Is there a convincing solution for Arasan 4.72?

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Dann Corbit
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Is there a convincing solution for Arasan 4.72?

Post by Dann Corbit »

[D]6k1/p4pp1/P1rbpn2/3q4/3P3R/2p1B3/r1R2PPP/3QN1K1 b - - bm Rxc2; id "arasan4.72";

Code: Select all

5) Rxc2; id "arasan4.72 
    Searching move: Ra2xc2
    Best move (Rybka v1.2.w32): Ra2xa6
    Not found in: 2:30:00
      2	00:00	         256	262.144	+1.32	Ra2xa6
      3	00:00	         544	557.056	+1.21	Ra2xa6
      3	00:00	         800	51.200	+1.30	Qd5b3
      4	00:00	       1.768	56.576	+1.25	Qd5b3 Be3g5
      5	00:00	       2.880	61.440	+1.25	Qd5b3 Be3g5 Ra2xc2
      6	00:01	       6.904	75.209	+1.17	Qd5b3 Be3g5 Ra2xc2 Qd1xc2 Qb3xc2 Ne1xc2 Nf6d5
      7	00:01	      16.112	75.336	+1.26	Qd5b3 Be3g5 Rc6xa6 Qd1d3 Qb3b1
      8	00:01	      29.888	78.274	+1.11	Qd5b3 Be3g5 Ra2b2 Qd1d3 Rb2xc2 Bg5xf6
      9	00:02	     103.368	80.616	+0.94	Qd5b3 Qd1f3 Ra2a1 Rc2c1 Ra1xc1 Be3xc1 Rc6xa6 Qf3h3
      9	00:03	     163.240	77.495	+1.20	Ra2xa6 Ne1d3 Ra6a4 g2g3 Rc6c8 Rc2e2 Ra4a5
     10	00:04	     245.544	79.644	+1.17	Ra2xa6 Ne1d3 Ra6a4 g2g3 Rc6c8 Rc2e2 Ra4a5 Re2c2
     11	00:11	     783.312	79.338	+1.24	Ra2xa6 Ne1d3 Ra6a4 g2g3 Rc6c8 Qd1c1 Qd5a5 Qc1e1 Nf6d5
     12	00:16	   1.211.512	79.316	+1.19	Ra2xa6 Ne1d3 Ra6a4 g2g3 Rc6c8 Qd1c1 Qd5a5 Qc1e1 Ra4a1 Be3c1
     13	00:49	   3.790.880	79.780	+1.27	Ra2xa6 Ne1d3 Rc6c4 g2g3 g7g5 Rh4h3 Qd5f5 Qd1f1 Ra6a4 Rh3h6 Kg8g7
     14	01:07	   5.366.064	82.031	+1.25	Ra2xa6 Ne1d3 Rc6c4 g2g3 g7g5 Rh4h3 Qd5f5 Qd1f1 Ra6a4 Rh3h6 Kg8g7 Rh6h3
     15	02:17	  11.599.288	86.975	+1.33	Ra2xa6 Ne1d3 Ra6a3 Rh4h3 a7a5 f2f3 a5a4 Qd1c1 Ra3b3 Nd3c5 Rb3b4 Nc5d3 Rb4c4
     16	04:49	  25.461.656	90.471	+1.37	Ra2xa6 Kg1f1 Ra6a2 Rc2xa2 Qd5xa2 Be3c1 Qa2c4+ Qd1d3 c3c2 Qd3xc4 Rc6xc4 Kf1e2 Nf6d5 Ne1d3
     17	09:37	  51.554.512	91.520	+1.40	Ra2xa6 Ne1d3 Ra6a3 Qd1e1 Qd5f5 Qe1d1 Nf6d5 Rh4h5 Ra3a1 Be3c1 Qf5e4 g2g3 Qe4xd4 Rh5h4
     18	17:48	  94.891.448	91.052	+1.46	Ra2xa6 Ne1d3 Ra6a3 g2g3 g7g5 Rh4h6 Kg8g7 Rh6h3 Qd5f5 Kg1g2 Rc6b6 f2f3 Nf6d5 Qd1e2
     19	26:13	 144.976.568	94.397	+1.46	Ra2xa6 Ne1d3 Ra6a2 Rc2xa2 Qd5xa2 Nd3c1 c3c2 Qd1f3 Qa2a5 Kg1f1 Qa5b5+ Kf1g1 Qb5b4 g2g3
     20	53:52	 302.284.360	95.789	+1.45	Ra2xa6 Kg1f1 Ra6a3 Qd1d3 g7g5 Rh4h3 a7a5 Be3c1 Ra3b3 Qd3e3 Bd6f4 Qe3f3 Qd5xf3 Rh3xf3
     21	1:18:44	 450.411.536	97.642	+1.48	Ra2xa6 Kg1f1 Ra6a3 Qd1d3 Ra3a1 Rc2c1 Ra1xc1 Be3xc1 g7g5 Rh4h3 c3c2 Qd3f3 Kg8g7 Ne1d3
   11/22/2007 6:52:44 AM, Time for this analysis: 02:30:01, Rated time: 7:54:19
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pedrox
Posts: 1056
Joined: Fri Mar 10, 2006 6:07 am
Location: Basque Country (Spain)

