Author: Gian-Carlo Pascutto
Date: 13:59:43 11/13/01
Go up one level in this thread
On November 13, 2001 at 16:43:11, Michel Langeveld wrote:
>On November 13, 2001 at 15:18:12, Slater Wold wrote:
>
>>On November 13, 2001 at 13:18:55, Robert Hyatt wrote:
>>
>>>On November 13, 2001 at 12:00:47, Michel Langeveld wrote:
>>>
>>>>How long does your program need to see that Nxf1 is deadly lost:
>>>>
>>>>[D] 2r3k1/1b3p2/p4q2/2bp1NpQ/Pr6/3BP2P/3n1PPB/1R3RK1 b - - 0 30
>>>
>>>
>>>Should take crafty this long:
>>>
>>> 9 13.25 -1.53 1. ... Nxf1 2. Rxb4 Bxb4 3. Be5 Ng3
>>> 4. Nh6+ Kf8 5. Bxg3 Rc1+ <HT>
>>> 9-> 14.45 -1.53 1. ... Nxf1 2. Rxb4 Bxb4 3. Be5 Ng3
>>> 4. Nh6+ Kf8 5. Bxg3 Rc1+ <HT>
>>> 10 16.55 -- 1. ... Nxf1
>>> 10 37.19 -0.47 1. ... Nxf1 2. Be5 Rxb1 3. Bxb1 Ng3
>>> 4. fxg3 Bxe3+ 5. Kh2 Bg1+ 6. Kxg1 Qxe5
>>> 7. Ne7+ Kg7 8. Nxc8 Bxc8
>>> 10-> 43.73 -0.47 1. ... Nxf1 2. Be5 Rxb1 3. Bxb1 Ng3
>>> 4. fxg3 Bxe3+ 5. Kh2 Bg1+ 6. Kxg1 Qxe5
>>> 7. Ne7+ Kg7 8. Nxc8 Bxc8
>>> 11 44.67 -- 1. ... Nxf1
>>> 11 57.23 3.07 1. ... Nxf1 2. Be5 Rxb1 3. Bxb1 Ng3
>>> 4. fxg3 Bxe3+ 5. Kh2 Rc1 6. Ne7+ Kf8
>>> 7. Ng6+ fxg6 8. Qh6+ Ke7 9. Bxf6+ Kxf6
>>> 10. Bxg6
>>>
Some more:
Black(1): puzzling over a move to ponder.
clearing hash tables
nss depth time score variation (1)
5-> 0.17 -0.70 1. ... Nxb1 2. Nh6+ Kg7 3. Nf5+ Kf8
4. Rxb1 Rxb1+ 5. Bxb1 Kg8
6 0.26 -- 1. ... Nxb1
6 0.29 1.96 1. ... Nxb1 2. Be5 Rh4 3. Qxh4 gxh4
4. Bxf6
6 0.50 -0.36 1. ... Rxb1 2. Rxb1 Nxb1 3. Nh6+ Kf8
4. Bxb1 Bb4 5. Bd3 Rc1+ 6. Bf1 <HT>
6-> 0.67 -0.36 1. ... Rxb1 2. Rxb1 Nxb1 3. Nh6+ Kf8
4. Bxb1 Bb4 5. Bd3 Rc1+ 6. Bf1 <HT>
7 0.77 -- 1. ... Rxb1
7 1.04 2.38 1. ... Rxb1 2. Rxb1 Nxb1 3. Be5 Bd4
4. Bxf6 Rc1+ 5. Kh2 Bxf6
7 1.49 1.63 1. ... Nxb1 2. Be5 Rh4 3. Nxh4 Qxe5
4. Bh7+ Kf8 5. Rxb1
7 2.02 -0.28 1. ... Nxf1 2. Rxf1 Rxa4 3. Nh6+ Kf8
4. Be5 Qe7 5. Qd1
7-> 2.33 -0.28 1. ... Nxf1 2. Rxf1 Rxa4 3. Nh6+ Kf8
4. Be5 Qe7 5. Qd1
8 3.70 -0.13 1. ... Nxf1 2. Be5 Ng3 3. Nh6+ Kf8
4. Bxg3 Rxb1+ 5. Bxb1 Rc6 6. Ng4 Qe7
8-> 4.80 -0.13 1. ... Nxf1 2. Be5 Ng3 3. Nh6+ Kf8
4. Bxg3 Rxb1+ 5. Bxb1 Rc6 6. Ng4 Qe7
9 5.29 -- 1. ... Nxf1
9 7.84 0.07 1. ... Nxf1 2. Rxb4 Bxb4 3. Be5 Ng3
4. Nh6+ Kf8 5. Bxg3 Rc1+ 6. Kh2 Kg7
7. Ng4 <HT>
9-> 10.69 0.07 1. ... Nxf1 2. Rxb4 Bxb4 3. Be5 Ng3
4. Nh6+ Kf8 5. Bxg3 Rc1+ 6. Kh2 Kg7
7. Ng4 <HT>
10 14.63 0.20 1. ... Nxf1 2. Rxb4 Bxb4 3. Be5 Rc1
4. Nh6+ Kf8 5. Bxf1 Qg6 6. Qg4 Qb1
7. Qe2
10-> 21.48 0.20 1. ... Nxf1 2. Rxb4 Bxb4 3. Be5 Rc1
4. Nh6+ Kf8 5. Bxf1 Qg6 6. Qg4 Qb1
7. Qe2
11 48.54 0.07 1. ... Nxf1 2. Rxf1 Kf8 3. f4 g4 4.
