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Subject: Re: ::sigh:: wac 17 problem

Author: Anthony Cozzie

Date: 13:25:27 10/15/04

Go up one level in this thread


On October 15, 2004 at 03:18:31, Rick Bischoff wrote:

>Hello,
>
>I am in the process of running wac at 5 minutes to make sure everything is going
>well.
>
>[D]1k5r/pppbn1pp/4q1r1/1P3p2/2NPp3/1QP5/P4PPP/R1B1R1K1 w - - 0 1
>
> 1    -388       0          3 1. Rxe4 fxe4
> 1    -278       0          6 1. Qc2 Qxc4
> 1      36       0          7 1. Bf4
> 2      20       0         87 1. Bf4 Kc8
> 2      22       0        238 1. Ne5 Rf6
> 3      34       0        637 1. Ne5 Rf6 2. Bf4
> 4      32       2       4002 1. Ne5 Rf6 2. Bg5 Rff8
> 5     157      14      22842 1. Ne5 Qxb3 2. Nxd7+ Kc8 3. axb3 Kxd7 4. Rxa7
> 6     157      59     106794 1. Ne5 Qxb3 2. Nxd7+ Kc8 3. axb3 Kxd7 4. Rxa7
> 7     153     239     407638 1. Ne5 Qxb3 2. Nxd7+ Kc8 3. axb3 Kxd7 4. Rxa7 Nd5
> 8     153    1059    1955992 1. Ne5 Qxb3 2. Nxd7+ Kc8 3. axb3 Kxd7 4. Rxa7 Rb6
>5. c4
> 9     143    4668    8221011 1. Ne5 Qxb3 2. axb3 Bxb5 3. Nxg6 Nxg6 4. Ra5 c6 5.
>Bb2
> 9     152   13537   24646838 1. b6 axb6 2. Ne5 Kc8 3. Nxg6 hxg6 4. Qxe6 Bxe6 5.
>Bf4
>move b6
>
>I do not understand why it switched to this b6 line.  Here is the position after
>the PV completed:
>[D]2k4r/1pp1n1p1/1p2b1p1/5p2/3PpB2/2P5/P4PPP/R3R1K1 b - - 0 5
>
>Now, I do have code the gives a pretty big bonus for open (and half open) files
>around the king, but this line opens them up on both sides, thereby negating
>that effect.  Is there some "deeper" chess meaning to this line?  Or more
>likely, is my engine wacked?  i.e., why did it take almost 16,000,000 nodes on
>ply 9?? My move ordering surely can't be that bad!  This is giving me a
>headache.

Zappa regular:

1. Nc4-e5 Rg6-f6 2. Qb3xe6 Bd7xe6
 = (0.12)	Depth: 2/8	00:00:00.00	0kN (107 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. Ne5xd7 Kb8-c8 3. a2xb3 Kc8xd7 4. Ra1xa7
 = (0.24)	Depth: 3/9	00:00:00.00	1kN (142 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. Ne5xd7 Kb8-c8 3. a2xb3 Kc8xd7 4. Ra1xa7
 = (0.24)	Depth: 4/12	00:00:00.03	4kN (110 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Rg6-d6 3. Bc1-g5
 = (0.44)	Depth: 5/12	00:00:00.09	14kN (152 KN/s, 0 splits, 0 aborts)
1. Nc4-e5++
 + (0.74)	Depth: 6/12	00:00:00.12	22kN (188 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6
 = (1.30)	Depth: 6/14	00:00:00.13	29kN (215 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6
 = (1.30)	Depth: 6/14	00:00:00.15	33kN (216 KN/s, 0 splits, 0 aborts)
1. Nc4-e5++
 + (1.60)	Depth: 7/17	00:00:00.23	59kN (255 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6 4. Bc1-f4
 = (1.69)	Depth: 7/17	00:00:00.24	74kN (302 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6 4. Bc1-f4
 = (1.69)	Depth: 7/17	00:00:00.27	84kN (307 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6
 = (1.53)	Depth: 8/17	00:00:00.34	123kN (356 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6
 = (1.53)	Depth: 8/18	00:00:00.39	150kN (377 KN/s, 0 splits, 0 aborts)
1. Nc4-e5++
 + (1.83)	Depth: 9/18	00:00:00.56	273kN (486 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6 4. c3-c4 Bb5-c6 5. Bc1-f4
 = (1.86)	Depth: 9/18	00:00:00.60	336kN (555 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6 4. c3-c4 Bb5-c6 5. Bc1-f4
 = (1.86)	Depth: 9/23	00:00:00.68	397kN (585 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5. Bc1-g5
Rh8-e8
 = (1.84)	Depth: 10/23	00:00:01.03	721kN (698 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5. Bc1-g5
Rh8-e8
 = (1.84)	Depth: 10/23	00:00:01.17	850kN (724 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Rg6-b6 4. Bc1-g5 Ne7-g6 5. c4xb5
Rb6xb5 6. Ne5xg6 h7xg6
 = (1.86)	Depth: 11/23	00:00:01.88	1532kN (812 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Rg6-b6 4. Bc1-g5 Ne7-g6 5. c4xb5
Rb6xb5 6. Ne5xg6 h7xg6
 = (1.86)	Depth: 11/24	00:00:02.49	2056kN (825 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5. Bc1-f4
Ne7-c6 6. Ra1-d1 Rh8-e8
 = (1.75)	Depth: 12/24	00:00:03.92	3388kN (863 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5. Bc1-f4
Ne7-c6 6. Ra1-d1 Rh8-e8
 = (1.75)	Depth: 12/25	00:00:06.40	5544kN (866 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5. Bc1-a3
Ne7-c6 6. Ba3-c5 Rh8-e8 7. d4-d5
 = (1.82)	Depth: 13/27	00:00:09.38	8204kN (874 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5. Bc1-a3
Ne7-c6 6. Ba3-c5 Rh8-e8 7. d4-d5
 = (1.82)	Depth: 13/27	00:00:14.62	12805kN (876 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. c3-c4 Rg6-a6 4. Bc1-a3 Ra6xa3 5. Ra1xa3
Bb5-e8 6. Ra3-a1 Be8-h5 7. f2-f3 Rh8-d8
 = (1.91)	Depth: 14/29	00:00:24.89	22064kN (886 KN/s, 0 splits, 0 aborts)