Re: Is there a convincing solution for Arasan 4.72?

Post by pedrox »

Code: Select all

FEN: 6k1/p4pp1/P1rbpn2/3q4/3P3R/2p1B3/r1R2PPP/3QN1K1 b - - 0 1 

DanaSah v.3.41 FRC:
   2	00:00	         407	407	+1,22	Taxa6 Cd3
   3	00:00	         791	791	+1,45	Taxa6 Cd3 Ta2
   4	00:00	       3.420	3.420	+1,37	Taxa6 Cd3 Tab6 f3
   5	00:00	       8.885	888.500	+1,32	Taxa6 Cd3 Tab6 Da1 Dc4
   6	00:00	      22.799	759.966	+1,34	Taxa6 Cd3 Tab6 Da1 Dc4 Cc5 Axc5 dxc5 Dxh4 cxb6
   6	00:00	      63.991	914.157	+1,69	Db3 Ag5 Cd5 Th5 Tcxa6 Dd3
   7	00:00	     122.321	1.019.341	+1,30	Db3 Ag5 Cd5 Dd3 g6 Txa2 Dxa2 Cc2 Txa6
   7	00:00	     170.869	949.272	+1,40	Txc2 Dxc2 Da5 Cf3 Da1+ Ac1 Tc4 Cg5 Dxa6
   8	00:00	     245.696	944.984	+1,28	Txc2 Dxc2 Da5 Cd3 Da1+ Ac1 Tc4 Db3 Dxa6 Ae3
   8	00:00	     350.313	898.238	+1,47	Taxa6 Cd3 Tab6 Dc1 Dc4 Cc5 Axc5 dxc5 Dxh4 cxb6
   9	00:00	     744.565	942.487	+1,65	Db3 Ag5 Txc2 Cxc2 Cd5 Dc1 Txa6 Ce3 Ta2 Cxd5 Dxd5
  10	00:01	   1.192.421	931.578	+1,76	Db3 Df3 Ta1 Tc1 Tcxa6 Cd3 Txc1+ Axc1 Dd5 Dxd5 exd5 Ae3
  11	00:01	   2.106.474	957.488	+1,60	Db3 Df3 Ta1 Tc1 Txc1 Axc1 Txa6 Da8+ Db8 Dxb8+ Axb8 Th3 Cd5 Cd3
  12	00:04	   4.122.678	981.590	+1,64	Txc2 Dxc2 Da5 Th3 Txa6 Ac1 Tc6 Cf3 Tc8 Cg5 Df5 Da2 a5
  13	00:06	   6.594.436	984.244	+1,52	Txc2 Dxc2 Da5 Ac1 Txa6 Th3 Tc6 Cf3 Tc4 Cg5 Da4 Dxa4 Txa4 Txc3 Txd4
  14	00:21	  20.143.929	928.291	+1,92	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Txa6 Axf6 gxf6 Tg4+ Rh7 h4
  15	00:29	  26.966.589	929.882	+2,00	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Txa6 Axf6 gxf6 Th5 Ta2 Ce3
  16	00:49	  44.990.199	918.167	+2,09	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Txa6 Axf6 gxf6 Re2 Tc6 Tg4+ Rh7 h4
  17	01:11	  64.468.274	908.003	+2,22	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Cd5 Te4 Txa6 Rg1 Ta2 Te2 Tb2
  18	01:42	  90.755.719	889.761	+2,21	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Cd5 Te4 Txa6 Rg1 Ta2 Te2 Tb2 f3
  19	04:02	 211.379.761	873.470	+2,40	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Cd5 Ce1 Txa6 Th3 f6 Ac1 Ta1 Cd3 Tb1
  20	05:35	 290.712.798	867.799	+2,40	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Cd5 Ce1 Txa6 Th3 f6 Ac1 Ta1 Cd3 c2 Rg1 Af4
  21	08:24	 438.434.060	869.908	+2,40	Txc2 Dxc2 Df5 Da4 Db1 Rf1 Tc8 Dc2 Dxc2 Cxc2 Tc6 Ag5 Cd5 Ce1 Txa6 Th5 Ta1 Re2 Ab4 Cd3 c2 h3 Ta2 Rf1
  22	24:10	1.206.298.677	831.930	+2,40	Txc2 Dxc2 Df5 Rf1 Dxc2 Cxc2 Txa6 Re2 Ta2 Rd3 Cd5 Th5 Rf8 Ac1 Re7 Th8 g6 g3 Tb2 Ae3 Tb1 f3 Rd7 Re2 Cxe3 Cxe3
Rxc2 --> +2,40
Ra2xa6 --> +1,88
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Eelco de Groot
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Joined: Sun Mar 12, 2006 2:40 am
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Re: Is there a convincing solution for Arasan 4.72?

