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Subject: Re: Fruit 2 and endgame play

Author: Dann Corbit

Date: 10:48:55 01/12/05

Go up one level in this thread


On January 12, 2005 at 02:33:38, Jouni Uski wrote:

>In my (private) endgame testsuite Fruit scored better than some programs
>with tablebase support (e.g. Junior8 and Crafty). Quite stunning - it seems,
>that excellent search depth compensates TBs! And my suite has some 5/6 piece
>positions were TB access is definitely advantage.

Using:
ftp://cap.connx.com/pub/EPD/pawntest.epd
On AMD 2.2 GHz 64 bit with 256 meg hash and 3 minute time limit...

With no tablebase files, Fruit does exceedingly well in sparse endgames.
(Not all of these positions are sparse, but most are):

Analysis from u:\epd\pawntest.epd
Analyzing engine: Fruit_20
  1) .. Na5-c6          c7-c6
  2) .. Rb3-b5, d5xe4   d5xe4   * 1 Second
  3) a2-a4              a2-a4   * 0 Seconds
  4) Kg5-f5             Kg5-f5  * 1 Second
  5) Kf4-e5             Kf4-e5  * 0 Seconds
  6) Kb4-c5             Kb4-c5  * 0 Seconds
  7) Kf2-e3             Kf2-e3  * 0 Seconds
  8) .. Kc8-b8, Kc8-c7  Kc8-b8  * 0 Seconds
  9) Kg4-f5, Kg4-g5, Kg4-h5  Kg4-f5  * 0 Seconds
 10) Kb5-c5             Kb5-c5  * 0 Seconds
 11) g6-g7              g6-g7   * 0 Seconds
 12) Ka6-b7             Ka6-b7  * 0 Seconds
 13) Kf7-e6             Kf7-e6  * 0 Seconds
 14) b4-b5              b4-b5   * 0 Seconds
 15) Kc2-c3             Kc2-c3  * 0 Seconds
 16) .. Kc6-d5          Kc6-d5  * 1 Second
 17) Ke6-f5             Ke6-f5  * 1 Second
 18) Kh8-g7             Kh8-g7  * 0 Seconds
 19) Kg4-f4, h4-h5      h4-h5   * 0 Seconds
 20) Kf5-e5             Kf5-e5  * 0 Seconds
 21) d6-d7              d6-d7   * 0 Seconds
 22) Kd6-e6             Kd6-e6  * 0 Seconds
 23) Kc6-b7             Kc6-b7  * 0 Seconds
 24) g2-g3              g2-g3   * 0 Seconds
 25) Ka4-b3             Ka4-b3  * 0 Seconds
 26) Kc5-d5             Kc5-d5  * 0 Seconds
 27) f5-f6              f5-f6   * 0 Seconds
 28) Ke5-e6             Ke5-e6  * 0 Seconds
 29) a4-a5              a4-a5   * 0 Seconds
 30) Kd6-d5, Kd6-e6, Kd6-d5  Kd6-e6  * 0 Seconds
 31) Ke3-d2, Ke3-e2, Ke3-e2  Ke3-e2  * 0 Seconds
 32) Kd5-c5             Kd5-c5  * 0 Seconds
 33) Ka4-b3, c3-c4      c3-c4   * 8 Seconds
 34) .. Kf4-g4          Kf4-g4  * 0 Seconds
 35) Kd4-c5, b4-b5      Kd4-c5  * 0 Seconds
 36) b5-b6              b5-b6   * 0 Seconds
 37) Kf3-f4             Kf3-f4  * 0 Seconds
 38) Kg3-f4             Kg3-f4  * 0 Seconds
 39) Ke6-f7             Ke6-f7  * 0 Seconds
 40) g4-g5              g4-g5   * 0 Seconds
 41) b5-b6              b5-b6   * 0 Seconds
 42) Kg2-g1             Kg2-g1  * 0 Seconds
 43) Ke8-e7             Ke8-e7  * 0 Seconds
 44) Kf3-e2             Kf3-e2  * 0 Seconds
 45) .. b5-b4           b5-b4   * 0 Seconds
 46) Kg6-f6             Kg6-f6  * 0 Seconds
 47) f2-f4              f2-f4   * 0 Seconds
 48) .. f5-f4           f5-f4   * 0 Seconds
 49) Kg5-h6, f2-f3, f2-f4, Kg5-h6  f2-f3   * 0 Seconds
 50) f4-f5              f4-f5   * 0 Seconds
 51) g2-g3              g2-g3   * 0 Seconds
 52) h4-h5              f2-f4
 53) .. f5-f4           f5-f4   * 1 Second
 54) .. g7-g5           g7-g5   * 0 Seconds
 55) f4-f5              f4-f5   * 2 Seconds
 56) c4-c5              Kc6-b7
 57) f5-f6              f5-f6   * 6 Seconds
 58) a5-a6              a5-a6   * 0 Seconds
 59) .. Re6xe5          Re6xe5  * 0 Seconds
 60) Bd2-e3, b5-b6      b5-b6   * 0 Seconds
 61) f5-f6              f5-f6   * 0 Seconds
 62) Ke5-f4             Ke5-f4  * 2 Seconds
 63) Ka1-b2             Ka1-b2  * 0 Seconds
 64) Kg4-g5, d2-e3      Kg4-g5  * 0 Seconds
 65) a2-a4              a2-a4   * 1 Second
 66) a2-a3              a2-a3   * 64 Seconds
 67) Kh1-h2             Kh1-g1
 68) Kc5-b4             Kc5-b4  * 0 Seconds
 69) h2-h4              h2-h4   * 2 Seconds
 70) .. f5-f4           f5-f4   * 0 Seconds
 71) h2-h4              h2-h4   * 0 Seconds
 72) c3-c4              Kh5-g4
 73) d4xc5              d4xc5   * 176 Seconds
 74) h2-h3              h2-h3   * 23 Seconds
 75) .. Kg5-f6, h6-h5, h6-h5  Kg5-f6  * 0 Seconds
70 of 75 matching moves
1/12/2005 4:59:18 AM, Total time: 3:47:17 AM Rated time: 19:49 = 1189 Seconds




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