Author: Tim Foden
Date: 03:26:30 06/28/03
Go up one level in this thread
On June 28, 2003 at 02:36:39, Slater Wold wrote:
>In 1998, DB solved the following position in 5 seconds...
>
>[D]3rr1k1/1bqnbp1p/ppp1p1pB/6N1/3P3Q/3B4/PPP2PPP/3RR1K1 w - - 0 1
>
>Everyone pretty much agreed, it'd be a while before micro's found it.
>
>Fritz did. In about 4 hours.
>Rebel 10 did. In just over 10 minutes.
>Tascbase did (on a K6/300). In just over 8 minutes.
>
>
>SO, how about TODAY? 5 years later...
>
>Crafty couldn't solve it in 10 minutes.
>Fritz 6 couldn't solve it in 10 minutes.
>Shredder 7.04 did. In 3:37.
>(All run on a P4 3.06Ghz.)
>
>
>Anyone else want to give it a stab?
GLC 3.00, AXP 1.47GHz, 48MB Hash... 4 mins 33 secs:
Game stage: Opening
Current eval: 0.841
Ply Time Score Nodes Principal variation
3 0.010 +0.147 5091 Qg4 Bf8 2. Bxf8 Rxf8
3 0.020 +0.147 7612 Qg4 Bf8 2. Bxf8 Rxf8
4 0.030 +0.170 11093 Qg4 Qd6 2. Nf3 c5 3. dxc5 Nxc5
4 0.040 +0.170 17063 Qg4 Qd6 2. Nf3 c5 3. dxc5 Nxc5
5 0.070 +0.104 34165 Qg4 Nf6 2. Qh4 Nh5 3. Rf1 Bxg5 4. Bxg5
5 0.130 +0.421 69584 Qh3 Bf6 2. c3 Be7 3. Ne4
5 0.130 +0.421 73853 Qh3 Bf6 2. c3 Be7 3. Ne4
6 0.260 +0.314 143327 Qh3 Nf8 2. Qe3 Qd6 3. Nf3 Nd7
6 0.290 +0.314 156752 Qh3 Nf8 2. Qe3 Qd6 3. Nf3 Nd7
7 0.491 +0.362 280638 Qh3 Nf8 2. Qe3 c5 3. dxc5 Bxc5 4. Qh3 Nd7
7 1.011 +0.362 602435 Qh3 Nf8 2. Qe3 c5 3. dxc5 Bxc5 4. Qh3 Nd7
8 1.682 +0.353 979595 Qh3 Nf8 2. Bc4 Bf6 3. c3 b5 4. Bxf8 Bxg5
8 2.373 +0.353 1419512 Qh3 Nf8 2. Bc4 Bf6 3. c3 b5 4. Bxf8 Bxg5
9 5.758 +0.639 3645685 Qh3 Bxg5 2. Bxg5 Rc8 3. c3 c5 4. Qh4 a5 5. Bf4 Qc6
9 7.611 +0.639 4990624 Qh3 Bxg5 2. Bxg5 Rc8 3. c3 c5 4. Qh4 a5 5. Bf4 Qc6
10 19.568 +0.581 12060k Qh3 Nf8 2. Nxf7 Kxf7 3. Bxf8 Kxf8 4. Qxh7 Bd6 5.
Qxc7 Bxc7 6. Bxg6 Re7
10 21.391 +0.581 13429k Qh3 Nf8 2. Nxf7 Kxf7 3. Bxf8 Kxf8 4. Qxh7 Bd6 5.
Qxc7 Bxc7 6. Bxg6 Re7
11 33.798 +0.675 21221k Qh3 Bxg5 2. Bxg5 Rc8 3. Qh6 Qd6 4. c3 Qf8 5. Qh4
Qd6 6. Qe4 f5
11 45.165 +0.675 29243k Qh3 Bxg5 2. Bxg5 Rc8 3. Qh6 Qd6 4. c3 Qf8 5. Qh4
Qd6 6. Qe4 f5
12 1:33.63 +0.708 60635k Qh3 Nf8 2. Qf3 Bxg5 3. Bxg5 Rxd4 4. Qf6 e5 5. Bh6
Ne6 6. Rxe5 Rd5 7. Re3
12 1:44.59 +0.708 69385k Qh3 Nf8 2. Qf3 Bxg5 3. Bxg5 Rxd4 4. Qf6 e5 5. Bh6
Ne6 6. Rxe5 Rd5 7. Re3
13 2:42.99 +0.522 109248k Qh3 Nf8 2. Qf3 Bxg5 3. Bxg5 Rxd4 4. Qf6 e5 5. Bh6
Ne6 6. Rxe5 Qd8 7. Qf3 f5
13 4:33.86 +0.808 195009k Rxe6 fxe6 2. Bxg6 hxg6 3. Bg7 Bxg5 4. Qh8+ Kf7 5.
Qh7 Rg8 6. Be5+ Kf8 7. Bxc7 Rg7 8. Qh8+ Rg8 9.
Qh7
13 4:38.81 +0.808 198765k Rxe6 fxe6 2. Bxg6 hxg6 3. Bg7 Bxg5 4. Qh8+ Kf7 5.
Qh7 Rg8 6. Be5+ Kf8 7. Bxc7 Rg7 8. Qh8+ Rg8 9.
Qh7
14 5:37.70 +0.723 242192k Rxe6 fxe6 2. Bxg6 hxg6 3. Bg7 Bxg5 4. Qh8+ Kf7 5.
Qh7 Rg8 6. Be5+ Kf8 7. Bxc7 Rg7 8. Qh8+ Rg8 9.
Bd6+ Kf7 10. Qh7+ Kf6
14 11:03.5 +0.723 489665k Rxe6 fxe6 2. Bxg6 hxg6 3. Bg7 Bxg5 4. Qh8+ Kf7 5.
Qh7 Rg8 6. Be5+ Kf8 7. Bxc7 Rg7 8. Qh8+ Rg8 9.
Bd6+ Kf7 10. Qh7+ Kf6
Analyse>exit
local: t=11:08.1 nps=739405.1 n=493997266 (16.7% / 83.3%)
total: t=13:09.3 nps=726688.6 n=573542617
stats: fh=91.1%/3.95%/1.286% draws=67801
trans: probes=82407207 hits=7196538 (8.73%) draft=5048465 (6.13%)
tcuts: exact=401 (0.00%) upper=2243826 (2.72%) lower=1993961 (2.42%)
tstor: exact=861 (0.00%) upper=25206902 (68.08%) lower=11816153 (31.91%)
ext: check=15972473 recap=1830170 ppush=100861 1rep=1681562 thrt=0
q-moves: gen=500801267 tested=194201655 made/un=71509117 max-dep=14
max eval diff: part-1=2.837 part-2=3.640
Cheers, Tim.
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