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Subject: about bug in fruit.2.2(I send bug report to fabien few minutes ago)

Author: Uri Blass

Date: 16:13:02 12/01/05


some analysis by fruit2.2 with 512 mbytes hash
In the mail I sent to fabien I sent analysis of fruit2.2.1 but the result is
similiar

New game,
[D]1k6/3r4/p1qPrpp1/1p1RP2p/3R2P1/P1p4Q/1P5P/1K6 w - - 0 1

Analysis by Fruit 2.2:

1.Qxc3 Qxc3 2.bxc3 fxe5
  ²  (0.30)   Depth: 1/14   00:00:00
1.Qxc3 Qxc3 2.bxc3 fxe5
  ²  (0.30)   Depth: 2/16   00:00:00
1.Qxc3 Qxc3 2.bxc3 fxe5
  ²  (0.30)   Depth: 3/16   00:00:00
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd2 hxg4
  =  (-0.14)   Depth: 4/16   00:00:00
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd2 hxg4
  =  (-0.14)   Depth: 5/16   00:00:00
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2
  =  (-0.17)   Depth: 6/16   00:00:00  21kN
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2 Rf6
  ³  (-0.26)   Depth: 7/19   00:00:00  44kN
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2 e4 5.Kb3
  ³  (-0.39)   Depth: 8/19   00:00:00  88kN
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2 Rf6 5.Rxe5 Rdxd6
  ³  (-0.38)   Depth: 9/20   00:00:00  202kN
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2 Rf6 5.Rxe5 Rdxd6 6.Re8+ Kb7 7.Re7+ Kb6
  ³  (-0.45)   Depth: 10/23   00:00:01  470kN
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd1 hxg4 4.Kc2 Rf6 5.Kb3 e4 6.a4 bxa4+ 7.Kxa4 Rf2
8.Rb1+ Kc8
  ³  (-0.42)   Depth: 11/29   00:00:01  1004kN
1.Qxc3 Qxc3 2.bxc3 fxe5 3.Rd2 hxg4 4.a4 bxa4 5.c4 Kb7 6.c5 Kc6 7.Kb2 Rb7+ 8.Kc3
  ³  (-0.68)   Depth: 12/45   00:00:03  2709kN
1.bxc3 Rxe5 2.gxh5 Rxd5 3.Rxd5 Qxd5 4.Qxd7 Qb3+ 5.Kc1 Qxc3+ 6.Kd1 Qd3+ 7.Ke1
Qe3+ 8.Kf1 Qf4+ 9.Kg2 Qg5+ 10.Kf2 Qc5+ 11.Kg2 Qxh5
  ³  (-0.52)   Depth: 12/45   00:00:05  4229kN
1.bxc3 Rxe5 2.gxh5 Rxd5 3.Rxd5 Qxd5 4.Qxd7 Qb3+ 5.Kc1 Qxc3+ 6.Kd1 Qd3+ 7.Ke1
Qe3+ 8.Kf1 Qf4+ 9.Ke1 Qh4+ 10.Kf1 Qc4+ 11.Kg2 Qe2+ 12.Kg3
  ³  (-0.51)   Depth: 13/45   00:00:11  8969kN
1.bxc3 Rxe5 2.gxh5 Rxd5 3.Rxd5 Qxd5 4.Qxd7 Qb3+ 5.Kc1 Qxc3+ 6.Kd1 Qd3+ 7.Ke1
Qe3+ 8.Kf1 Qf4+ 9.Ke1 Qh4+ 10.Kf1 Qc4+ 11.Kg2 Qe2+ 12.Kg3 Qe5+ 13.Kg2 Qxh5
  ³  (-0.52)   Depth: 14/45   00:00:21  16390kN
1.gxh5 c2+ 2.Kc1 Rxe5 3.Rxe5 fxe5 4.Rd3 e4 5.Rd2 gxh5 6.Qxh5 Kb7 7.Qe8 e3 8.Qxe3
Rf7 9.Rxc2 Rf1+ 10.Kd2 Qxd6+ 11.Ke2 Qxh2+ 12.Kxf1 Qxc2
  =  (-0.06)   Depth: 14/46   00:00:31  24105kN
1.gxh5 c2+ 2.Kc1 Rxe5 3.Rxe5 fxe5 4.Rd3 gxh5 5.Qxh5 Rxd6 6.Qxe5 Qh1+ 7.Kxc2 Qg2+
8.Kc3 Qc6+ 9.Kd2 Qg2+ 10.Qe2 Qg5+ 11.Kc2 Rc6+ 12.Rc3 Qg6+ 13.Kc1 Qg1+ 14.Kc2
  =  (0.07)   Depth: 15/51   00:00:54  42522kN
1.gxh5 c2+ 2.Kc1 Rxe5 3.Rxe5 fxe5 4.Rd3 gxh5 5.Qxh5 Rxd6 6.Qxe5 Qh1+ 7.Kxc2 Qg2+
8.Kc3 Qc6+ 9.Kd2 Qg2+ 10.Qe2 Qg5+ 11.Kc2 Rc6+ 12.Rc3 Qg6+ 13.Qd3 Qg2+ 14.Kb1
Qg1+ 15.Ka2 Rxc3 16.Qxc3 Qxh2
  =  (0.05)   Depth: 16/51   00:01:46  85787kN
1.gxh5 gxh5 2.bxc3 Rxe5 3.Qd3 Rxd5 4.Rxd5 f5 5.Kb2 f4 6.h4 Kb7 7.Kc2 f3 8.Qxf3
Rxd6 9.Qf7+ Kb6 10.Rxh5
  =  (0.05)   Depth: 17/51   00:03:21  165911kN