Post by Eelco de Groot »

Curiously Glaurung Mjolnir has a different way of handling the position than all other settings I tried. It is not bad I think, other programs try this move too but Glaurung just sticks with it and it gets a high score:


[D]6k1/p4pp1/P1rbpn2/3q4/3P3R/2p1B3/r1R2PPP/3QN1K1 b - -

Engine: Glaurung 2.0.1 Mjolnir 001b (256 MB)
by Tord Romstad

2.00 0:00 +1.37 1...Raxa6 2.Nf3 (532) 1

2.00 0:00 +1.52 1...Rcxa6 2.Nf3 (635) 2

3.00 0:00 +1.56 1...Rcxa6 2.Qd3 Rxc2 3.Nxc2 (1.732) 5

4.00 0:00 +1.41 1...Rcxa6 2.Qd3 Rxc2 3.Nxc2 Rc6 (3.444) 11

4.00 0:00 +1.80 1...Raxa6 2.Qd3 Qc4 3.Rh3 Qxd3
4.Nxd3 (4.265) 14

5.00 0:00 +1.64 1...Raxa6 2.Nf3 Ne4 3.Bf4 Bxf4
4.Rxf4 (7.665) 24

5.00 0:00 +1.74 1...Qb3 2.Qe2 Rxc2 3.Nxc2 Qb1+ 4.Ne1 Qf5 (20.095) 61

6.00 0:00 +1.80 1...Qb3 2.Bg5 Rcxa6 3.Bxf6 Rxc2
4.Nxc2 gxf6 5.Rg4+ Kf8 (29.071) 84

6.00 0:00 +1.88 1...Qc4 2.Rxa2 Qxa2 3.Nd3 c2 4.Qc1 Rxa6 (35.191) 98

7.00 0:00 +1.92 1...Qc4 2.Rxa2 Qxa2 3.Bg5 c2 4.Qc1 Nd5
5.Re4 (50.437) 134

8.00 0:00 +1.98 1...Qc4 2.Rxa2 Qxa2 3.Nd3 c2 4.Qc1 Qb1
5.Ne1 Qxc1 6.Bxc1 (92.482) 211

9.00 0:00 +1.98 1...Qc4 2.Rxa2 Qxa2 3.Bc1 Qb1 4.Nd3 c2
5.Qf1 Qa1 6.Qe2 Qxa6 (178.233) 317

