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Subject: Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!?

Author: Uri Blass

Date: 07:48:48 10/31/05

On October 31, 2005 at 10:39:39, Jouni Uski wrote:

>21: Qf1, Endtest
>
>[D]8/6pk/1p6/8/PP3p1p/5P2/4KP1q/3Q4 w - - 0 1
>
>Analysis by Fruit 2.2.1:
>
>1.Qd3+ g6
>  =  (-0.15)   Depth: 1/5   00:00:00
>1.Qd3+ Kh6 2.Qd6+ Kg5 3.Qxb6
>  ²  (0.47)   Depth: 2/7   00:00:00
>1.Qc2+ Kh6 2.Qc6+ Kg5 3.Qb5+ Kf6 4.Qxb6+ Ke5
>  ²  (0.66)   Depth: 2/8   00:00:00
>1.Qc2+ Kh6 2.Qc6+ g6 3.Qxb6
>  ±  (0.72)   Depth: 3/8   00:00:00
>1.Qc2+ Kh6 2.Qc6+ g6 3.Qxb6 h3
>  ±  (0.76)   Depth: 4/11   00:00:00
>1.Qc2+ Kh6 2.Qc6+ g6 3.Qxb6 h3 4.a5
>  ±  (0.92)   Depth: 5/11   00:00:00
>1.Qc2+ Kh6 2.Qc6+ g6 3.Qxb6 h3 4.Qd4 Kh5 5.Qd5+ g5
>  ±  (0.89)   Depth: 6/16   00:00:00  5kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.Qxg2 hxg2
>  ±  (1.31)   Depth: 6/18   00:00:00  15kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qh2 5.Qb1+ Kg8
>  ²  (0.30)   Depth: 7/18   00:00:00  16kN
>1.Qc2+ Kh6 2.a5 bxa5 3.bxa5 Qg1 4.Qc6+ Kh5 5.Qe8+ Kh6 6.Qh8+ Kg6 7.Qxh4
>  ±  (0.99)   Depth: 7/20   00:00:00  30kN
>1.Qc2+ Kh6 2.a5 bxa5 3.bxa5 Qg1 4.Qc6+ Kh5 5.Qe6 Qc1 6.Qg4+ Kh6 7.Qxh4+ Kg6
>8.Qg4+ Kf6
>  ±  (1.14)   Depth: 8/21   00:00:00  72kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qe6+ Kf8
>  +-  (1.94)   Depth: 8/21   00:00:00  72kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qc8+ Kf7 7.Qd7+ Kf6
>  +-  (1.99)   Depth: 9/21   00:00:01  84kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qe6+ Kh7 7.Qe4+ Kg8 8.Qe8+
>Kh7
>  +-  (2.05)   Depth: 10/22   00:00:01  116kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qe6+ Kh7 7.Qe4+ Kh6 8.a7
>Qb5+ 9.Qd3 Qb2+ 10.Qd2
>  +-  (2.50)   Depth: 11/22   00:00:01  185kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qc8+ Kh7 7.Qb7 Qc5 8.a7
>Qc2+ 9.Ke1
>  +-  (2.42)   Depth: 12/26   00:00:01  333kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qc8+ Kh7 7.Qb7 Qc5 8.a7
>Qc4+ 9.Kd2 Qd4+ 10.Ke1
>  +-  (2.49)   Depth: 13/28   00:00:01  682kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qc8+ Kh7 7.b7 Qb5+ 8.Kd2 Qb4+
>9.Kd3 Qb5+ 10.Ke4 Qb1+ 11.Kxf4 Qb4+ 12.Ke5
>  +-  (2.51)   Depth: 14/33   00:00:02  1470kN
>1.Qf1 h3 2.a5 bxa5 3.bxa5 Qg2 4.a6 Qg5 5.Qxh3+ Kg8 6.Qc8+ Kh7 7.Qb7 Qc5 8.a7
>Qc4+ 9.Kd2 Qd4+ 10.Ke1 Qc3+ 11.Kf1 Qd3+ 12.Kg2 Qg6+ 13.Kf1
>  +-  (2.57)   Depth: 15/33   00:00:04  3225kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qc8+ Kh7 7.b7 Qb5+ 8.Kd2 Qb4+
>9.Kd3 Qb5+ 10.Ke4 Qb1+ 11.Ke5 Qa1+ 12.Kf5 Qb1+ 13.Kxf4 Qb4+ 14.Ke5
>  +-  (2.51)   Depth: 16/37   00:00:09  7311kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.Qc8+ Kh7
>9.b7 Qb5+ 10.Kg2 Qg5+ 11.Kh2 Qh6+ 12.Qh3 a4 13.b8Q Qxh3+ 14.Kxh3
