Author: Ron Murawski
Date: 19:45:41 09/17/02
Go up one level in this thread
On September 17, 2002 at 21:31:17, James Swafford wrote:
>
>I'm skeptical about my hash efficiency - it seems to me I'm not
>getting enough hits from my hash tables.
>
>I wonder if some of you would post some numbers for me to compare
>by running the following 3 positions:
>
>r4k2/q4npp/P2P4/2p1R3/2N5/6PP/Q5K1/8 w - - bm Re7; id "ECM.1028";
>7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - b6b7;
>r1bq1rk1/pp2bp1p/2p2np1/3p2B1/3P4/2NQ2N1/PPP2PPP/4RRK1 w - - bm Rxe7; id
>"ECM.1068";
>
>The first and last are from GCP's ECM-GCP suite and the second is
>from WAC.
>
>Anyway, here's what I'm getting (10 seconds per problem):
>
>Position 1: 3931063 nodes, 318411 interior nodes.
> fail highs: 10866 (3%); fl: 9929 (3%); ex: 671 (0%)
> hash mvs played: 10660
>
>Position 2: 4944963 nodes, 3102047 interior nodes.
> fh: 1531962 (49%); fl: 432594 (13%); ex: 2836 (0%)
> hash mvs played: 602039
>
>Position 3: 3847265 nodes, 222358 interior nodes.
> fh: 3443 (1%); fl: 2926 (1%); ex: 151 (0%)
> hash mvs played: 11931
>
>The ratios change very little if I run the positions at 30 seconds.
>
>Thanks to anyone that takes the time... (which is hopefully a
>positive number of people)...
>
>--
>James
Here are Horizon's results. There is a bug in counting distance to mate on the
2nd position.
Ron
[D] r4k2/q4npp/P2P4/2p1R3/2N5/6PP/Q5K1/8 w - - bm Re7; id "ECM.1028";
Current Position = 3.62
Number of Possible Moves = 38
5 313! 44 13887 Re7 h6
5 818 50 16107 Re7 Qxa6 Rxf7+ Kg8 Qxa6 Rxa6
6 713? 61 23405 Re7 Qxa6 Rxf7+ Kxf7 Ne5+ Kf6 d7
6 148 72 42434 Re7 Qxa6 Qxa6 Rxa6 Re6 Rc6
6 281 72 46363 Qf2 Qxa6 Rxc5 Kg8 Qd4 Rd8
7 278 88 77942 Qf2 Qxa6 Rxc5 Qb7+ Kh2 Ra1 Qg2 Qd7
7 405! 88 81959 Re7 Qb7+ axb7 Rxa2+ Kf3 Ng5+ Kg4 Rb2 Kxg5
7 817 110 134996 Re7 Qxa6 Rxf7+ Kg8 Qxa6 Rxa6 Rf5 Ra2+ Kf3
8 825 132 214597 Re7 Qxa6 Rxf7+ Kg8 Qxa6 Rxa6 Rf5 Ra2+ Kf3 Rh2
9 856! 171 345858 Re7 Qxa6 Rxf7+ Kg8 Qxa6 Rxa6 Rf5 Ra2+ Kf3 Kh8
9 952 187 401682 Re7 Qxa6 Rxf7+ Kg8 Qxa6 Rxa6 Rc7 Ra8 Rxc5 Rd8
Search Time : 10.00 Seconds
Total Nodes Searched : 3330745 (71.4% Qui)
Total Nodes Evaluated : 2376806
Cuts : Delta 295161 : SEE 13124 : Mate 0
: Razor 534522 : Eval 1726343
Extensions : Check 313664 : OneRep 12009 : CMThreat 2047
: Pawn 78337 : Recap 7266 : RevCheck 18326
Hash Stores (Size) : 594009 (1398091)
Hash Probes (Hits) : 2552708 (896766)
EGTB Probes (Hits) : 0 (0)
Move Ordering : 95.4%
Best Move = Re7
[D] 7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - b6b7;
Current Position = -1.29
Number of Possible Moves = 14
7 Mate35 5 3320 Rb7 Rb5 Rxb5 Kg8 Rb8+ Kf7 Rb7+ Ke6 Rxa7
7 Mate29 5 4396 Rb7 Rb5 Rxb5 Kg8 Rb8+ Kf7 Rb7+ Ke6 Rxa7
Search Time : 0.05 Seconds
Total Nodes Searched : 6706 (58.1% Qui)
Total Nodes Evaluated : 3894
Cuts : Delta 278 : SEE 1 : Mate 0
: Razor 306 : Eval 2657
Extensions : Check 307 : OneRep 86 : CMThreat 60
: Pawn 0 : Recap 13 : RevCheck 0
Hash Stores (Size) : 1163 (1398091)
Hash Probes (Hits) : 6605 (3892)
EGTB Probes (Hits) : 297 (83)
Move Ordering : 92.1%
Best Move = Rb7
[D] r1bq1rk1/pp2bp1p/2p2np1/3p2B1/3P4/2NQ2N1/PPP2PPP/4RRK1 w - - bm Rxe7; id
"ECM.1068";
Current Position = 0.78
Number of Possible Moves = 49
4 88 66 11731 Bh6 Re8 Re5 Bg4
4 90 66 12718 Re5 Be6 Bh6 Re8
5 119! 66 15207 Re5 Be6 Bh6 b6
5 118? 71 18330 Re5 Re8 Qe4
5 121 71 20998 Bh6 Re8 Re3 Bd6 Rfe1 Rxe3 Rxe3
5 145 77 31297 Re3 Be6 Bh6 Re8 Rfe1
6 116? 82 40496 Re3 Be6 Rfe1 Qd7 Rf3 Ne8
6 102 104 94389 Re3 Be6 Bh6 Re8 Rfe1 Qd7
7 73? 121 135865 Re3 Be6 Bh6 Re8 Nce2 Ng4 Rf3
7 85 137 177034 Bh6 Re8 Re2 Bd6 Rxe8+ Qxe8 Qf3 Qd8
7 108 187 335056 Re2 Re8 Rfe1 Be6 Bh6 Qd7 Re5
8 81 247 510059 Re2 Re8 Rfe1 Be6 Bh6 Ng4 Qd2 Qd7
8 87 439 1055490 f4 Bd7 f5 Rc8 Re3 Re8 Rfe1 c5 Bxf6 Bxf6 Nxd5
Rxe3 Rxe3 Bxd4
Search Time : 10.00 Seconds
Total Nodes Searched : 2605609 (84.1% Qui)
Total Nodes Evaluated : 2190980
Cuts : Delta 546643 : SEE 450081 : Mate 0
: Razor 269889 : Eval 1103007
Extensions : Check 30316 : OneRep 885 : CMThreat 85
: Pawn 987 : Recap 12780 : RevCheck 646
Hash Stores (Size) : 501357 (1398091)
Hash Probes (Hits) : 1992541 (430956)
EGTB Probes (Hits) : 0 (0)
Move Ordering : 89.3%
Best Move = f4
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