10.00 0:00 +1.98 1...Qc4 2.Rxa2 Qxa2 3.Bc1 Qb1 4.Nd3 c2
5.Qf1 Qa1 6.Qe2 Qxa6 (345.339) 425

11.01 0:02 +1.64 1...Qc4 2.Bg5 Rxc2 3.Nxc2 Rb6 4.Bxf6 gxf6
5.Rh3 Rb2 6.Re3 Ra2 7.Rf3 Rb2 8.Rxf6 Qxa6 (1.163.656) 581

11.02 0:02 +1.94 1...Qb3 2.Bg5 Rcxa6 3.Qd3 Qb1 4.Kf1 Rxc2
5.Qxa6 Be7 6.Bxf6 gxf6 7.Qc8+ Kg7
8.Qh8+ Kg6 (1.419.620) 601

12.01 0:03 +1.94 1...Qb3 2.Bg5 Rxc2 3.Bxf6 gxf6
4.Qg4+ Kf8 5.Rh8+ Ke7 6.Qg8 Qb8
7.Qxb8 Bxb8 8.Nxc2 Bf4 9.Rh3 Bd2
10.Nb4 (2.029.617) 624

13.01 0:05 +2.00 1...Qb3 2.Bg5 Rxc2 3.Bxf6 gxf6
4.Qg4+ Kf8 5.Rh8+ Ke7 6.Qg8 Qb8
7.Qxb8 Bxb8 8.Nxc2 Bf4 9.Rh3 Bd2
10.Nb4 Rb6 (3.473.444) 655

14.01 0:10 +2.13 1...Qb3 2.Bg5 Rxc2 3.Bxf6 gxf6
4.Qg4+ Kf8 5.Rh8+ Ke7 6.Qg8 Qb8
7.Qxb8 Bxb8 8.Nxc2 Bf4 9.Ra8 Rxa6
10.Rc8 Bd2 11.Rc7+ Kd6 12.Rxf7 (7.290.874) 689

15.01 0:17 +2.11 1...Qb3 2.Bg5 Rxc2 3.Bxf6 gxf6
4.Qg4+ Kf8 5.Rh8+ Ke7 6.Qg8 Qb8
7.Qxb8 Bxb8 8.Nxc2 Bf4 9.Kf1 Rxa6
10.Ke2 Rb6 11.Kd3 Rb3 (12.186.120) 703

16.01 0:45 +1.98 1...Qb3 2.Bg5 Rxc2 3.Bxf6 gxf6
4.Qg4+ Kf8 5.Rh8+ Ke7 6.Qg8 Qb8
7.Qxb8 Bxb8 8.Nxc2 Bf4 9.Kf1 Rxa6
10.Ke2 Rb6 11.Kd3 Rb3 12.h4 (32.778.417) 712

17.01 3:24 +2.52 1...Qb3 2.Bg5 Rb2 3.Qd3 Rxc2 4.Bxf6 gxf6
5.Qxc2 Qxc2 6.Nxc2 Rb6 7.Rg4+ Kf8
8.Re4 Rxa6 9.Re3 Rc6 10.h4 Ke7 11.h5 (145.054.662) 710

18.01 4:08 +2.64 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kf3 f6 9.Bc1 Kf7 10.Ne3 g5 11.Rh8 Nf4
12.Rh7+ Kg6 (178.442.505) 716

19.01 5:44 +2.56 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kf3 f6 9.Bc1 g5 10.Rh3 Kf7 11.Ke4 Kg6
12.Be3 (249.992.941) 725

20.01 9:00 +2.64 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kf3 f6 9.Bc1 g5 10.Rh3 Kf7 11.Ke4 Kg6
12.Be3 Rb6 (398.743.751) 737

21.01 30:19 +2.84 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kd3 Ra2 9.Be3 a5 10.Rh5 Kf8 11.Rh7 Nb4+
12.Nxb4 axb4 13.Kc4 c2 14.Bc1 (1.329.614.109) 730


Eelco
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Eelco de Groot
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Re: Is there a convincing solution for Arasan 4.72?

