Author: Slater Wold
Date: 16:13:23 04/12/04
Go up one level in this thread
On April 11, 2004 at 16:26:20, Jorge Pichard wrote:
>From the Book Capablanca's Best Chess Endings Page 270.
>
>How many programs can find the right move 42. Rg3-g2, with the idea to transfer
>the Rook to the h-file to protect the Pawn, there by releasing the Queen that is
>now tied down to its defense.
>
>New game,
>[D]8/pp4rk/2p1p1pq/3pP1Rr/1P1P1PQP/P5RK/8/8 w - - 0 1
>
>Analysis by Shredder 8:
>
>1. ± (0.99): 1.Rg1 Kh8 2.Rg2 Qh7 3.a4 Rxg5 4.Qxg5 Qg8 5.Qd8 Qxd8 6.Kg3
>2. ± (1.06): 1.a4 Kh8 2.Qxe6 Rxh4+ 3.Kg2 Rh2+ 4.Kf3 Ra2 5.Qc8+ Kh7 6.Rh3 Ra3+
>7.Kg2 Rxh3 8.Qxh3 Qxh3+ 9.Kxh3 Kg8 10.e6 Kf8 11.Kg3 a6
>3. ± (1.06): 1.Rg2 Kh8 2.Rg1 Kh7 3.Rg3 Kh8 4.Rg2 Qh7 5.Kg3 Qg8 6.Kf2 Rxg5 7.Qxg5
>Kh7 8.Ke2 Qf7 9.h5 gxh5 10.Ke3 Rxg5
>
>(Pichard, MyTown 11.04.2004)
>
>Here Shredder 8 only found the first move 1.Rg2 but failed to follow with the
>correct following moves. According to the actual game between Capablanca versus
>Eliskases Moscow 1936.
>
>These were the actual moves: 42.Rg3-g2 Kh7-h8 43.Kh3-g3 Kh8-h7 44. Rg2-h2
>now there is a threat of taking the e-Pawn-which Black promptly wards off with
>44....Rg7e7 45. Rh2-h3 Kh7-g7
EPD Kit revision date: 1996.04.21
found computer opening book file [./bookc.bin].
hash table memory = 192M bytes.
pawn hash table memory = 48M bytes.
EGTB cache memory = 16M bytes.
6 piece tablebase files found
18165kb of RAM used for TB indices and decompression tables
book learning disabled
result learning disabled
position learning disabled
pondering disabled.
Crafty v19.11 SE [Standard]
SE code disabled
White(1): setboard 8/pp4rk/2p1p1pq/3pP1Rr/1P1P1PQP/P5RK/8/8 w - - 0 1
White(1): st 99999
search time set to 99999.00.
White(1): go
clearing hash tables
time surplus 0.00 time limit 1666:39 (1666:39)
depth time score variation (1)
8 0.06 0.69 1. Rg2 Rg8 2. Rg1 Rxg5 3. fxg5 Qf8
4. h5 a5 5. Qxe6 axb4 6. hxg6+ Rxg6
8-> 0.11 0.69 1. Rg2 Rg8 2. Rg1 Rxg5 3. fxg5 Qf8
4. h5 a5 5. Qxe6 axb4 6. hxg6+ Rxg6
9 0.14 0.53 1. Rg2 Rg8 2. Rg1 Rxg5 3. fxg5 Qf8
4. h5 Rh8 5. h6 Qf2
9 0.33 0.80 1. a4 a6 2. Rg2 Rxg5 3. fxg5 Qh5 4.
Qxh5+ gxh5 5. Rf2 Re7 6. Rf6 Kg7
9-> 0.35 0.80 1. a4 a6 2. Rg2 Rxg5 3. fxg5 Qh5 4.
Qxh5+ gxh5 5. Rf2 Re7 6. Rf6 Kg7
10 0.72 0.78 1. a4 Rg8 2. Rxh5 Qxh5 3. Qxe6 Qd1
4. Qe7+ Rg7 5. Qc5 Qf1+ 6. Rg2 Qf3+
7. Kh2 Qxf4+ 8. Kh3
10-> 0.81 0.78 1. a4 Rg8 2. Rxh5 Qxh5 3. Qxe6 Qd1
4. Qe7+ Rg7 5. Qc5 Qf1+ 6. Rg2 Qf3+
7. Kh2 Qxf4+ 8. Kh3
11 1.17 0.67 1. a4 Rg8 2. Rxh5 Qxh5 3. Qxe6 Qd1
4. Qe7+ Rg7 5. Qc5 Qf1+ 6. Rg2 Qf3+
7. Kh2 Qxf4+ 8. Kh3 a6
11-> 1.47 0.67 1. a4 Rg8 2. Rxh5 Qxh5 3. Qxe6 Qd1
4. Qe7+ Rg7 5. Qc5 Qf1+ 6. Rg2 Qf3+
7. Kh2 Qxf4+ 8. Kh3 a6
12 2.83 0.78 1. a4 a6 2. a5 Rg8 3. Rxh5 Qxh5 4.
Qxe6 Qd1 5. Qe7+ Rg7 6. Qc5 Qf1+ 7.
Rg2 Qf3+ 8. Kh2 Qxf4+ 9. Kh3
12-> 3.33 0.78 1. a4 a6 2. a5 Rg8 3. Rxh5 Qxh5 4.
Qxe6 Qd1 5. Qe7+ Rg7 6. Qc5 Qf1+ 7.
Rg2 Qf3+ 8. Kh2 Qxf4+ 9. Kh3
13 4.27 0.50 1. a4 a6 2. a5 Rg8 3. Rxh5 Qxh5 4.