Qxg4 Re8 5. Qe2 Rb2 6. Qf3 Kg8
11-> 1:01 0.07 1. ... Nxf1 2. Rxf1 Kf8 3. f4 g4 4.
Qxg4 Re8 5. Qe2 Rb2 6. Qf3 Kg8
12 1:56 -- 1. ... Nxf1
12 3:09 5.43 1. ... Nxf1 2. Be5 Rxb1 3. Bxb1 Ng3
4. fxg3 Bxe3+ 5. Kf1 a5 6. Bxf6 Ba6+
7. Ke1 Rc1+ 8. Qd1 Bf2+ 9. Kd2 Rxd1+
10. Kxd1 Bf1 11. Bxg5 Bxg2
12 5:41 3.79 1. ... Rxb1 2. Rxb1 Bf8 3. Ng3 Bd6
4. Rxb7 Rc1+ 5. Nf1 Rxf1+ 6. Bxf1 Bxh2+
7. Kxh2 Nxf1+ 8. Kg1 Nd2 9. Rb8+ Kg7
10. Qh8+ Kg6 11. Qxf6+ Kxf6 12. Ra8
Ke5 13. Rxa6
12 8:30 2.22 1. ... Rc6 2. Rxb4 Bxb4 3. Rd1 Bc8
4. Nd4 Rc5 5. Qh7+ Kf8 6. h4 Ne4 7.
Bxe4 dxe4 8. hxg5 Bf5 9. Nxf5 Qxf5
12 9:53 2.16 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 Nc4
4. f4 g4 5. Bg3 gxh3 6. Bh4 Qc3 7.
Qh6+ Kg8 8. Qg5+ Kh8 9. gxh3
12-> 11:24 2.16 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 Nc4
4. f4 g4 5. Bg3 gxh3 6. Bh4 Qc3 7.
Qh6+ Kg8 8. Qg5+ Kh8 9. gxh3
13 12:42 2.51 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 a5 4.
Nh6 Re8 5. Rxd2 Bxd2 6. Bd6+ Re7 7.
Nxf7 Bxe3 8. fxe3 Qxf7 9. Qxg5
13-> 20:41 2.51 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 a5 4.
Nh6 Re8 5. Rxd2 Bxd2 6. Bd6+ Re7 7.
Nxf7 Bxe3 8. fxe3 Qxf7 9. Qxg5
14 26:39 2.56 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 Nc4
4. f4 g4 5. hxg4 Nb2 6. g5 Qc3 7. g6
fxg6 8. Qh6+ Kf7 9. Qh7+ Kf8
14-> 41:44 2.56 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 Nc4
4. f4 g4 5. hxg4 Nb2 6. g5 Qc3 7. g6
fxg6 8. Qh6+ Kf7 9. Qh7+ Kf8
15 61:51 2.66 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 a5 4.
Nh6 Nc4 5. Ng4 Qg7 6. Bxc4 dxc4 7.
Be5 Qg6 <HT>
15-> 96:58 2.66 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 a5 4.
Nh6 Nc4 5. Ng4 Qg7 6. Bxc4 dxc4 7.
Be5 Qg6 <HT>
16 112:49 -- 1. ... Kf8
16 187:18 3.17 1. ... Kf8 2. Rxb4 Bxb4 3. Rd1 Ne4
4. Qg4 Be7 5. Nxe7 Kxe7 6. Bxe4 Rc4
7. Qg3 dxe4 8. Qb8 Bd5 9. Be5 Qe6 10.
a5
--
GCP
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