Test Position

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kgburcham
Posts: 2016
Joined: Sun Feb 17, 2008 4:19 pm

Test Position

Post by kgburcham »

Nd4
[d] 7b/8/kq6/8/8/1N2R3/K2P4/8 w - -
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michiguel
Posts: 6401
Joined: Thu Mar 09, 2006 8:30 pm
Location: Chicago, Illinois, USA

Re: Test Position

Post by michiguel »

kgburcham wrote:Nd4
[d] 7b/8/kq6/8/8/1N2R3/K2P4/8 w - -
Beautiful. Engines generally have lots of troubles with this type of positions. Mine has no clue and I have to feed it 5 plies into the solution to see it.

Miguel
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zullil
Posts: 6442
Joined: Tue Jan 09, 2007 12:31 am
Location: PA USA
Full name: Louis Zulli

Re: Test Position

Post by zullil »

What a clever problem! Crafty-22.8 finds the draw:

Code: Select all

White(1): display

       +---+---+---+---+---+---+---+---+
    8  |   | . |   | . |   | . |   |<B>|
       +---+---+---+---+---+---+---+---+
    7  | . |   | . |   | . |   | . |   |
       +---+---+---+---+---+---+---+---+
    6  |<K>|<Q>|   | . |   | . |   | . |
       +---+---+---+---+---+---+---+---+
    5  | . |   | . |   | . |   | . |   |
       +---+---+---+---+---+---+---+---+
    4  |   | . |   | . |   | . |   | . |
       +---+---+---+---+---+---+---+---+
    3  | . |-N-| . |   |-R-|   | . |   |
       +---+---+---+---+---+---+---+---+
    2  |-K-| . |   |-P-|   | . |   | . |
       +---+---+---+---+---+---+---+---+
    1  | . |   | . |   | . |   | . |   |
       +---+---+---+---+---+---+---+---+
         a   b   c   d   e   f   g   h