(,  02.12.2005)

Copy the following game that lead to the position and end with pawn move

1.e4 d5 2.exd5 Nf6 3.d4 Bg4 4.f3 Bf5 5.Bb5+ Nbd7 6.Nc3 a6 7.Bd3 Bxd3 8.Qxd3 Nb6
9.Bd2 Nbxd5 10.Nxd5 Qxd5 11.c4 Qd7 12.0-0-0 0-0-0 13.Bc3 e6 14.Ne2 Qa4 15.Kb1
Bb4 16.Rd2 Rd7 17.Rhd1 Rhd8 18.Qc2 Qa5 19.g3 g6 20.a3 Bxc3 21.Nxc3 c5 22.d5 exd5
23.cxd5 Kb8 24.d6 b5 25.Ne4 Nxe4 26.fxe4 Qb6 27.e5 c4 28.Qe4 Re8 29.Rd5 Re6
30.R1d4 Qc6 31.Qg4 h5 32.Qh3 c3 33.g4 f6 *

Let fruit2.2 analyze

You get the following analysis and inspite of the fact that the position is
exactly the same(no repetition of previous game position is possible) the
analysis is not the same and there is a big difference.

New game - Fritz 8, 5'/40
[D]1k6/3r4/p1qPrpp1/1p1RP2p/3R2P1/P1p4Q/1P5P/1K6 w - - 0 1

Analysis by Fruit 2.2:

34.Qxc3 Qxc3 35.bxc3 fxe5
  ²  (0.30)   Depth: 1/14   00:00:00
34.Qxc3 Qxc3 35.bxc3 fxe5
  ²  (0.30)   Depth: 2/16   00:00:00
34.Qxc3 Qxc3 35.bxc3 fxe5
  ²  (0.30)   Depth: 3/16   00:00:00
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd2 hxg4
  =  (-0.14)   Depth: 4/16   00:00:00
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd2 hxg4
  =  (-0.14)   Depth: 5/16   00:00:00
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2
  =  (-0.17)   Depth: 6/18   00:00:00  22kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2 Rf6
  ³  (-0.26)   Depth: 7/19   00:00:00  46kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2 e4 38.Kb3
  ³  (-0.39)   Depth: 8/19   00:00:00  88kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2 Rf6 38.Rxe5 Rdxd6
  ³  (-0.38)   Depth: 9/19   00:00:00  196kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2 Rf6 38.Rxe5 Rdxd6 39.Re8+ Kb7
40.Re7+ Kb6
  ³  (-0.45)   Depth: 10/23   00:00:01  434kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.Kc2 Rf6 38.Kb3 e4 39.a4 bxa4+ 40.Kxa4
Rf2 41.Rb1+ Kc8
  ³  (-0.42)   Depth: 11/29   00:00:01  984kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.a4 bxa4 38.Kb2 e4 39.Ka3 e3 40.Kxa4
  ³  (-0.63)   Depth: 12/43   00:00:03  2671kN
34.Qxc3 Qxc3 35.bxc3 fxe5 36.Rd1 hxg4 37.a4 bxa4 38.c4 Kb7 39.c5 e4 40.Kc2 e3
41.Rb1+ Kc6
  ³  (-0.70)   Depth: 13/43   00:00:10  8081kN
34.bxc3 Rxe5 35.gxh5 Rxd5 36.Rxd5 Qxd5 37.Qxd7 Qb3+ 38.Kc1 Qxc3+ 39.Kd1 Qd3+
40.Ke1 Qe3+ 41.Kf1 Qf3+ 42.Kg1 Qd1+ 43.Kf2 Qd2+ 44.Kf3
  ³  (-0.49)   Depth: 13/46   00:00:14  11573kN
34.bxc3 Rxe5 35.gxh5 Rxd5 36.Rxd5 Qxd5 37.Qxd7 Qb3+ 38.Kc1 Qxc3+ 39.Kd1 Qd3+
40.Ke1 Qe3+ 41.Kf1 Qc1+ 42.Ke2 Qc4+ 43.Kd2 Qa2+ 44.Kd1 Qd5+ 45.Kc2 Qxh5
  ³  (-0.51)   Depth: 14/46   00:00:23  19013kN
34.bxc3 Rxe5 35.gxh5 Rxd5 36.Rxd5 Qxd5 37.Qxd7 Qb3+ 38.Kc1 Qxc3+ 39.Kd1 Qd3+
40.Ke1 Qe3+ 41.Kf1 Qc1+ 42.Ke2 Qc4+ 43.Ke1 Qh4+ 44.Kf1 Qf4+ 45.Kg2 Qd2+ 46.Kf3
  ³  (-0.49)   Depth: 15/47   00:00:49  39631kN
34.bxc3 Rxe5 35.gxh5 Rxd5 36.Rxd5 Qxd5 37.Qxd7 Qb3+ 38.Kc1 Qxc3+ 39.Kd1 Qd3+
40.Ke1 Qe3+ 41.Kf1 Qc1+ 42.Ke2 Qc4+ 43.Kd2 Qa2+ 44.Ke1 Qb1+ 45.Ke2 Qe4+ 46.Kd2
Qd4+ 47.Kc2 Qc5+ 48.Kd2 Qxh5
  ³  (-0.49)   Depth: 16/49   00:01:39  80743kN
34.gxh5 c2+ 35.Kc1 Rxe5 36.Rxe5 fxe5 37.Rd3 e4 38.Rd2 gxh5 39.Qxh5 Kb7 40.Qe2
Kb8 41.Qh5
  =  (0.00)   Depth: 16/69   00:02:09  105918kN
34.gxh5 Rxe5 35.Qxc3 Qxc3 36.bxc3 Rxh5 37.Rxh5 gxh5 38.Kc2 Kb7 39.a4 bxa4
40.Rb4+ Kc6 41.Rxa4 Kb5 42.Rh4 Rxd6 43.Rxh5+ Kc4 44.Rh4+ Kc5
  =  (-0.17)   Depth: 17/69   00:03:39  183051kN

(,  02.12.2005)



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