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Subject: Re: How much time do programs need to find the Bg7 of Junior against adams?

Author: Mogens Larsen

Date: 06:35:06 07/11/00

Go up one level in this thread


On July 11, 2000 at 08:25:27, blass uri wrote:

>[D]2k1r3/2pb4/1p5b/2p2pNp/p1P2N1P/1P3P2/P1KR2P1/8 b
>
>
>This is the relevant position
>
>Uri

I tried Amy succesfully. Ten seconds is rather fast for an "amateur" program.

-----------------------------------------
Hashtable sizes: 16384 k, 8192 k, 8192 k
Found 5-men endgame table bases.

White(1): Black(1): TC: 60 moves in 300 secs
TL: 4/16
GamePhase: Middlegame
It    Time   Score  principal Variation
 1     0.6     ---  1. .. axb3+
 1     0.6  -0.432  1. .. axb3+ 2. axb3
 1     0.6  -0.432  1. .. axb3+ 2. axb3
 2     0.6  -0.512  1. .. axb3+ 2. axb3 Bxg5
 2     0.6  -0.512  1. .. axb3+ 2. axb3 Bxg5
 3     0.6  -0.416  1. .. axb3+ 2. axb3 Bxg5 3. hxg5 h4
 3     0.6  -0.416  1. .. axb3+ 2. axb3 Bxg5 3. hxg5 h4
 4     0.7  -0.464  1. .. axb3+ 2. axb3 Rg8 3. Nxh5 Bxg5
 4     0.7  -0.464  1. .. axb3+ 2. axb3 Rg8 3. Nxh5 Bxg5
 5     0.7  -0.464  1. .. axb3+ 2. axb3 Rg8 3. Nxh5 Bxg5 4. hxg5 Rxg5
 5     0.8  -0.464  1. .. axb3+ 2. axb3 Rg8 3. Nxh5 Bxg5 4. hxg5 Rxg5
 6     0.8  -0.624  1. .. axb3+ 2. axb3 Rh8 3. Re2 Re8 4. Rxe8+ Bxe8 5. Kd3
                    Bg7
 6     1.0  -0.624  1. .. axb3+ 2. axb3 Rh8 3. Re2 Re8 4. Rxe8+ Bxe8 5. Kd3
                    Bg7
 7     1.1  -0.704  1. .. axb3+ 2. axb3 Rh8 3. Nd5 Rd8 4. Re2 Bxg5 5. hxg5 h4
 7     1.2     +++  1. .. Rh8
 7     1.3  -0.688  1. .. Rh8 2. Nd5 Rd8 3. Re2 Kb7 4. Kd3 Bg7
 7     1.4  -0.688  1. .. Rh8 2. Nd5 Rd8 3. Re2 Kb7 4. Kd3 Bg7
 8     1.8  -0.928  1. .. Rh8 2. Nd5 Bxg5 3. hxg5 Rd8 4. g6 f4 5. Nxf4
 8     1.8     +++  1. .. axb3+
 8     2.0  -0.720  1. .. axb3+ 2. axb3 Re1 3. Nxh5 Rh1 4. Nf6 Bc6 5. Kc3
                    Rxh4
 8     2.4     +++  1. .. Re1
 8     2.7  -0.624  1. .. Re1 2. Kd3 axb3 3. axb3 Kb7 4. Nxh5 Rh1 5. Nf6
 8     3.0  -0.624  1. .. Re1 2. Kd3 axb3 3. axb3 Kb7 4. Nxh5 Rh1 5. Nf6
 9     4.1  -0.544  1. .. Re1 2. Kd3 a3 3. g3 Bc6 4. Re2 Rd1+ 5. Ke3 Bxg5 6.
                    hxg5
 9     4.6  -0.544  1. .. Re1 2. Kd3 a3 3. g3 Bc6 4. Re2 Rd1+ 5. Ke3 Bxg5 6.
                    hxg5
10     7.3  -0.512  1. .. Re1 2. Kd3 a3 3. g3 Bc6 4. Rf2 Rd1+ 5. Ke3 Be8 6.
                    Rd2 Rxd2
10    10.0     +++  1. .. Bg7
10    10.3  -0.480  1. .. Bg7 2. Nxh5 Bd4 3. g3 Re3 4. Nf4 axb3+ 5. axb3 Rc3+
                    6. Kd1 Rxb3
10    10.6  -0.480  1. .. Bg7 2. Nxh5 Bd4 3. g3 Re3 4. Nf4 axb3+ 5. axb3 Rc3+
                    6. Kd1 Rxb3
11    19.7  -0.448  1. .. Bg7 2. Kd3 axb3 3. axb3 Bd4 4. Re2 Rxe2 5. Kxe2 Be8
                    6. Nfe6 Bc6 7. Kd3 Be5 8. Ne4
11    21.4  -0.448  1. .. Bg7 2. Kd3 axb3 3. axb3 Bd4 4. Re2 Rxe2 5. Kxe2 Be8
                    6. Nfe6 Bc6 7. Kd3 Be5 8. Ne4
12    49.0  -0.368  1. .. Bg7 2. Kd1 axb3 3. axb3 Bd4 4. Re2 Kb7 5. Nf7 Bf6
                    6. g3 Rf8
12    51.2  -0.368  1. .. Bg7 2. Kd1 axb3 3. axb3 Bd4 4. Re2 Kb7 5. Nf7 Bf6
                    6. g3 Rf8
13    1:49  -0.368  1. .. Bg7 2. g3 Bd4 3. Re2 axb3+ 4. axb3 Rxe2+ 5. Nxe2
                    Bf2 6. Nh3 Bd4 7. Kd3 Be5 8. Nhf4 Bc6
13    1:54  -0.368  1. .. Bg7 2. g3 Bd4 3. Re2 axb3+ 4. axb3 Rxe2+ 5. Nxe2
                    Bf2 6. Nh3 Bd4 7. Kd3 Be5 8. Nhf4 Bc6
Nodes = 34913050, QPerc: 74 %, time = 145.61 secs, 239.8 kN/s
Extensions: Check: 886723  DblChk: 2767  DiscChk: 24847  SingReply: 29751
            Recapture: 273915   Passed Pawn: 26686   Zugzwang: 2
Hashing: Trans: 551448/8785362 = 6 %   Pawn: 16891329/17027613 = 99 %
         Eval: 9097669/26125282 = 34 %
EGTB Hits/Probes = 0/0
Hashtable 1:  entries = 1048576, use = 993201
----------------------------------

Best wishes...
Mogens



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