White(1): go
              time limit 15:00 (+0.00) (15:00)
              depth   time  score   variation (1)
starting thread 1
                8     0.07  -4.27   Rh3 Be5 Rh4 Kb5 d4 Qd8 Rg4
                8->   0.07  -4.27   Rh3 Be5 Rh4 Kb5 d4 Qd8 Rg4 (s=2)
                9     0.10  -4.47   Rh3 Be5 Rh4 Qc7 Kb1 Bf6 Rg4 Qb6 Kc2
                9->   0.16  -4.47   Rh3 Be5 Rh4 Qc7 Kb1 Bf6 Rg4 Qb6 Kc2
                                    (s=2)
               10     0.25  -4.46   Rh3 Bf6 Rh5 Qb4 Ra5+ Kb6 Ra8 Qf4 Ra5
                                    Qc4 Ka3
               10->   0.27  -4.46   Rh3 Bf6 Rh5 Qb4 Ra5+ Kb6 Ra8 Qf4 Ra5
                                    Qc4 Ka3
               11     0.37  -4.46   Rh3 Bf6 Rh5 Qb4 Ra5+ Kb6 Ra8 Qf4 Ra5
                                    Qc4 Ka3 Be7+ Kb2 Bf6+ Ka3
               11->   0.43  -4.46   Rh3 Bf6 Rh5 Qb4 Ra5+ Kb6 Ra8 Qf4 Ra5
                                    Qc4 Ka3 Be7+ Kb2 Bf6+ Ka3
               12     0.68  -4.48   Rh3 Bf6 Rh5 Qb4 Ra5+ Kb7 Nc5+ Kb6 Nb3
                                    Bg7 Ra8 Qf4 Ka3 Qd6+ Ka2
               12->   0.82  -4.48   Rh3 Bf6 Rh5 Qb4 Ra5+ Kb7 Nc5+ Kb6 Nb3
                                    Bg7 Ra8 Qf4 Ka3 Qd6+ Ka2
               13     2.78     -1   Rh3
               13     3.38  -4.95   Rh3 Bg7 Re3 Qf6 Rc3 Kb5 Nc1 Qe6+ Rb3+
                                    Ka4 Kb1 Bd4 d3 Qd5 Rb8 <HT>
               13     4.09  -4.78   Re8 Bg7 Re2 Kb5 Re7 Bf6 Re3 Qa6+ Kb1
                                    Kb4 Kc1 Qf1+ Kc2 Qc4+ Kd1 <HT>
               13->   6.30  -4.78   Re8 Bg7 Re2 Kb5 Re7 Bf6 Re3 Qa6+ Kb1
                                    Kb4 Kc1 Qf1+ Kc2 Qc4+ Kd1 <HT> (s=3)
               14     7.67  -4.94   Re8 Bg7 Re2 Kb5 Re7 Bh8 Kb1 Kc4 Re3
                                    Bd4 Rf3 Qb7 Rh3 Qb4 (s=2)
               14    13.78  -4.85   Kb1 Bd4 Rg3 Qe6 Kc2 Qf5+ Kd1 Be5 Re3
                                    Kb5 Ke1 Qf4 Kd1 Qg4+ Kc2 Qc4+ Kd1
               14->  14.19  -4.85   Kb1 Bd4 Rg3 Qe6 Kc2 Qf5+ Kd1 Be5 Re3
                                    Kb5 Ke1 Qf4 Kd1 Qg4+ Kc2 Qc4+ Kd1
               15    33.49  -4.86   Kb1 Qg6+ Kc1 Kb5 Rh3 Be5 Re3 Qf5 Kd1
                                    Qf1+ Kc2 Qc4+ Kb1 Qd5 Kc2 Kb4 Kb1 Kc4
               15->  34.51  -4.86   Kb1 Qg6+ Kc1 Kb5 Rh3 Be5 Re3 Qf5 Kd1
                                    Qf1+ Kc2 Qc4+ Kb1 Qd5 Kc2 Kb4 Kb1 Kc4
               16    52.44  -4.91   Kb1 Qg6+ Kc1 Kb5 Kd1 Bb2 Re7 Qb1+ Ke2
                                    Qh1 Re3 Qh5+ Rf3 Kb4 Kf2 Be5 Re3 Qh1
                                    Ke2 Qh2+ Kf1
               16->  53.98  -4.91   Kb1 Qg6+ Kc1 Kb5 Kd1 Bb2 Re7 Qb1+ Ke2
                                    Qh1 Re3 Qh5+ Rf3 Kb4 Kf2 Be5 Re3 Qh1
                                    Ke2 Qh2+ Kf1
               17     1:09     -1   Kb1
               17     1:40  -5.12   Kb1 Qg6+ Kc1 Kb5 Kd1 Qb1+ Ke2 Qg1 Rd3
                                    Qg4+ Kf2 Bf6 Rf3 Kb4 Rd3 Bh4+ <HT>
               17->   1:42  -5.12   Kb1 Qg6+ Kc1 Kb5 Kd1 Qb1+ Ke2 Qg1 Rd3
                                    Qg4+ Kf2 Bf6 Rf3 Kb4 Rd3 Bh4+ <HT>
               18     1:48     -1   Kb1
               18     4:08  -6.51   Kb1 Qg6+ Kc1 Kb5 Kd1 Qb1+ Ke2 Kb4 Rg3
                                    Bf6 Re3 Qg1 Kf3 Bg5 Nd4 Qd1+ Re2 Bxd2
                                    Ke4 Qh1+ Ke5 Qh5+ Ke6
               18     5:02     +1   Nd4!!
               18     5:02     +3   Nd4!!
               18     5:02     +M   Nd4!!
               18     5:02   0.01   Nd4 Bxd4 Ra3+ Qa5 Rxa5+ Kxa5 <EGTB>
               18->   5:02   0.01   Nd4 Bxd4 Ra3+ Qa5 Rxa5+ Kxa5 <EGTB>
                                    (s=15)
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Spock

Re: Test Position

Post by Spock »

