Author: Dann Corbit
Date: 19:45:50 01/05/01
Go up one level in this thread
On January 05, 2001 at 19:23:56, Joshua Lee wrote:
>Fritz6 - IM Nathanael Situru
>4rrk1/1q4b1/p5p1/1pPP1p1p/4p1n1/1P4N1/P3QBPP/1R1R2K1 b - - 0 1
>
>Analysis by Fritz 6:
>
>23...Nxf2--
> = (0.19) Depth: 1/3 00:00:00
>23...Nxf2-- 24.Qxf2
> ² (0.66) Depth: 1/3 00:00:00
>23...Nxf2 24.Qxf2 f4
> ² (0.47) Depth: 2/6 00:00:00
>23...Nxf2 24.Qxf2 f4 25.Ne2
> ² (0.50) Depth: 3/13 00:00:00 1kN
>23...Nf6!
> ² (0.47) Depth: 3/13 00:00:00 1kN
>23...Nf6 24.c6 Qc7 25.Qe3
> ² (0.69) Depth: 4/11 00:00:00 2kN
>23...Nxf2!
> ² (0.66) Depth: 4/11 00:00:00 2kN
>23...Nxf2! 24.Qxf2 f4 25.Ne2 Qc7
> ² (0.34) Depth: 4/11 00:00:00 4kN
>23...h4!
> ² (0.31) Depth: 4/11 00:00:00 4kN
>23...h4 24.Nf1 Nxf2 25.Qxf2 h3 26.Ne3 hxg2 27.Kxg2
> ² (0.56) Depth: 5/15 00:00:00 12kN
>23...Nxf2!
> ² (0.53) Depth: 5/19 00:00:00 14kN
>23...Nxf2! 24.Qxf2 f4 25.Ne2 f3 26.gxf3
> ² (0.47) Depth: 5/19 00:00:00 17kN
>23...Nxf2 24.Qxf2 Re5 25.c6 Qc7 26.Qe3 f4
> ² (0.34) Depth: 6/16 00:00:00 32kN
>23...Re5!
> ² (0.31) Depth: 6/18 00:00:00 59kN
>23...Re5! 24.c6 Qc7 25.Rbc1 Rd8 26.Rc5 Nxf2 27.Qxf2
> = (0.00) Depth: 6/18 00:00:00 70kN
>23...Re5 24.c6 Qc7 25.Rbc1 Rd8 26.Rc5 Nxf2 27.Qxf2
> = (0.00) Depth: 7/17 00:00:01 109kN
>23...Re5!
> = (-0.16) Depth: 8/22 00:00:01 236kN
>23...Re5! 24.c6 Qc7 25.a4 Nxf2 26.Qxf2 Rd8 27.axb5 axb5 28.Qc5
> = (-0.19) Depth: 8/24 00:00:01 330kN
>23...Re5 24.d6 e3 25.Be1 f4 26.Bc3 fxg3 27.Bxe5 Bxe5
> = (-0.25) Depth: 9/25 00:00:04 1178kN
>
>(Lee, N.B.I 05.01.2001)
>Fritz Has yet to find this IM's move after 2 and a half hours on a 800Mhz athlon
>i am trying it out with 184MB of hash tables which according to the fritzmark is
>not as good as just 128Mb??? my computer has plenty of ram so this i don't
>understand (256mb).
[D]4rrk1/1q4b1/p5p1/1pPP1p1p/4p1n1/1P4N1/P3QBPP/1R1R2K1 b - - 0 1
Crafty seems to have found a draw (or a drawish outcome at least).
If you could tell us what we are looking for, we may know when we find it.
Crafty's log file:
E:\crafty\release>crafty1
EPD Kit revision date: 1996.04.21
found computer opening book file [./bookc.bin].
hash table memory = 96M bytes.
pawn hash table memory = 10M bytes.
EGTB cache memory = 32M bytes.
draw score set to 0.00 pawns.
choose from book moves randomly (using weights.)
choose from 5 best moves.
book learning enabled
result learning enabled
position learning enabled
threshold set to 9 pawns.
6 piece tablebase files found
20899kb of RAM used for TB indices and decompression tables
Crafty v17.14
White(1): st 999
search time set to 999.00.
White(1): epdpfga jl.epd jl.out
PFGA: EPD record: 1
middle-game phase
clearing hash tables
time surplus 0.00 time limit 16:39 (16:39)
nss depth time score variation (1)
6 0.23 -0.75 1. ... Qe7 2. c6 Qh4 3. Nf1 Nxf2 4.
Qxf2 Qxf2+ 5. Kxf2 Kf7
6-> 0.32 -0.75 1. ... Qe7 2. c6 Qh4 3. Nf1 Nxf2 4.
Qxf2 Qxf2+ 5. Kxf2 Kf7
7 0.54 -1.09 1. ... Qe7 2. c6 Be5 3. Nf1 Bc7 4.
Bd4 Qd6
7 0.77 -1.04 1. ... Nxf2 2. Qxf2 f4 3. c6 Qc7 4.
Nf1 f3 5. Ne3 fxg2 6. Qxg2
7 1.18 -1.02 1. ... e3 2. Be1 f4 3. c6 Qc7 4. Nf1
Qd6
7 1.86 -1.01 1. ... Be5 2. d6 Qc6 3. Nf1 Rd8 4.
