Author: Tim Foden
Date: 04:34:16 01/03/02
Go up one level in this thread
On January 02, 2002 at 18:29:56, Roy Eassa wrote:
>How long does it take your program/engine to find White's winning move (and to
>achieve a score that shows the program understands that White is winning)?
>
>[D] r4b1k/pp3Ppp/n1p5/2q1B3/2r5/6RP/PP2Q1P1/5R1K w - - 0 1
Green Light Chess v2.15c, 48MB Hash, 920MHz Duron finds b4 after 31 seconds, and
gets a +2.75 score after 38 seconds.
Cheers, Tim. (http://www.7sun.com/chess/)
Analysis:
>anal
Game stage: Middle game
Current eval: -2.04
Ply Time Score Nodes Principal Variation
3 0.06 -2.134 5905 Re3 Rc2 2. Qd3
4 0.06 -2.444 6614 Re3 Rc2 2. Qd3 Rd8
4 0.08 -2.432 15336 Qh5 Re4 2. Rg5 Rd8
4 0.08 -2.304 18921 Rg5 Rc2 2. Qg4 Qe3
4 0.11 -2.300 27250 Rc3 Rxc3 2. Bxc3 Rd8 3. Be5
4 0.12 -2.300 30124 Rc3 Rxc3 2. Bxc3 Rd8 3. Be5
5 0.13 -2.522 33637 Rc3 Rxc3 2. Bxc3 Qd5 3. a3 Rd8
5 0.21 -2.517 89513 Qh5 Rc1 2. Rxc1 Qxc1+ 3. Kh2 Rd8
5 0.23 -2.078 99753 Rg5 Rc2 2. Qd3 Qe7 3. Qxc2 Qxg5
5 0.34 -2.078 150708 Rg5 Rc2 2. Qd3 Qe7 3. Qxc2 Qxg5
6 0.40 -1.918 184412 Rg5 Rc2 2. Qd3 Qc4 3. Qxc4 Rxc4 4. Kg1
6 0.51 -1.918 245003 Rg5 Rc2 2. Qd3 Qc4 3. Qxc4 Rxc4 4. Kg1
7 0.67 ++ 342972 Rg5 (a=-2.32 b=-1.52 e=-1.52)
7 0.78 -1.115 415313 Rg5 Rc2 2. Qe4 Rc1 3. Bxg7+ Bxg7 4. Qe8+ Qf8 5.
Qxf8+ Rxf8 6. Rxc1 Rxf7
7 1.55 -0.305 917055 Re3 Rc2 2. Bxg7+ Bxg7 3. Re8+ Bf8 4. Qf3 h6 5. Rxa8
Rxb2
7 1.58 -0.305 922976 Re3 Rc2 2. Bxg7+ Bxg7 3. Re8+ Bf8 4. Qf3 h6 5. Rxa8
Rxb2
8 1.97 -0.072 1176367 Re3 Rb8 2. Bxb8 Nxb8 3. Re5 Rc2 4. Qe4 Qd6
8 2.69 -0.072 1701571 Re3 Rb8 2. Bxb8 Nxb8 3. Re5 Rc2 4. Qe4 Qd6
9 3.46 -0.080 2191158 Re3 Rb8 2. Bxb8 Nxb8 3. Re5 Rc2 4. Qe4 Qd6 5. Re6
9 8.34 +0.235 5278204 Rg5 Rc1 2. Bxg7+ Bxg7 3. Rxc5 Rxf1+ 4. Qxf1 Nxc5 5.
Qf5 Na6 6. Qd7 Rb8 7. Qe7
9 9.30 +0.235 5883759 Rg5 Rc1 2. Bxg7+ Bxg7 3. Rxc5 Rxf1+ 4. Qxf1 Nxc5 5.
Qf5 Na6 6. Qd7 Rb8 7. Qe7
10 11.23 +0.155 7024136 Rg5 Rc1 2. Bxg7+ Bxg7 3. Rxc5 Rxf1+ 4. Qxf1 Nxc5 5.
Qf5 b6 6. b4 Na6 7. b5 cxb5 8. Qxb5
10 31.29 ++ 19585k b4 (a=-0.17 b=0.64 e=0.64)
10 38.82 +2.750 23887k b4 Rxb4 2. Rg5 h6 3. Bxg7+ Bxg7 4. Rxc5 Nxc5 5.
Qe8+ Rxe8 6. fxe8=Q+ Kh7 7. Rf7
10 40.65 +2.750 25200k b4 Rxb4 2. Rg5 h6 3. Bxg7+ Bxg7 4. Rxc5 Nxc5 5.
Qe8+ Rxe8 6. fxe8=Q+ Kh7 7. Rf7
11 48.13 +2.905 29555k b4 Rxb4 2. Rg5 h6 3. Qh5 Qxe5 4. Rxe5 Rd8 5. Kg1
Rb2 6. Re8
11 1:02 +2.905 39256k b4 Rxb4 2. Rg5 h6 3. Qh5 Qxe5 4. Rxe5 Rd8 5. Kg1
Rb2 6. Re8
12 1:38 +2.959 60003k b4 Rxb4 2. Rg5 h6 3. Qh5 Qxe5 4. Rxe5 Rd8 5. Re8
Rbd4 6. Rxd8 Rxd8 7. Kg1
12 3:09 +2.959 116374k b4 Rxb4 2. Rg5 h6 3. Qh5 Qxe5 4. Rxe5 Rd8 5. Re8
Rbd4 6. Rxd8 Rxd8 7. Kg1
13 4:19 +3.295 158016k b4 Rxb4 2. Rg5 h6 3. Qh5 Qxe5 4. Rxe5 Nc7 5. Re8
Rd4 6. Qc5 Ne6 7. Qe7
13 6:15 5/47 Rxg7 >exit
local: t=6:18 nps=614534.0 n=232320894 (22.7% / 77.3%) fh=90.5%
total: t=6:18 nps=614534.0 n=232320894 draws=392498
trans: probes=52444291 hits=12159572 (23.19%) draft=8383283 (15.99%)
tcuts: exact=362 (0.00%) upper=6529866 (12.45%) lower=1500076 (2.86%)
tstor: exact=1144 (0.00%) upper=21747173 (73.52%) lower=7832079 (26.48%)
ext: check=25887719 recap=564492 ppush=924 1rep=2185800 thrt=0
q-moves: gen=92508988 tested=45229879 made/un=14584295 max-dep=13
max eval diff: part-1=2.572 part-2=2.199
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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