Nice find by Crafty

I was wondering how Rybka would go, but it has no difficulty

12.01 0:01 -4.18 1.Kb1 Qc7 2.Rd3 Qc4 3.Re3 Kb6 4.Nc1 Bf6 5.Nb3 (185.536) 169 TB:8
13.01 0:01 -4.17 1.Kb1 Qc7 2.Rd3 Qc4 3.Re3 Kb6 4.Nc1 Bf6 5.Nb3 Bg7 (234.376) 165 TB:15
14.01 0:01 -4.20 1.Kb1 Qc7 2.Rd3 Kb5 3.Re3 Be5 (311.253) 159 TB:32
15.01 0:02 -4.20 1.Kb1 Qc7 2.Rd3 Kb5 3.Re3 Be5 (407.934) 154 TB:57
16.01 0:05 -4.40 1.Kb1 Qc7 2.Rd3 Kb5 3.Re3 Bf6 (786.877) 155 TB:130
17.01 0:06 -4.40 1.Kb1 Qc7 2.Rd3 Kb5 3.Re3 Bf6 4.Rd3 Qh7 5.Nc1 Kc4 6.Kc2 Be5 7.Kb1 Qg6 8.Kc2 Qe4 9.Kd1 Qg4+ 10.Kc2 (951.817) 151 TB:188
18.01 0:09 -4.40 1.Kb1 Qc7 2.Rd3 Kb5 3.Re3 Bf6 4.Nc1 Qh7+ 5.Rd3 Kc4 6.Kc2 Be5 7.Kb1 Qg6 8.Kc2 Qe4 9.Kd1 Qg4+ 10.Kc2 Qf5 (1.269.029) 141 TB:346
19.09 1:36 -0.40++ 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (17.197.717) 181 TB:5.803
19.01 1:36 -0.40 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (17.197.723) 181 TB:5.803
20.01 1:36 -0.40 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (17.197.736) 181 TB:5.803
21.01 1:36 -0.40 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (17.197.749) 181 TB:5.803
22.01 1:36 -0.40 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (17.197.762) 181 TB:5.803
23.01 1:36 -0.40 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (17.197.775) 181 TB:5.803
24.01 1:41 -0.40 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (18.156.035) 182 TB:6.798
25.01 1:53 -0.35 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (20.396.224) 184 TB:9.708
26.01 2:10 -0.32 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ (24.064.312) 189 TB:14.313
27.01 2:30 -0.32 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Kc6 4.Rc3+ Kb6 5.Rb3+ Kc5 6.Rc3+ Kb4 7.Rb3+ Kc4 8.Rc3+ Qxc3 9.dxc3 Be5 10.Kb2 Bf4 11.Kc2 Be3 12.Kd1 Kd3 13.c4 Bc5 14.Kc1 (28.889.463) 197 TB:19.996
28.01 2:52 -0.32 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Ka4 4.Ra3+ Kb4 5.Rb3+ Kc5 6.Rc3+ Kb4 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc5 10.Rc3+ Kb4 11.Rb3+ Kc5 12.Rc3+ Kb4 13.Rb3+ Kc5 14.Rc3+ (34.922.455) 206 TB:24.528
29.01 3:27 -0.32 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Ka4 4.Ra3+ Kb4 5.Rb3+ Kc5 6.Rc3+ (42.917.285) 212 TB:31.787
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Dirt
Posts: 2851
Joined: Wed Mar 08, 2006 10:01 pm
Location: Irvine, CA, USA

Re: Test Position

Post by Dirt »

Spock wrote:Nice find by Crafty

I was wondering how Rybka would go, but it has no difficulty
Rybka 3, I assume.

On a slow single processor, Rybka 2.2n2 is not at all fast. I gave up after an hour or so. Toga 1.4beta5c was over 28 minutes and Stockfish 2.2 was 75.5 minutes.
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Spock

Re: Test Position

Post by Spock »

Dirt wrote:
Spock wrote:Nice find by Crafty

I was wondering how Rybka would go, but it has no difficulty
Rybka 3, I assume.

On a slow single processor, Rybka 2.2n2 is not at all fast. I gave up after an hour or so. Toga 1.4beta5c was over 28 minutes and Stockfish 2.2 was 75.5 minutes.
Yes, Rybka 3 x64 on quad 4 x 2.4
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Spock

Re: Test Position

Post by Spock »

Dirt wrote:
Spock wrote:Nice find by Crafty

I was wondering how Rybka would go, but it has no difficulty
Rybka 3, I assume.

On a slow single processor, Rybka 2.2n2 is not at all fast. I gave up after an hour or so. Toga 1.4beta5c was over 28 minutes and Stockfish 2.2 was 75.5 minutes.
Rotor 0.4, one of my favourite engines :) finds it after 24 mins on one thread on the Intel