>  +-  (7.90)   Depth: 17/41   00:00:18  15268kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.b7 Kh7
>9.Qc8 Qb5+ 10.Kg2 Qg5+ 11.Kh2 Qh6+ 12.Qh3 a4 13.b8Q Qxh3+ 14.Kxh3
>  +-  (7.90)   Depth: 18/41   00:00:23  19134kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.Qc8+ Kh7
>9.b7 Qb5+ 10.Kg2 Qg5+ 11.Kh2 Qh6+ 12.Qh3 a4 13.Qxh6+ Kxh6 14.b8Q g5 15.Qd6+ Kg7
>  +-  (8.24)   Depth: 19/44   00:00:32  27305kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.b7 Kh7
>9.Qh3+ Kg6 10.Qc8 Qb5+ 11.Kg2 a4 12.b8Q Qxb8 13.Qxb8 a3 14.Qd6+ Kf5 15.Qxa3
>  +-  (9.22)   Depth: 20/58   00:00:57  45775kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.b7 Kh7
>9.Qh3+ Kg6 10.Qc8 Qb5+ 11.Kg2 a4 12.b8Q Qxb8 13.Qxb8 a3 14.Qd6+ Kf5 15.Qc5+ Ke6
>16.Qxa3
>  +-  (9.24)   Depth: 21/58   00:01:13  56892kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.b7 Kh7
>9.Kg2 Qg5+ 10.Qg4 Qb5 11.Qh3+ Kg6 12.Qc8 a4 13.b8Q Qxb8 14.Qxb8 a3 15.Qd6+ Kf5
>16.Qxa3
>  +-  (9.22)   Depth: 22/58   00:01:21  62451kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh8 8.b7 Kh7
>9.Kg2 Qg5+ 10.Qg4 Qb5 11.Qh3+ Kg6 12.Qc8 a4 13.b8Q Qxb8 14.Qxb8 a3 15.Qd6+ Kf5
>16.Qc5+ Ke6
>  +-  (9.24)   Depth: 23/68   00:02:14  98917kN
>1.Qf1 h3 2.a5 bxa5 3.b5 Qg2 4.b6 Qg5 5.Qxh3+ Kg8 6.Qd7 Qe5+ 7.Kf1 Kh7 8.b7 a4
>9.Qxa4 g6 10.Qd7+ Kh6 11.Qc8 Qb5+ 12.Kg2 Qg5+ 13.Kh2 Qe5 14.b8Q Qxb8 15.Qxb8 g5
>16.Qd6+ Kg7
>  +-  (9.68)   Depth: 24/86   00:16:35  680670kN, tb=17
>
>Jouni
>
>PS. Of course Fruit is new reference now

It is certainly not a record.
I remember 120 ply search from fruit but unfortunately I do not remember where I
saved the analysis.

The problem is that fruit has no partial extensions and it extends too much.

A full ply both for check extension and for single reply extension seem to be
too much.

Uri

Too much? James Constance 01:50:38 11/01/05
- Re: Too much? Uri Blass 01:59:21 11/01/05
Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Wayne Lowrance 08:32:26 10/31/05
- Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Robert Hyatt 09:40:07 10/31/05
  - Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Tom Likens 16:27:53 10/31/05
    - Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Dann Corbit 17:23:45 10/31/05
- Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Joachim Rang 09:01:53 10/31/05
- Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Tom Likens 08:57:57 10/31/05
- Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Norm Pollock 08:53:57 10/31/05
- Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Uri Blass 08:53:36 10/31/05
  - Re: Fruit 2.2.1 and 86 ply: a record or misprint !?!? Wayne Lowrance 12:46:00 10/31/05
  - LOL James T. Walker 09:11:21 10/31/05

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