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Subject: Re: Mate announcements: Chessmaster rulez!

Author: leonid

Date: 08:33:21 06/03/01

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On June 03, 2001 at 00:04:05, Heiner Marxen wrote:

>On June 02, 2001 at 14:36:59, Mike S. wrote:
>
>>On June 02, 2001 at 09:19:46, Uri Blass wrote:
>>
>>>I have some position with only one queen and also from real games(ICC
>>>tournaments)
>>>I used chessmaster6000(ss=10)
>>
>>Chess Tiger 14 has also shown some impressively fast mate announcements
>>recently, so I chose it to compare with your Chessmaster 6000 results, using an
>>P3/700 with 24 MB Hash. But except in the 2nd position, CM is (much) better
>>here... (I didn't test the last two very long mates). CM's higher selectivity
>>setting - 10 isn't the standard IIRC? - seems to work fine for this type of
>>positions.
>
>For comparison I have attached some Chest results.  They have been done
>on a K7/600 with 350 MB hash (and no EGTBs).

I looked only few positions that you indicated already as not very deep. My
program is limited by 13 moves. Also too many moves are just to long to wait
when search is done without hash.

Search done on LLchess solver. Brute force. Celeron 600Mhz. No hash.



>>Celes-Amatuer
>>[D]3r3k/p1rB3p/1p3q2/1Q2R1p1/2P1p3/2P1B3/P5K1/3R4 w - - 0 1
>>>Mate in at most 11(chessmaster6000 needs a long time to see mate in 13)
>>
>>CT 14/P3-700: No mate announcement within 3 minutes.
>
>There does not exist a mate in 9, 1.3 hours.
>
>>[D]3r3k/p2B3p/1p3q2/1Qr2Rp1/2P1p3/2P1B3/P5K1/3R4 w - - 0 1
>>>Chessmaster6000 on PIII850 says
>>>40.Bc5 with the following scores
>>>Mate in 11 13 seconds
>>>Mate in 9 21 seconds
>>>Mate in 8 30 seconds
>
>>Analysis by Chess Tiger 14.0:
>>
>>1.Bxc5 a6 2.Rxf6 axb5 3.Bd4 Kg7 4.Rdf1
>>  +-  (20.04) Depth:  9   00:00:00  103kN
>>  +-  (#8)    Depth: 11   00:00:14  4053kN
>
>Mate in 8 (11.4 min):
>Bxc5 a6 Rxf6 axb5 Bd4 Kg7 Rdf1 Rxd7 Rd6+ Kg8 Rxd7 h5 Rg7+ Kh8 Rf8#


No mate in 7 moves - 11 min. 57 sec.
Mate in 8 moves - 1 hour 28 min, 41 sec.


>>Arasen-Fritz
>>Hard
>>[D]2kr3r/ppp2pQ1/4b2p/8/6Rq/8/PPP3K1/RNB1N3 b - - 0 1
>>>Chessmaster can see mate in 16 after a long time when the main line
>>begins with 1...Bxg4 2.Bf4
>>
>>CT 14/P3-700: No mate announcement within 3 minutes.
>
>There is no mate in 8, 24.8 minutes.
>
>>>I already posted the position after 20...Bxg4 21.Qc3 and in that position
>>>chessmaster needs only 20 seconds to see mate in 10 and 24 seconds to
>>>see mate in 9.
>>
>>CT 14/P3-700: No mate announcement within 3 minutes.
>>
>>Armegaddon-chesterX
>>[D]8/6p1/1p3k2/1pq5/4pPQ1/1P4PK/P3P2P/2q5 b - - 0 1
>>>Chessmaster6000
>>>47...Qg1
>>>mate in 12 18 seconds
>>>mate in 8 24 seconds
>>
>>Analysis by Chess Tiger 14.0:
>>
>>1...g5 2.fxg5+ Q5xg5 3.Qxg5+ Kxg5 4.Kg2 Qe1 5.e3 Qe2+ 6.Kg1 Qxe3+ 7.Kf1 Qd3+
>>8.Kf2 Qd2+ 9.Kg1 Qxa2
>>  -+  (-11.36)   Depth: 8   00:00:00  99kN
>>  -+  (-12.02)   Depth: 8   00:00:00  118kN
>>1...Qf1+ 2.Kh4 Qfg1 3.h3 Qge3 4.a4
>>  -+  (-12.26)   Depth: 8   00:00:00  140kN
>>  -+  (-#7)      Depth: 11  00:01:21  19469kN
>
>Mate in 7 (7.10 sec):

