Author: Bryan Hofmann
Date: 16:07:45 11/08/05
Go up one level in this thread
On November 08, 2005 at 11:11:04, Will Singleton wrote:
>On November 08, 2005 at 02:48:44, Bernhard Bauer wrote:
>
>>On November 08, 2005 at 01:21:03, Will Singleton wrote:
>>
>>>On November 07, 2005 at 17:14:45, Rob Basham wrote:
>>>
>>>>[D]6r1/p1pq1p1p/1p1p1Qnk/3PrR2/2n1P1PP/P1P5/4R3/6K1 w - - 0 1
>>>>
>>>>Well, it is easy for Fidelity Mach 3.....:-)
>>>>
>>>>Mach 3 at level one finds all the correct moves to this mate in 11....!
>>>>
>>>>Beginning with....Rh5+
>>>>
>>>>How does your machine do on this one...?
>>>>
>>>>Rob
>>>
>>>Oddly, Crafty 20.0 bh cannot solve this. Bug? does it happen in the latest
>>>crafty?
>>
>>
>>
>>Hi,
>>on my system Crafty v20.0 BH finds mate in 11 easily
>>same for v20.1
>>
>> 8-> 0.63 0.01 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
>> Kh5 4. Rh2+ Kg4 5. Rg2+ Kh4 6. Qf2+
>> Kh5 7. Qe2+ Kh4 8. Qf2+
>> 9 0.66 +1 1. Rh5+!!
>> 9 0.66 +3 1. Rh5+!!
>> 9 0.67 +M 1. Rh5+!!
>> 9 0.74 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
>> Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+
>> Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+
>> Ke5 10. Re2+ Ne3 11. Rxe3#
>> 9-> 0.82 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
>> Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+
>> Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+
>> Ke5 10. Re2+ Ne3 11. Rxe3#
>>
>>
>>
>>Kind regards
>>Bernhard
>
>So, of the four results for crafty posted here, two cannot find it, one takes a
>long time, and yours finds < 1 sec. I wonder what's going on?
>
>My setup is a p4 2.8ghz, now using crafty 20.1 bh, the rc file sets the hash to
>96mb, and the phash to 6mb. Winboard 4.26.
>
>Will
Removing the GUI from the picture an running crafty from the command line
entering
ponder off
setb 6r1/p1pq1p1p/1p1p1Qnk/3PrR2/2n1P1PP/P1P5/4R3/6K1 w - - 0 1
analyze
Both 20.0 & 20.1 BH compiles find the solution, 20.0 finds it quicker. I have no
idea what GUI is being used or what settings are in the crafty.rc file but a
simple hash=96M hashp=48M gives the correct results.
hash table memory = 96M bytes.
pawn hash table memory = 48M bytes.
Crafty v20.0 BH
White(1): ponder off
pondering disabled.
White(1): setb 6r1/p1pq1p1p/1p1p1Qnk/3PrR2/2n1P1PP/P1P5/4R3/6K1 w - - 0 1
+---+---+---+---+---+---+---+---+
8 | | . | | . | | . |<R>| . |
+---+---+---+---+---+---+---+---+
7 |<P>| |<P>|<Q>| . |<P>| . |<P>|
+---+---+---+---+---+---+---+---+
6 | |<P>| |<P>| |-Q-|<N>|<K>|
+---+---+---+---+---+---+---+---+
5 | . | | . |-P-|<R>|-R-| . | |
+---+---+---+---+---+---+---+---+
4 | | . |<N>| . |-P-| . |-P-|-P-|
+---+---+---+---+---+---+---+---+
3 |-P-| |-P-| | . | | . | |
+---+---+---+---+---+---+---+---+
2 | | . | | . |-R-| . | | . |
+---+---+---+---+---+---+---+---+
1 | . | | . | | . | |-K-| |
+---+---+---+---+---+---+---+---+
a b c d e f g h
White(1): analyze
clearing hash tables
time surplus 0.00 time limit 22.50 (3:30)
depth time score variation (1)
8-> 0.75 -5.00 1. h5 Rxf5 2. exf5 Qd8 3. Qxd8 Rxd8
4. fxg6 hxg6 5. Re7 Nxa3 6. Rxc7
9 1.39 +1 1. h5!!
9 2.06 +3 1. h5!!
9 3.05 +M 1. h5!!
9 6.00 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
9-> 6.26 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
10 7.91 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
10-> 9.86 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
11 13.06 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
11-> 14.41 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
12 18.91 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
12 19.08 +1 1. Rh5+!!
12 19.12 +3 1. Rh5+!!
12 19.45 +M 1. Rh5+!!
12 43.30 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+
Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+
Ke5 10. Re2+ Ne3 11. Rxe3#
12-> 43.84 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+
Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+
Ke5 10. Re2+ Ne3 11. Rxe3#
hash table memory = 96M bytes.
pawn hash table memory = 48M bytes.
Crafty v20.1 BH
White(1): ponder off
pondering disabled.
White(1): setb 6r1/p1pq1p1p/1p1p1Qnk/3PrR2/2n1P1PP/P1P5/4R3/6K1 w - - 0 1
+---+---+---+---+---+---+---+---+
8 | | . | | . | | . |<R>| . |
+---+---+---+---+---+---+---+---+
7 |<P>| |<P>|<Q>| . |<P>| . |<P>|
+---+---+---+---+---+---+---+---+
6 | |<P>| |<P>| |-Q-|<N>|<K>|
+---+---+---+---+---+---+---+---+
5 | . | | . |-P-|<R>|-R-| . | |
+---+---+---+---+---+---+---+---+
4 | | . |<N>| . |-P-| . |-P-|-P-|
+---+---+---+---+---+---+---+---+
3 |-P-| |-P-| | . | | . | |
+---+---+---+---+---+---+---+---+
2 | | . | | . |-R-| . | | . |
+---+---+---+---+---+---+---+---+
1 | . | | . | | . | |-K-| |
+---+---+---+---+---+---+---+---+
a b c d e f g h
White(1): analyze
clearing hash tables
time surplus 0.00 time limit 22.50 (+0.00) (3:30)
depth time score variation (1)
8-> 1.00 -5.11 1. h5 Rxf5 2. exf5 Qd8 3. Qxd8 Rxd8
4. hxg6 fxg6 5. fxg6 Kxg6
9 1.87 +1 1. h5!!
9 2.83 +3 1. h5!!
9 4.00 +M 1. h5!!
9 8.06 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
9-> 8.86 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
10 10.86 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
10-> 12.31 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
11 16.12 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
11-> 18.14 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
12 23.26 0.01 1. h5 Rxf5 2. exf5 Qd8 3. g5+ Kxh5
4. Rh2+ Kg4 5. Rg2+ Kf3 6. Rf2+ Kg3
7. Rg2+ Kf3
12 23.45 +1 1. Rh5+!!
12 23.50 +3 1. Rh5+!!
12 23.83 +M 1. Rh5+!!
12 58.98 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+
Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+
Ke5 10. Re2+ Ne3 11. Rxe3#
12-> 59.75 Mat11 1. Rh5+ Rxh5 2. g5+ Rxg5+ 3. hxg5+
Kh5 4. Rh2+ Nh4 5. Qh6+ Kg4 6. Qxh4+
Kf3 7. Rf2+ Ke3 8. Qg3+ Kxe4 9. Qf3+
Ke5 10. Re2+ Ne3 11. Rxe3
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