Post by Eelco de Groot »

The output after 1 hour was:


22.01 63:50 +3.00 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kd3 Ra2 9.Be3 a5 10.Rh5 Kf8
11.Rxd5 exd5 12.Kxc3 a4 13.h3 Ke7 (2.814.439.246) 734

This is the output from Glaurung 2.0.1 in the default setting, it finds Rxc2 very fast but then... :P :


6k1/p4pp1/P1rbpn2/3q4/3P3R/2p1B3/r1R2PPP/3QN1K1 b - -

Engine: Glaurung 2.0.1 default (256 MB)
by Tord Romstad

5.00 0:00 +1.74 1...Qb3 2.Qe2 Rxc2 3.Nxc2 Qb1+ 4.Ne1 Qf5 (19.565) 56

6.00 0:00 +1.80 1...Qb3 2.Bg5 Rcxa6 3.Bxf6 Rxc2
4.Nxc2 gxf6 5.Rg4+ Kf8 (28.833) 80

6.00 0:00 +1.88 1...Qc4 2.Rxa2 Qxa2 3.Nd3 c2 4.Qc1 Rxa6 (34.748) 92

7.00 0:00 +1.96 1...Qc4 2.Rxa2 Qxa2 3.Bg5 c2 4.Qc1 Qb1
5.Rh3 Qxc1 6.Bxc1 (52.543) 129

8.00 0:00 +1.98 1...Qc4 2.Rxa2 Qxa2 3.Nd3 c2 4.Qc1 Qb1
5.Ne1 Qxc1 6.Bxc1 (86.095) 190

9.00 0:00 +1.98 1...Qc4 2.Rxa2 Qxa2 3.Bc1 Qb1 4.Nd3 c2
5.Qf1 Qa1 6.Qe2 Qxa6 (163.155) 282

10.00 0:00 +1.98 1...Qc4 2.Rxa2 Qxa2 3.Bc1 Qb1 4.Nd3 c2
5.Qf1 Qa1 6.Qe2 Qxa6 (329.026) 389

11.01 0:02 +1.66 1...Qc4 2.Bg5 Rxc2 3.Nxc2 Rb6 4.Bxf6 gxf6
5.Rh3 Rb2 6.Qg4+ Kf8 7.Qd1 Ra2
8.Rh8+ Ke7 (1.091.914) 537

12.01 0:05 +1.72 1...Qc4 2.Bg5 Rxc2 3.Nxc2 Rb6 4.Bxf6 gxf6
5.Rh3 Rb2 6.Qg4+ Kf8 7.Qd1 Ra2 8.Rh6 Ke7 (3.013.007) 596

12.03 0:06 +1.82 1...Raxa6 2.Qc1 Qa5 3.Nd3 Nd5 4.Qf1 Rcb6
5.Rc1 Qa2 6.Ne5 Bxe5 7.dxe5 Rb2 (3.737.942) 604

13.01 0:08 +1.84 1...Raxa6 2.Qc1 Qa5 3.Bg5 Nd5 4.Re2 g6
5.Nc2 Rab6 6.Qe1 Rb2 7.Ne3 Rxe2
8.Qxe2 (5.064.882) 615

14.01 0:14 +1.76 1...Raxa6 2.Qc1 Qa5 3.Bg5 Nd5 4.Qd1 f6
5.Qe2 Be7 6.Be3 Qa1 7.Rc1 Qb2 8.Nc2 (8.939.369) 628

14.03 0:22 +1.80 1...Qa5 2.Bc1 Rxc2 3.Qxc2 Qxa6 4.Nf3 Qb5
5.Ng5 Qf5 6.Qxf5 exf5 7.Kf1 Nd5
8.Ke2 a5 9.Rh7 (14.416.484) 638

14.10 0:26 +1.88 1...Rxc2 2.Qxc2 Qc4 3.g3 Rxa6 4.d5 Qxd5
5.Qxc3 Rc6 6.Qd3 Qxd3 7.Nxd3 a6
8.Kg2 Nd5 (16.796.618) 645

15.01 0:30 +2.11 1...Rxc2 2.Qxc2 Qc4 3.d5 Qxd5 4.g3 g6
5.Nd3 Qa5 6.Ra4 Qc7 7.Bd4 Nd5 8.h3 Qd7 (19.867.884) 651

