Author: Mike Byrne
Date: 13:32:41 04/16/05
Go up one level in this thread
On April 16, 2005 at 16:24:31, John Merlino wrote:
>Just for fun, I made a few tiny adjustments to the position, and came up with
>this:
>
>[D]8/8/pp1p4/6p1/2ppK1Pk/3P3P/5PP1/8 w - - 0 1
>
>After playing around with several lines, I'm guessing that this is a Mate for
>White in no less than 20 moves. The King can't find it easily unless I push all
>the way past White's 8th move, and then it says Mate in 14.
>
>White has to spend a lot more time in this position ensuring that he wins the
>pawn race AND avoids stalemate.
>
>What does your awesome machine say? How about ChestUCI, Franz?
>
>jm
I will let it run -- but it saw fairly qucikly that white had winning advantage:
White(2): 8/8/pp1p4/6p1/2ppK1Pk/3P3P/5PP1/8 w - - 0 1
White(1): g
clearing hash tables
time surplus 59.62 time limit 1000:00 (1000:00)
depth time score variation (1)
starting thread 1
9 0.05 1.06 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 b4
4. Kc4 d5+ 5. Kxb4 d4 6. Kc4
9-> 0.06 1.06 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 b4
4. Kc4 d5+ 5. Kxb4 d4 6. Kc4
10 0.08 1.14 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 b4
4. Kc4 b3 5. Kxb3 d5 6. Kb4
10-> 0.09 1.14 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 b4
4. Kc4 b3 5. Kxb3 d5 6. Kb4 (s=4)
11 0.09 +1 1. dxc4!!
11 0.09 +3 1. dxc4!!
11 0.13 2.56 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. Kxd5 b4 5. Kc4 b3 6. Kc3 b2 7. Kxb2
(s=3)
11-> 0.17 2.56 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. Kxd5 b4 5. Kc4 b3 6. Kc3 b2 7. Kxb2
(s=2)
12 0.24 2.56 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. Kxd5 b4 5. Kc4 b3 6. Kc3 b2 7. Kc2
b1=Q+ 8. Kxb1
12-> 0.34 2.56 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. Kxd5 b4 5. Kc4 b3 6. Kc3 b2 7. Kc2
b1=Q+ 8. Kxb1 (s=2)
13 0.61 2.46 1. dxc4 b5 2. Kxd4 bxc4 3. Kxc4 d5+
4. Kxd5 a5 5. Kc4 a4 6. Kc3 a3 7. Kc2
a2 8. Kb2 a1=Q+ 9. Kxa1
13-> 0.78 2.46 1. dxc4 b5 2. Kxd4 bxc4 3. Kxc4 d5+
4. Kxd5 a5 5. Kc4 a4 6. Kc3 a3 7. Kc2
a2 8. Kb2 a1=Q+ 9. Kxa1
14 1.28 -1 1. dxc4
14 1.56 1.66 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. f4 gxf4 5. Kxd5 b4 6. Kc4 b3 7.
Kxb3 Kg5 8. Kc3
14-> 1.94 1.66 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. f4 gxf4 5. Kxd5 b4 6. Kc4 b3 7.
Kxb3 Kg5 8. Kc3
15 3.33 1.70 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. f4 gxf4 5. Kxd5 b4 6. Kc4 b3 7.
Kxb3 Kg5 8. Kc3 Kh4
15-> 4.11 1.70 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. f4 gxf4 5. Kxd5 b4 6. Kc4 b3 7.
Kxb3 Kg5 8. Kc3 Kh4 (s=3)
16 6.06 1.90 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. f4 gxf4 5. Kxd5 b4 6. Kc4 b3 7.
Kxb3 Kg5 8. Kc3 Kh4 9. Kd4 (s=2)
16-> 10.47 1.90 1. dxc4 b5 2. cxb5 axb5 3. Kxd4 d5
4. f4 gxf4 5. Kxd5 b4 6. Kc4 b3 7.
Kxb3 Kg5 8. Kc3 Kh4 9. Kd4 (s=2)
17 14.25 +1 1. dxc4!!
17 14.74 +3 1. dxc4!!
17 15.09 +M 1. dxc4!!
17 17.86 9.33 1. dxc4 b5 2. Kxd4 b4 3. Kd3 b3 4.
Kc3 b2 5. Kxb2 a5 6. Kb3 a4+ 7. Kxa4
d5 8. c5 d4 9. c6 d3 10. Kb3
17-> 19.39 9.33 1. dxc4 b5 2. Kxd4 b4 3. Kd3 b3 4.
Kc3 b2 5. Kxb2 a5 6. Kb3 a4+ 7. Kxa4
d5 8. c5 d4 9. c6 d3 10. Kb3
18 24.47 9.33 1. dxc4 b5 2. Kxd4 b4 3. Kd3 b3 4.
Kc3 b2 5. Kxb2 a5 6. Kb3 a4+ 7. Ka2
a3 8. Kxa3 d5 9. c5 d4 10. c6 d3 11.
Kb3 <HT>
18-> 27.99 9.33 1. dxc4 b5 2. Kxd4 b4 3. Kd3 b3 4.
Kc3 b2 5. Kxb2 a5 6. Kb3 a4+ 7. Ka2
a3 8. Kxa3 d5 9. c5 d4 10. c6 d3 11.
Kb3 <HT> (s=2)
19 29.11 +1 1. dxc4!!
19 36.47 9.91 1. dxc4 b5 2. Kxd4 b4 3. Kd3 b3 4.
Kc3 b2 5. Kxb2 a5 6. Kb3 d5 7. cxd5
a4+ 8. Kb2 a3+ 9. Ka1 a2 10. f4 Kg3
11. fxg5 Kxg2 12. Kxa2 Kxh3
19 37.81 4/8* 1. g3+
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