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Subject: Re: Chiburdandze = 3 ply Zappa

Author: Mike Byrne

Date: 20:25:09 11/10/04

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On November 10, 2004 at 23:11:28, Anthony Cozzie wrote:

>[d]rn1q1rk1/pb3p1p/1p1p2p1/2p1pBP1/1PP2n2/P1Q2N2/1B1PPP1P/R3K1R1 w Q - 0 14
>
>1. Nf3xe5[S] Qd8-e7 2. Bf5-e4[S] d6xe5[S] 3. Be4xb7[S] Nf4xe2 4. Ke1xe2[S]
>Qe7xb7[S] 5. Qc3xe5[S] f7-f6[S] 6. Qe5-e6 Rf8-f7 7. b4xc5 b6xc5 8. Bb2xf6 Nb8-c6
>9. Qe6-d5 Ra8-e8 10. Ke2-f1[S] Nc6-d4 11. Qd5xb7 Rf7xb7 12. Bf6xd4
> = (1.15)	Depth: 14/43	00:08:30.99	609709kN (1193 KN/s, 4649 splits, 459 aborts)
>
>I would be really curious to see Crafty after an hour or so, because Zappa
>_refuses_ to get a good score for white here.  At 15 ply the score actually goes
>down to +0.9.

hmmm ...Crafty Classic was +.66 after 10 minutes

CM9K after a few minutes:

Time	Depth	Score	Positions	Moves
0:00	1/3	-0.06	1560		14.Bc2 f5 15.gxf6ep Qxf6
0:00	1/4	-0.06	4875		14.Bc2 f5 15.gxf6ep Qxf6
0:00	1/5	-0.02	26211		14.Bc2 f5 15.Kf1 Qe7 16.Qe3
0:01	1/6	-0.01	105262		14.Bc2 f6 15.bxc5 bxc5 16.Qb3 Qb6
0:02	2/7	-0.07	218492		14.Bc2 f6 15.bxc5 bxc5 16.Rb1 Qd7
					17.gxf6 Rxf6
0:04	2/7	0.49	481044		14.Nxe5 Qe8 15.Be4 Bxe4 16.Nxf7
					Nd3+ 17.Kf1 Qe5 18.Nh6+ Kh8 19.exd3
					Bxd3+ 20.Qxd3 Qxb2
0:06	2/8	0.49	726992		14.Nxe5 cxb4 15.Nxf7 bxc3 16.Nh6+
					Kg7 17.Bxc3+ Rf6 18.Bxf6+ Qxf6
					19.gxf6+ Kxh6 20.f7 Kg7
0:16	2/9	0.96	1834536		14.Nxe5 cxb4 15.axb4 Qe8 16.Be4
					Bxe4 17.Ng4 f6 18.Nxf6+ Rxf6 19.Qxf6

1:13	3/10	1.93	7563165		14.Nxe5 Qe7 15.Be4 dxe5 16.Bxb7
					Nxe2 17.Kxe2 Qxb7 18.Qxe5 f6 19.Qe6+
					Rf7 20.gxf6
2:52	3/11	1.98	18484874	14.Nxe5 d5 15.Qf3 gxf5 16.Qxf4
					d4 17.Qxf5 Qc7 18.b5 Re8 19.f4

(I'm not sure if this is the Cm10X or CM9K emgine -- I would have to check)

>
>The problem was Maya's reply, which loses instantly (after Nxe5 Nxe2).  Note
>that Zappa needs only 3 ply to play a !! move ;)
>
>1. Ke1xe2 d6xe5
> = (-0.01)	Depth: 2/8	00:00:00.01	0kN (60 KN/s, 0 splits, 0 aborts)
>1. Ne5xf7++
> + (0.29)	Depth: 3/14	00:00:00.06	4kN (73 KN/s, 0 splits, 0 aborts)
>1. Ne5xf7 Kg8xf7 2. Qc3-g7 Kf7-e8 3. Ke1xe2 Rf8xf5 4. Qg7xb7
> = (1.15)	Depth: 3/17	00:00:00.07	6kN (83 KN/s, 0 splits, 0 aborts)
>1. Ne5xf7 Ne2xc3[S] 2. Nf7-h6 Kg8-g7 3. Bb2xc3 Qd8-f6 4. Bc3xf6 Rf8xf6 5. g5xf6
>Kg7xh6 6. Bf5-e6 Nb8-c6
> = (4.13)	Depth: 11/29	00:00:05.47	6153kN (1124 KN/s, 468 splits, 46 aborts)
>
>anthony



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