16.01 0:43 +2.31 1...Rxc2 2.Qxc2 Qc4 3.d5 Qxd5 4.g3 e5
5.f3 g6 6.Ra4 Qb5 7.Nd3 Nd5 8.Bxa7 Rxa6
9.Rxa6 Qxa6 (28.709.113) 662

17.01 1:23 +2.11 1...Rxc2 2.Qxc2 Qc4 3.g3 Qxa6 4.Bc1 Qb5
5.Nf3 Qf5 6.Qxf5 exf5 7.Kf1 Ra6
8.Ne5 Nd5 9.Ke2 Ra2+ 10.Kf3 a5 (56.373.911) 674

18.01 2:49 +2.09 1...Rxc2 2.Qxc2 Qf5 3.Qxf5 exf5
4.Kf1 Nd5 5.Nc2 Rxa6 6.Ke2 Ra2 7.Kd3 a5
8.h3 f4 9.Bc1 f3 10.gxf3 Nb4+
11.Nxb4 axb4 (116.890.461) 689

19.01 4:42 +2.15 1...Rxc2 2.Qxc2 Qf5 3.Qxf5 exf5
4.Kf1 Nd5 5.Nc2 Rxa6 6.Ke2 Ra2 7.Kd3 a5
8.h3 Nb4+ 9.Nxb4 axb4 10.d5 c2
11.Rh5 f4 12.Bc1 (196.093.963) 693

19.03 7:13 +2.56 1...Qb3 2.Bg5 Rb2 3.Qd3 Rxc2 4.Bxf6 gxf6
5.Qxc2 Qxc2 6.Nxc2 Rxa6 7.Rh3 Rc6
8.Kf1 a5 9.Ke2 a4 10.Rh4 a3 11.Rg4+ Kf8
12.Kd3 (300.535.123) 692

20.01 10:22 +2.58 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kf3 f6 9.Bc1 g5 10.Rh3 Rb6 11.Ne3 a5
12.Nxd5 exd5 (434.329.375) 697

21.01 16:21 +2.72 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kf3 f6 9.Bc1 g5 10.Rh3 Ra2 11.Ne3 f5
12.g4 Nf4 (688.033.291) 700

22.01 41:22 +2.94 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Rh3 Ra2 9.Kd3 a5 10.Be3 Nb4+
11.Nxb4 axb4 12.Kc4 Ra3 13.Bg5 c2
14.Rxa3 bxa3 (1.727.426.963) 695

23.01 93:22 +2.98 1...Qb3 2.Bg5 Rb2 3.Qd3 Qxc2 4.Nxc2 Rb1+
5.Qf1 Rxf1+ 6.Kxf1 Nd5 7.Ke2 Rxa6
8.Kd3 Ra2 9.Be3 a5 10.Ne1 Rb2 11.Nc2 a4
12.Bc1 Rb8 13.Rh3 Kf8 14.Rh8+ Ke7 (3.878.893.309) 692


Eelco
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jdart
Posts: 4359
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: Is there a convincing solution for Arasan 4.72?

Post by jdart »

I'd have to say "no, not convincing". Arasan, dual Xeon 3GHz, 1hr/move:

"arasan4.72" bm Rxc2
result: Raxa6 3600 seconds. score: +2.31 2331141218 nodes. ** error

Raxa6 Qc1 Ba3 Qd1 Bb2 Re2 Ra1 Qc2 Rb6 Rh3 a5 Bd2 Qc4 Be3 Kf8 Rh8+ Ng8
result(2): Rxc2 3600 seconds. score: +2.19 2582150708 nodes.
++ correct
Rxc2 Qxc2 Qf5 Qxf5 exf5 Kf1 c2 Bc1 Nd5 Nd3 Rxa6 Ke2 Rb6 Kd2 Rc6 Ke2 a5
result(3): Ra3 3600 seconds. score: +1.88 2450668336 nodes.
** error
Ra3 Bc1 Raxa6 Rh3 Bb4 Bf4 Qf5 Nd3 Nd5 Rf3 Qh5 Bg3 Bd6 Ne5 Bxe5 Bxe5

I'll probably remove this test from the next revision (I have also added some).
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