11/22 0:01 -3.81 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Be5 4.Re3 Qg6+ 5.Kc1 Qc6+ 6.Kd1 Qd5 7.Ke2 (2.556.430) 1888
12/25 0:02 -3.79 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Be5 4.Re3 Qd6 5.Kc1 Qd5 6.Kd1 Kc6 (5.178.827) 1902
13/27 0:04 -3.78 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Be5 4.Kc2 Qb4 5.Re3 Qc4+ 6.Kd1 Qf1+ 7.Re1 Qb5 8.Re3 (9.057.794) 1920
14/29 0:06 -3.80 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Be5 4.Kc2 Qc6+ 5.Kd1 Kc7 6.Re3 Qd5 7.Kc2 Qc4+ 8.Kd1 Qg4+ 9.Re2 (12.673.652) 1939
15/31 0:10 -3.80 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Be5 4.Kc2 Qc6+ 5.Kd1 Kc7 6.Re3 Qd5 7.Rh3 Qe4 8.Re3 Qg4+ 9.Re2 (20.304.347) 1943
16/33 0:17 -3.99 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qe4 4.Kc2 Kb5 5.Nc1 Kc4 6.Kd1 Qg4+ 7.Kc2 Qf5 8.Kd1 Kd5 9.Rg3 (35.162.354) 1959
17/36 0:52 -3.93 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qe4 4.Kc2 Kb5 5.Nc1 Kc4 6.Kd1 Qg4+ 7.Kc2 Qf5 8.Kd1 Qh5+ 9.Kc2 Qe5 10.Nb3 (103.655.568) 1961
18/37 1:01 -3.99 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qe4 4.Kc2 Kb5 5.Nc1 Kc4 6.Kd1 Qg4+ 7.Kc2 Qf5 8.Kd1 Kd5 9.Rg3 Qf1+ 10.Kc2 Qc4+ 11.Kd1 (122.069.920) 1969
19/39 1:20 -3.99 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qh7 4.Kc2 Kb5 5.Nc1 Kc4 6.Kb1 Qh6 7.Kc2 Qg6 8.Kd1 Qg4+ 9.Kc2 Qe4 10.Kd1 Kd5 (159.899.432) 1978
20/41 1:52 -4.00 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qh7 4.Kc2 Kb5 5.Nc1 Kc4 6.Kb1 Be5 7.Kc2 Bf6 8.Kb1 Bd4 9.Kc2 Qg6 10.Kd1 Qg4+ 11.Kc2 (223.091.139) 1985
21/45 5:19 -3.97 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qh7 4.Kc2 Kb5 5.Nc1 Kc4 6.Kb1 Be5 7.Kc2 Bf6 8.Kb1 Bd4 9.Kc2 Qg6 10.Kd1 Qg4+ 11.Kc2 Kd5 (629.800.311) 1972
22/45 6:52 -4.04 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qh7 4.Kc2 Kb5 5.Nc1 Kc4 6.Kb1 Be5 7.Kc2 Bf6 8.Kb1 Bd4 9.Kc2 Qg6 10.Kb1 Kd5 11.Kc2 Qe4 (812.842.288) 1972
23/47 9:44 -4.04 1.Kb1 Bd4 2.Rg3 Qb7 3.Rd3 Qh7 4.Kc2 Kb5 5.Nc1 Kc4 6.Kb1 Be5 7.Kc2 Bf6 8.Kb1 Bd4 9.Kc2 Qf5 10.Kb1 Kd5 11.Kc2 Qe4 12.Nb3 (1.147.228.175) 1962
24/49 17:07 -4.06 1.Kb1 Bd4 2.Rg3 Qd6 3.Rd3 Qg6 4.Kc2 Kb5 5.Nc1 Kc4 6.Kb1 Bh8 7.Kc2 Qe4 8.Kb1 Kc5 9.Nb3+ Kc6 10.Nc1 Be5 11.Kc2 Qc4+ 12.Kb1 Bd4 13.Rf3 Kd5 (2.010.410.421) 1956
24/49 24:02 -0.13 1.Nd4 Qxd4 2.Ra3+ Kb5 3.Rb3+ Ka4 4.Ra3+ Kb4 5.Rb3+ Ka5 6.Ra3+ Kb6 7.Rb3+ Kc7 8.Rc3+ Kb7 9.Rb3+ Kc6 10.Rc3+ Kd5 11.Rd3 Be5 12.Rxd4+ Kxd4 13.d3 Bf6 14.Kb1 (2.815.120.922) 1952


Of course in an actual tournament game, it would never get the luxury of 24 mins
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Spock

Re: Test Position

Post by Spock »

