-a8Q
Re2-e5 Qa8-g2 Kg6-f7 Qg2-b7 Kf7-f6 Bc5-f8
Rd3-g3 Kb6-a7 Rg3-g4 Qb7-b6 Kf6-g5 Qb6-a6
g7-g6 b5-b6
15(32). 18:28.95 341936552 +2.28 a6-a7 Rd2-a2 Re8xe2 Ra2xe2 a7-a8Q
Re2-e5 Qa8-g2 Kg6-f7 Qg2-b7 Kf7-f6 Bc5-f8
Rd3-g3 Kb6-a7 Rg3-g4 Qb7-b6 Kf6-g5 Qb6-a6
g7-g6 b5-b6
Richard.
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