Author: Tim Foden
Date: 02:23:23 01/12/02
Go up one level in this thread
On January 11, 2002 at 16:42:15, Michael Schmolei wrote:
>I have already checked a few programs, they don't find it inside 7-8 minutes.
>Perhaps with faster hardware....?
>A study from Kazantsev
>
>[D]1R6/5p2/4P1pb/2K4p/2pB1N1k/4P3/6PP/2q5 w - -
>
>
>http://members.tripod.de/Michaels_Schachpage
Once again, Green Light has no clue :) It sticks with exf7 for 8 hours.
Cheers, Tim.
Game stage: Endgame
Current eval: -1.29
Ply Time Score Nodes Principal Variation
4 0.05 ++ 6500 g3+ (a=1.165 b=1.965 e=1.965)
4 0.06 +2.279 14349 exf7 Kg5 2. Ne6+ Kf5 3. f8=Q+ Bxf8+ 4. Nxf8
4 0.07 +2.279 14859 exf7 Kg5 2. Ne6+ Kf5 3. f8=Q+ Bxf8+ 4. Nxf8
5 0.10 +2.488 26009 exf7 Qc2 2. Bf6+ Kg4 3. f8=Q Bxf8+ 4. Rxf8
5 0.14 +2.488 39962 exf7 Qc2 2. Bf6+ Kg4 3. f8=Q Bxf8+ 4. Rxf8
6 0.33 -- 133752 exf7 (a=2.088 b=2.888 e=2.088)
6 0.37 +1.934 153661 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 c3 5.
Nxg6+ Kg5
6 0.49 +1.934 216801 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 c3 5.
Nxg6+ Kg5
7 0.60 +1.875 268206 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 c3 5.
Nxg6+ Kg5 6. Nf4
7 1.05 +1.875 513556 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 c3 5.
Nxg6+ Kg5 6. Nf4
8 1.38 +2.137 687505 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 Qc2 5.
f8=Q Qe4+ 6. Kd6 Bxf8+ 7. Rxf8
8 2.22 +2.137 1186657 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 Qc2 5.
f8=Q Qe4+ 6. Kd6 Bxf8+ 7. Rxf8
9 4.08 +2.106 2145049 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 Qc2 5.
f8=Q Bxf8 6. Rxf8 c3
9 5.61 5/39 Rb2 >
9 7.13 +2.106 3686677 exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 Qd2+ 4. Ke6 Qc2 5.
f8=Q Bxf8 6. Rxf8 c3
10 21.11 +2.040 10386k exf7 Qa3+ 2. Kd5 c3 3. Nxg6+ Kg5 4. f8=Q Bxf8 5.
Nxf8 c2 6. Ne6+ Kh4 7. g3+ Kh3 8. Nf4+ Kxh2
10 33.51 +2.040 17191k exf7 Qa3+ 2. Kd5 c3 3. Nxg6+ Kg5 4. f8=Q Bxf8 5.
Nxf8 c2 6. Ne6+ Kh4 7. g3+ Kh3 8. Nf4+ Kxh2
11 58.65 +1.899 29490k exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 c3 4. Nxg6+ Kg5 5.
f8=Q Bxf8 6. Nxf8 c2 7. Ne6+ Kh4 8. g3+ Kh3 9.
Nf4+ Kxh2
11 2:06 +1.899 63596k exf7 Qa3+ 2. Kd5 Qa5+ 3. Bc5 c3 4. Nxg6+ Kg5 5.
f8=Q Bxf8 6. Nxf8 c2 7. Ne6+ Kh4 8. g3+ Kh3 9.
Nf4+ Kxh2
12 6:23 +1.872 184115k exf7 Qa3+ 2. Kd5 c3 3. Ke4 Qa6 4. Rb6 Qa8+ 5. Nd5
c2 6. Rxg6 Bg5 7. Rg8 Qb7 8. Rg7
12 12:33 +1.872 367778k exf7 Qa3+ 2. Kd5 c3 3. Ke4 Qa6 4. Rb6 Qa8+ 5. Nd5
c2 6. Rxg6 Bg5 7. Rg8 Qb7 8. Rg7
13 19:34 +2.202 566218k exf7 Qa3+ 2. Kd5 c3 3. Ke4 Qa6 4. g3+ Kg4 5. Rb6
Qa8+ 6. Kd3 Bxf4 7. gxf4 c2 8. Rxg6+ Kh3 9. Kxc2
Qa2+ 10. Kc3 Qxf7
13 35:42 +2.202 1031m exf7 Qa3+ 2. Kd5 c3 3. Ke4 Qa6 4. g3+ Kg4 5. Rb6
Qa8+ 6. Kd3 Bxf4 7. gxf4 c2 8. Rxg6+ Kh3 9. Kxc2
Qa2+ 10. Kc3 Qxf7
14 1:06:03 +1.970 1898m exf7 Qa3+ 2. Kd5 c3 3. Ke4 c2 4. Nxg6+ Kg5 5. Rg8
Qa8+ 6. Rxa8 c1=Q 7. Ne7 Qc2+ 8. Kd5 Qb3+ 9. Kd6
Qxf7 10. Ra5+ Kg4 11. Nd5
14 2:42:03 +1.970 4729m exf7 Qa3+ 2. Kd5 c3 3. Ke4 c2 4. Nxg6+ Kg5 5. Rg8
Qa8+ 6. Rxa8 c1=Q 7. Ne7 Qc2+ 8. Kd5 Qb3+ 9. Kd6
Qxf7 10. Ra5+ Kg4 11. Nd5
15 4:40:03 +2.001 8029m exf7 Qa3+ 2. Kd5 c3 3. Ke4 Qa6 4. g3+ Kg4 5. Rb6
Qa8+ 6. Kd3 Bxf4 7. gxf4 c2 8. Rxg6+ Kh3 9. Rg8
Qc6 10. f8=Q c1=Q
15 8:38:11 17/39 Nxh5 >exit
local: t=8:38:16 nps=478984.0 n=14894652530 (22.2% / 77.8%) fh=75.4%
total: t=8:38:16 nps=478984.0 n=14894652530 draws=14955010
trans: probes=-1000132844 hits=613987660 (-61.39%) draft=447129911 (-44.71%)
tcuts: exact=1518 (-0.00%) upper=370301964 (-37.03%) lower=71102790 (-7.11%)
tstor: exact=3304 (0.00%) upper=1466722771 (74.19%) lower=510241089 (25.81%)
ext: check=1462495894 recap=28372484 ppush=27025566 1rep=60409303 thrt=0
q-moves: gen=513254502 tested=811080747 made/un=-1799383179 max-dep=14
max eval diff: part-1=7.532 part-2=1.802
>
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