Rbc1 Rd7
7-> 1.90 -1.01 1. ... Be5 2. d6 Qc6 3. Nf1 Rd8 4.
Rbc1 Rd7
8 4.28 -1.11 1. ... Be5 2. Nf1 Rd8 3. d6 Qc6 4.
Rbc1 Rd7 5. Bd4 <HT>
8 4.67 -0.94 1. ... Nxf2 2. Qxf2 f4 3. c6 Qc7 4.
Nf1 f3 5. Ne3 fxg2 6. Qxg2 Qd6
8 5.35 -0.90 1. ... Re5 2. c6 Qc7 3. a4 Rb8 4. Ra1
Nxf2 5. Kxf2 Qd6 6. axb5 Rxb5 7. Rxa6
Rxb3
8 7.25 -0.86 1. ... Qf7 2. Bd4 Bxd4+ 3. Rxd4 Re5
4. Rbd1 Nf6 5. a4 h4 6. Nf1 bxa4 7.
bxa4 Nxd5 8. Qxa6
8-> 7.48 -0.86 1. ... Qf7 2. Bd4 Bxd4+ 3. Rxd4 Re5
4. Rbd1 Nf6 5. a4 h4 6. Nf1 bxa4 7.
bxa4 Nxd5 8. Qxa6
9 8.66 -0.72 1. ... Qf7 2. Bd4 Bxd4+ 3. Rxd4 Qf6
4. Rbd1 Nxh2 5. c6 Qh4 6. Qe3 Ng4
9-> 9.83 -0.72 1. ... Qf7 2. Bd4 Bxd4+ 3. Rxd4 Qf6
4. Rbd1 Nxh2 5. c6 Qh4 6. Qe3 Ng4
10 15.43 -0.68 1. ... Qf7 2. c6 Nxf2 3. Qxf2 f4 4.
Ne2 f3 5. gxf3 Qxf3 6. Qg2 Qe3+ 7.
Kh1 Qf2
10-> 21.85 -0.68 1. ... Qf7 2. c6 Nxf2 3. Qxf2 f4 4.
Ne2 f3 5. gxf3 Qxf3 6. Qg2 Qe3+ 7.
Kh1 Qf2
11 30.57 -0.66 1. ... Qf7 2. d6 f4 3. Nxe4 Qf5 4.
Re1 Bc3 5. d7 Qxd7 6. Rec1 Qc6 7. Rxc3
Rxe4
11 43.18 ++ 1. ... f4!!
11 48.08 -0.24 1. ... f4 2. Nxe4 Nxf2 3. Kxf2 Qe7
4. Re1 Bd4+ 5. Kf1 Bxc5 6. Nxc5 Qxc5
7. Qxe8 Rxe8 8. Rxe8+
11-> 54.86 -0.24 1. ... f4 2. Nxe4 Nxf2 3. Kxf2 Qe7
4. Re1 Bd4+ 5. Kf1 Bxc5 6. Nxc5 Qxc5
7. Qxe8 Rxe8 8. Rxe8+
12 1:03 -0.25 1. ... f4 2. Nxe4 Nxf2 3. Kxf2 Qe7
4. Re1 Bd4+ 5. Kf1 Bxc5 6. Qf3 Be3
7. Nf2 Qd6 8. Kg1 Bxf2+ 9. Kxf2
12-> 2:01 -0.25 1. ... f4 2. Nxe4 Nxf2 3. Kxf2 Qe7
4. Re1 Bd4+ 5. Kf1 Bxc5 6. Qf3 Be3
7. Nf2 Qd6 8. Kg1 Bxf2+ 9. Kxf2
13 2:19 -0.29 1. ... f4 2. Nxe4 Nxf2 3. Kxf2 Qe7
4. Re1 Bd4+ 5. Kf1 Bxc5 6. Nxc5 Qxc5
7. Qd3 Qd6 8. Kf2 h4 9. Rbc1 Rxe1 10.
Rxe1
13 5:40 -0.25 1. ... Qf7 2. d6 f4 3. Nxe4 Qf5 4.
Re1 Ne3 5. Nd2 Qxc5 6. Qd3 Qc3 7. Qxc3
Bxc3 8. Re2 Bxd2 9. Rxd2
13-> 6:29 -0.25 1. ... Qf7 2. d6 f4 3. Nxe4 Qf5 4.
Re1 Ne3 5. Nd2 Qxc5 6. Qd3 Qc3 7. Qxc3
Bxc3 8. Re2 Bxd2 9. Rxd2
14 8:45 0.00 1. ... Qf7 2. d6 f4 3. Nh1 f3 4. gxf3
exf3 5. Qd3 Qf4 6. Qd5+ Kh7 7. Bg3
Qe3+ 8. Bf2 Qf4
14-> 11:01 0.00 1. ... Qf7 2. d6 f4 3. Nh1 f3 4. gxf3
exf3 5. Qd3 Qf4 6. Qd5+ Kh7 7. Bg3
Qe3+ 8. Bf2 Qf4
time=16:39 cpu=99% mat=0 n=542305967 fh=90% nps=542799
ext-> checks=10471779 recaps=2370076 pawns=3649162 1rep=714381
thrt:38583
predicted=0 nodes=542305967 evals=147621247
endgame tablebase-> probes done=0 successful=0
Black(1):
I did not find this position in any game. It must be very recent.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.