Author: Dann Corbit
Date: 15:17:05 03/01/01
Go up one level in this thread
On March 01, 2001 at 17:42:57, Sune Larsson wrote:
>
> [D]4B3/5K2/5P1b/2p5/2p5/1k6/8/8 w - - 0 1
>
> A. Selesniew, 1921
>
>
> So few pieces and so tricky! Here we need the Deep ones at their best!
> Maybe also Diep? If you play this one out you sure will get dizzy!
>
> Test: White to move and draw. Not many choices - the black pawns
> are on the run.
Crafty does not see the draw. I also would choose Ke6. So, I am wondering,
what *is* the right move and why?
White(1): setboard 4B3/5K2/5P1b/2p5/2p5/1k6/8/8 w - -
White(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 16:39 (16:39)
nss depth time score variation (1)
9 0.14 -2.04 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Bd6 6. f7 Bf8
9-> 0.17 -2.04 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Bd6 6. f7 Bf8
10 0.30 -2.26 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kd5 Ke3
10 0.55 -2.11 1. Bc6 c3 2. Be4 Bg5 3. Ke6 Bxf6 4.
Kd5 c4 5. Kc5 Be5
10-> 0.62 -2.11 1. Bc6 c3 2. Be4 Bg5 3. Ke6 Bxf6 4.
Kd5 c4 5. Kc5 Be5
11 1.05 -2.45 1. Bc6 c3 2. Be4 c4 3. Kg6 Be3 4. f7
Bc5 5. Kf5 c2 6. Bxc2+ Kxc2 7. Ke4
Bf8
11 1.22 -2.26 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kd5 Ke3 7. Ke5
11-> 1.34 -2.26 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kd5 Ke3 7. Ke5
12 1.74 -2.43 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. f7 Ke3 7. Kd5
Kd3 <HT>
12-> 2.04 -2.43 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. f7 Ke3 7. Kd5
Kd3 <HT>
13 2.32 -- 1. Ke6
13 11.35 -2.45 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. f7 Be7 7. Kd5
Kd3 8. Ke5 c4
13-> 12.00 -2.45 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. f7 Be7 7. Kd5
Kd3 8. Ke5 c4
14 12.38 -- 1. Ke6
14 42.40 -2.68 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. f7 Ke2 7. Kc3
Ke3 8. Kc4 <HT>
14-> 43.71 -2.68 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. f7 Ke2 7. Kc3
Ke3 8. Kc4 <HT>
15 44.34 -- 1. Ke6
15 3:35 -4.39 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kb3 Kd3 7. Ka3
c4+ 8. Ka2 c3 9. f7 c2 10. Kb2
15-> 3:39 -4.39 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kb3 Kd3 7. Ka3
c4+ 8. Ka2 c3 9. f7 c2 10. Kb2
16 3:48 -4.55 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kb3 Kd3 7. Kb2
c4 8. Kc1 c3 9. Kd1 Bc5
16-> 4:03 -4.55 1. Ke6 c3 2. Bg6 c2 3. Bxc2+ Kxc2 4.
Kd5 Bf8 5. Kc4 Kd2 6. Kb3 Kd3 7. Kb2
c4 8. Kc1 c3 9. Kd1 Bc5
17 4:06 -- 1. Ke6
time=16:39 cpu=99% mat=-1 n=686397929 fh=22% nps=686844
ext-> chk=87034513 cap=0 pp=1227509 1rep=3202169 mate=64048
predicted=0 nodes=686397929 evals=50290241
endgame tablebase-> probes done=9115 successful=9115
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