Zappa SE:
1. Nc4-e5 Rg6-f6 2. Qb3xe6 Bd7xe6
 = (0.12)	Depth: 2/8	00:00:00.00	0kN (107 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. Ne5xd7 Kb8-c8 3. a2xb3 Kc8xd7 4. Ra1xa7
 = (0.24)	Depth: 3/9	00:00:00.00	1kN (160 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. Ne5xd7 Kb8-c8 3. a2xb3 Kc8xd7 4. Ra1xa7
 = (0.24)	Depth: 4/12	00:00:00.02	4kN (161 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Rg6-d6 3. Bc1-g5
 = (0.44)	Depth: 5/12	00:00:00.07	14kN (184 KN/s, 0 splits, 0 aborts)
1. Nc4-e5++
 + (0.74)	Depth: 6/12	00:00:00.10	23kN (219 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6
 = (1.30)	Depth: 6/14	00:00:00.12	30kN (246 KN/s, 0 splits, 0 aborts)
1. Nc4-e5 Qe6xb3 2. a2xb3 Bd7xb5 3. Ne5xg6 h7xg6
 = (1.30)	Depth: 6/14	00:00:00.13	34kN (246 KN/s, 0 splits, 0 aborts)
1. Nc4-e5++
 + (1.60)	Depth: 7/18	00:00:00.45	186kN (411 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5 3. Ne5xg6[S] Ne7xg6 4. c3-c4 Bb5-c6 5.
Bc1-g5 Rh8-e8
 = (1.68)	Depth: 7/18	00:00:00.48	231kN (474 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5 3. Ne5xg6[S] Ne7xg6 4. c3-c4 Bb5-c6 5.
Bc1-g5 Rh8-e8
 = (1.68)	Depth: 7/18	00:00:00.50	241kN (481 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5.
Bc1-g5 Rh8-e8
 = (1.84)	Depth: 8/20	00:00:00.77	481kN (626 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5 3. c3-c4 Bb5-e8 4. Ne5xg6 Be8xg6 5.
Bc1-g5 Rh8-e8
 = (1.84)	Depth: 8/20	00:00:00.81	519kN (638 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5[S] 3. c3-c4 Bb5-e8 4. Ne5xg6[S] Be8xg6 5.
Bc1-a3 Ne7-c6 6. Ba3-c5 Rh8-e8 7. d4-d5
 = (1.82)	Depth: 9/24	00:00:01.42	1067kN (748 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5[S] 3. c3-c4 Bb5-e8 4. Ne5xg6[S] Be8xg6 5.
Bc1-a3 Ne7-c6 6. Ba3-c5 Rh8-e8 7. d4-d5
 = (1.82)	Depth: 9/24	00:00:01.51	1147kN (757 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5[S] 3. c3-c4 Bb5-e8 4. Ne5xg6[S] Be8xg6 5.
d4-d5 a7-a6 6. Bc1-b2 Rh8-g8 7. f2-f3 Kb8-c8
 = (2.01)	Depth: 10/24	00:00:03.10	2613kN (842 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5[S] 3. c3-c4 Bb5-e8 4. Ne5xg6[S] Be8xg6 5.
d4-d5 a7-a6 6. Bc1-b2 Rh8-g8 7. f2-f3 Kb8-c8
 = (2.01)	Depth: 10/24	00:00:03.27	2768kN (846 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5[S] 3. c3-c4 Bb5-e8 4. Ne5xg6[S] Ne7xg6 5.
Bc1-e3 a7-a6 6. d4-d5 Ng6-e5 7. Be3-d4 Ne5-d3 8. Bd4xg7 Nd3xe1
 = (1.99)	Depth: 11/25	00:00:06.29	5530kN (878 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Qe6xb3 2. a2xb3[S] Bd7xb5[S] 3. c3-c4 Bb5-e8 4. Ne5xg6[S] Ne7xg6 5.
Bc1-e3 a7-a6 6. d4-d5 Ng6-e5 7. Be3-d4 Ne5-d3 8. Bd4xg7 Nd3xe1
 = (1.99)	Depth: 11/25	00:00:06.79	5982kN (880 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Rg6-f6 2. Bc1-g5 Bd7-e8 3. Bg5xf6 Qe6xb3[S] 4. a2xb3[S] g7xf6[S] 5.
Ne5-f3[S] Be8xb5 6. c3-c4 Bb5-d7 7. Nf3-d2 Ne7-c6 8. f2-f3 Nc6xd4
 = (1.79)	Depth: 12/35	00:00:47.63	41508kN (871 KN/s, 0 splits, 0 aborts)
1. Nc4-e5[S] Rg6-f6 2. Bc1-g5 Bd7-e8 3. Bg5xf6 Qe6xb3[S] 4. a2xb3[S] g7xf6[S] 5.
Ne5-f3[S] Be8xb5 6. c3-c4 Bb5-d7 7. Nf3-d2 Ne7-c6 8. f2-f3 Nc6xd4
 = (1.79)	Depth: 12/35	00:00:50.61	44032kN (870 KN/s, 0 splits, 0 aborts)

So 9-ply with singular extensions needs 1.2M nodes, and 12 ply with singular
extensions needs 44M nodes, compared to 400K and 5M respectively for the regular
version.

anthony



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