My all time favourite Zappa Mexico II x64 is even quicker than Rybka

9/23 0:00 -3.68 1.Re8 Bf6 2.Re3 Qd6 3.Kb1 Kb5 4.Kc2 Qc6+ (238.805) 1020 TB:12
9/23 0:00 -3.66 1.Rh3 Qf6 2.Ka3 Qd6+ 3.Ka2 Bf6 4.d4 Qe6 (367.613) 1178 TB:23
9/23 0:00 -3.66 1.Rh3 Qf6 2.Ka3 Qd6+ 3.Ka2 Bf6 4.d4 (416.680) 1274 TB:46
10/26 0:00 -3.66 1.Rh3 Qf6 2.Ka3 Qd6+ 3.Ka2 Bf6 4.d4 Kb5 (608.591) 1114 TB:101
10/26 0:00 -3.66 1.Rh3 Qf6 2.Ka3 Qd6+ 3.Ka2 Bf6 4.d4 Kb5 (720.201) 1184 TB:121
11/29 0:01 -3.76 1.Rh3 Bg7 2.Re3 Qf6 3.Rc3 Kb5 4.d4 Kb4 5.Rc7 (1.725.765) 1651 TB:246
11/30 0:01 -3.76 1.Rh3 Bg7 2.Re3 Qf6 3.Rc3 Kb5 4.d4 Kb4 5.Rc7 (2.577.770) 1836 TB:390
12/30 0:01 -3.95 1.Rh3 Bg7 2.Re3 Qf6 3.Rc3 Kb5 4.Nc1 Qf2 5.Rd3 Qf5 (3.697.178) 2008 TB:578
12/33 0:02 -3.80 1.Kb1 Qg6+ 2.Kc1 Kb5 3.Kd1 Qg4+ 4.Ke1 Bf6 5.Kf2 Bh4+ 6.Kf1 Qc4+ (5.686.640) 2182 TB:809
12/33 0:02 -3.80 1.Kb1 Qg6+ 2.Kc1 Kb5 3.Kd1 Qg4+ 4.Ke1 Bf6 5.Kf2 Bh4+ 6.Kf1 Qc4+ (6.244.441) 2199 TB:957
13/33 0:03 -3.82 1.Kb1 Qg6+ 2.Kc1 Kb5 3.Kd1 Bf6 4.Ke1 Qg1+ 5.Ke2 Qg2+ 6.Kd3 Qd5+ 7.Ke2 Kc4 8.d3+ Kxb3 (8.400.328) 2301 TB:1.222
13/33 0:04 -3.82 1.Kb1 Qg6+ 2.Kc1 Kb5 3.Kd1 Bf6 4.Ke1 Qg1+ 5.Ke2 Qg2+ 6.Kd3 Qd5+ 7.Ke2 Kc4 8.d3+ Kxb3 (9.462.541) 2324 TB:1.552
14/40 0:05 -3.87 1.Kb1 Qg6+ 2.Kc1 Kb5 3.Kd1 Qg4+ 4.Kc2 Bf6 5.Nc1 Qc8+ 6.Kd1 Qf5 7.Rb3+ Kc4 8.Re3 (12.839.777) 2399 TB:1.939
14/40 0:06 -3.87 1.Kb1 Qg6+ 2.Kc1 Kb5 3.Kd1 Qg4+ 4.Kc2 Bf6 5.Nc1 Qc8+ 6.Kd1 Qf5 7.Rb3+ Kc4 8.Re3 (15.697.949) 2448 TB:2.701
15/40 0:10 -4.22 1.Kb1 Bd4 2.Rg3 Qd6 3.Rd3 Qg6 4.Nc1 Kb5 5.Kc2 Kc4 6.Kb1 Qe4 7.Nb3 Qxd3+ (26.229.328) 2582 TB:4.464
15/43 0:25 -4.22 1.Kb1 Bd4 2.Rg3 Qd6 3.Rd3 Qg6 4.Nc1 Kb5 5.Kc2 Kc4 6.Kd1 Bb2 7.Rc3+ Bxc3 8.dxc3 Kxc3 (70.506.246) 2724 TB:14.054
16/43 0:28 -4.27 1.Kb1 Bd4 2.Rg3 Qd6 3.Rd3 Qg6 4.Kc2 Kb5 (77.300.414) 2746 TB:16.023
16/43 0:37 -4.26 1.Rh3 Bg7 2.Kb1 Qb5 3.Rf3 Be5 4.Re3 Bd4 5.Rf3 Bh8 6.Re3 Bd4 (102.768.132) 2776 TB:23.483
16/43 0:42 -4.26 1.Rh3 Bg7 2.Kb1 Qb5 3.Rf3 Be5 4.Re3 Bd4 5.Rf3 Bh8 6.Re3 Bd4 (117.099.115) 2774 TB:27.758
17/45 0:53 -4.27 1.Rh3 Bg7 2.Kb1 Qf6 3.Kc2 Qf5+ 4.Rd3 Kb5 5.Nc1 Kc4 6.Kb1 Qg6 7.Ka2 Bd4 8.Kb1 Be5 9.Ka2 Qb6 10.Rb3 Qa5+ (151.611.552) 2809 TB:39.319
17/45 1:08 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (198.739.134) 2895 TB:86.288
17/45 1:08 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (198.918.245) 2894 TB:86.469
18/45 1:11 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (209.910.496) 2945 TB:92.764
18/45 1:12 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (214.370.696) 2943 TB:94.671
19/45 1:21 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (244.356.291) 3011 TB:114.417
19/45 1:21 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (245.136.063) 3012 TB:115.481
20/45 1:36 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (302.326.485) 3117 TB:145.220
20/45 1:37 0.00 1.Nd4 Qc5 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb8 5.Rb3+ Ka8 6.Ra3+ Kb8 (303.327.157) 3118 TB:146.657
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Spock