Qxe6 Qd1 5. Qe7+ Rg7 6. Qc5 Qf1+ 7.
Rg2 Qf3+ 8. Kh2 Qxf4+ 9. Kh3 Rf7
13 14.33 ++ 1. Rg2!!
13-> 23.89 1.17 1. Rg2
14 30.41 0.91 1. Rg2 Rg8 2. Kg3 Re8 3. Rf2 Rg8 4.
b5 Qf8 5. Qxe6 Qxa3+ 6. Kg4 Qd3 7.
bxc6 bxc6 8. Qxc6 Rxg5+ 9. hxg5 Qxd4
14-> 31.44 0.91 1. Rg2 Rg8 2. Kg3 Re8 3. Rf2 Rg8 4.
b5 Qf8 5. Qxe6 Qxa3+ 6. Kg4 Qd3 7.
bxc6 bxc6 8. Qxc6 Rxg5+ 9. hxg5 Qxd4
15 1:05 1.20 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rf7 7.
Rxh1 Qxh1+ 8. Qg2 Qxg2+ 9. Rxg2 Kh6
15-> 1:08 1.20 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rf7 7.
Rxh1 Qxh1+ 8. Qg2 Qxg2+ 9. Rxg2 Kh6
16 1:26 1.13 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rf7 7.
Rxh1 Qxh1+ 8. Kf2 Qe4 9. Kg3
16-> 1:31 1.13 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rf7 7.
Rxh1 Qxh1+ 8. Kf2 Qe4 9. Kg3
17 2:00 1.20 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rf7 7.
Qg3 Qxg3+ 8. R5xg3 Rh4 9. Rg4 Rh3+
10. R1g3 Rxg3+ 11. Rxg3 Kh6
17-> 2:13 1.20 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rf7 7.
Qg3 Qxg3+ 8. R5xg3 Rh4 9. Rg4 Rh3+
10. R1g3 Rxg3+ 11. Rxg3 Kh6
18 3:29 1.19 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rxg1 7.
Qxg1 Qc2 8. Qe3 Re7 9. Kg3 Re6 10.
Qg1
18-> 3:55 1.19 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rxg1 7.
Qxg1 Qc2 8. Qe3 Re7 9. Kg3 Re6 10.
Qg1
19 9:26 0.98 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rxg1 7.
Qxg1 Qh3+ 8. Qg3 Qf1+ 9. Qf2 Qh1+ 10.
Ke2 Qe4+ 11. Qe3 Re7 12. Qxe4 dxe4
13. Ke3
19-> 10:47 0.98 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rxg1 7.
Qxg1 Qh3+ 8. Qg3 Qf1+ 9. Qf2 Qh1+ 10.
Ke2 Qe4+ 11. Qe3 Re7 12. Qxe4 dxe4
13. Ke3
20 21:03 1.09 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rxg1 7.
Qxg1 Qh3+ 8. Qg3 Qf1+ 9. Qf2 Qh3+ 10.
Rg3 Qe6 11. Qg2 Re7 12. Rh3+ Kg7 13.
Kg3
20-> 24:10 1.09 1. Rg2 Kh8 2. Kg3 Kh7 3. Qxe6 Rxh4
4. Kf3 Rh1 5. Rg1 Qh2 6. Qg4 Rxg1 7.
Qxg1 Qh3+ 8. Qg3 Qf1+ 9. Qf2 Qh3+ 10.
Rg3 Qe6 11. Qg2 Re7 12. Rh3+ Kg7 13.
Kg3
21 339:59 1.35 1. Rg2 Kh8 2. a4 Qh7 3. Rg3 Rxg5 4.
fxg5 Re7 5. Rf3 Rf7 6. Rf6 Rxf6 7.
exf6 Qf7 8. Kg3 Kh7 9. Kf4 Qc7+ 10.
Ke3 Qf7 11. Qf4 a6 12. Kd3 b5 13. axb5
cxb5
21-> 351:43 1.35 1. Rg2 Kh8 2. a4 Qh7 3. Rg3 Rxg5 4.
fxg5 Re7 5. Rf3 Rf7 6. Rf6 Rxf6 7.
exf6 Qf7 8. Kg3 Kh7 9. Kf4 Qc7+ 10.
Ke3 Qf7 11. Qf4 a6 12. Kd3 b5 13. axb5
cxb5
22 470:59 1.35 1. Rg2 Kh8 2. a4 Qh7 3. Rg3 Rxg5 4.
fxg5 Re7 5. Rf3 Rf7 6. Rf6 Rxf6 7.
exf6 Qf7 8. Kg3 Kh7 9. Kf4 Qc7+ 10.
Ke3 Qf7 11. Qf4 a6 12. Kd3 b5 13. axb5
cxb5
22-> 488:16 1.35 1. Rg2 Kh8 2. a4 Qh7 3. Rg3 Rxg5 4.
fxg5 Re7 5. Rf3 Rf7 6. Rf6 Rxf6 7.
exf6 Qf7 8. Kg3 Kh7 9. Kf4 Qc7+ 10.
Ke3 Qf7 11. Qf4 a6 12. Kd3 b5 13. axb5
cxb5
? 23 929:00 1/21* 1. Rg2
White(1): ?
time=929:12 cpu=99% mat=0 n=131280082723 fh=62% nps=2.35M
ext-> chk=-1288147753 cap=403786044 pp=279064343 1rep=1055084077 m
ate=48259498
predicted=0 nodes=131280082723 evals=3696543063 50move=0
endgame tablebase-> probes=622 hits=5
hashing-> 234%(raw) 232%(depth) 99%(sat) 22%(pawn)
hashing-> 0%(exact) 74%(lower) 153%(upper)
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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