Re: Test Position

Post by Spock »

Last but by no means least, Quad Hiarcs 12.1 finds it almost instantly !! (10 seconds)

10/27 0:00 -5.89 1.Rh3 (1.058.705) 1935 TB:162
10/27 0:00 -5.22 1.Rh3 Bg7 2.Re3 Qf6 3.Rc3 Kb5 4.d4 Kb4 (1.178.278) 1935 TB:179
10/27 0:00 -5.21 1.Kb1 (1.368.142) 1935 TB:242
10/27 0:00 -5.14 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Qg6 4.Kc2 Be5 5.Nc1 Kc6 (1.435.465) 1935 TB:264
11/29 0:00 -5.12 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Qb4 4.Rf3 Be5 5.Kc1 Kc7 (1.593.756) 1907 TB:366
12/29 0:00 -5.17 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Qb4 4.Rf3 Qb5 5.Rg3 (1.859.116) 1907 TB:590
13/31 0:01 -5.23 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Qb5 4.Rg3 Kc6 5.Kc2 Qf5+ 6.Rd3 Be5 7.Nc1 Kb6 8.Kd1 Qg4+ 9.Kc2 (2.625.685) 1958 TB:1.054
14/34 0:02 -5.26 1.Kb1 Bd4 2.Rg3 Kb7 3.Rd3 Qb5 4.Rg3 Be5 5.Re3 Kc6 6.Kc2 Qc4+ 7.Kd1 Kd5 8.Na5 Qg4+ 9.Kc2 Qa4+ 10.Nb3 Qc4+ 11.Kd1 Qf1+ 12.Kc2 (4.320.419) 2027 TB:2.111
15/37 0:03 -5.51-- 1.Kb1 Bd4 (6.670.290) 2104 TB:4.092
15/38 0:04 -5.51 1.Kb1 Bd4 2.Rg3 Qd6 3.Rd3 Qg6 4.Kc2 (9.127.319) 2217 TB:5.148
15/38 0:10 -5.50 1.Nd4 (22.858.141) 2265 TB:14.022
15/38 0:10 -1.78++ 1.Nd4 (23.189.868) 2265 TB:14.261
15/38 0:10 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ (23.199.802) 2265 TB:14.574
16/38 0:10 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (23.230.239) 2265 TB:15.163
17/38 0:10 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (23.403.151) 2259 TB:16.263
18/38 0:10 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ (23.599.477) 2259 TB:17.643
19/38 0:10 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ (24.030.489) 2242 TB:19.773
20/38 0:11 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (24.646.808) 2234 TB:22.658
21/38 0:11 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (25.922.043) 2225 TB:27.356
22/38 0:12 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (27.847.993) 2221 TB:34.281
23/39 0:14 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (31.741.357) 2206 TB:46.194
24/41 0:18 -0.09 1.Nd4 Qxd4 2.Ra3+ Kb6 3.Rb3+ Ka7 4.Ra3+ Kb7 5.Rb3+ Kc6 6.Rc3+ Kb5 7.Rb3+ Kc5 8.Rc3+ Kb4 9.Rb3+ Kc4 10.Rc3+ Qxc3 11.dxc3 (39.897.156) 2209 TB:66.412
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jdart
Posts: 4406
Joined: Fri Mar 10, 2006 5:23 am
Location: http://www.arasanchess.org

Re: Test Position

Post by jdart »

What is the source for this (game? composition?)

--Jon
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