No mate in 6 moves - 9.01 sec
Mate in 7 moves - 2,7 sec.


>Qf1+ Kh4 Qfg1 Kh3 g5 Qd7 Qf5+ Qxf5+ Kxf5 fxg5 Kxg5 g4 Qxg4#
>
>>[D]8/6p1/1p3k2/1pq5/4pPQK/1P4P1/P3P2P/5q2 b - - 0 1
>>>48...Qf5+ mate in 12 8 seconds
>>>48...g6 mate in 8 1:15
>>>48...Qg2 mate in 7 1:19
>>
>>Analysis by Chess Tiger 14.0:
>>
>>1...Qf5 2.Qxf5+ Kxf5 3.g4+ Kf6 4.Kg3 Qg1+ 5.Kh3 b4 6.a4 bxa3 7.b4 a2 8.b5 Qe3+
>>9.Kh4 Qxe2
>>  -+  (-19.80)   Depth:  9   00:00:00  91kN
>>  -+  (-23.54)   Depth: 11   00:00:07  1730kN
>>1...Qg2 2.Qg5+ Qxg5+ 3.fxg5+ Kf5 4.h3 g6 5.a4 Qxe2 6.g4+ Kf4 7.axb5 Qf2#
>>  -+  (-#7)   Depth: 11   00:03:26  49308kN
>>  -+  (-#7)   Depth: 11   00:03:26  49308kN
>
>Mate in 6 (1.91 sec):
>Qfg1 Kh3   g5    Qd7   Qf5+   Qxf5+  Kxf5   fxg5   Kxg5   g4     Qxg4#


Mate in 6 moves - 2.9 sec.

Cheers,
Leonid.


>>Bringer-Chezz
>>[D]8/5k2/8/7p/4K2P/6P1/5P2/8 w - - 0 1
>>>Chessmaster without tablebases
>>>6:49 f4 mate in 17
>>>6:50 Ke5 mate in 16
>>
>>a) with 4-piece tbs:
>>
>>Analysis by Chess Tiger 14.0:
>>
>>1.g4 Kg6 2.gxh5+ Kxh5
>>  +-  (13.56) Depth: 12   00:00:00  45kN, tb=236
>>  +-  (#15)   Depth: 16   00:00:13  2921kN, tb=3871
>>
>>b) without tb access:
>>
>>CT 14/P3-700: No mate announcement within 3 minutes.
>
>Mate in 16 (20.4 minutes) with f3 or Kf5.
>Still waiting for a PV.  More probably later.
>
>Heiner
>
>
>>Hossa-Deep Shredder
>>[D]6k1/p3q1b1/4N3/3p1PR1/2pP4/1p2P2P/7P/3K4 b - - 0 1
>>>Chessmaster6000
>>>1:46 52...b2 mate in 14
>>
>>CT 14/P3-700: No mate announcement within 3 minutes.
>>
>>Postmodernist-tristram
>>Hard
>>[D]4rb1r/pk1b2p1/1P1p1n1p/3p4/1R1P2P1/1Q2B3/1PP2P1P/4K2R w K - 0 1
>>>Chessmaster6000
>>>12:52 26.bxa7 mate in 15
>>>main line begins with 26.bxa7 Kc7 27.Rb7+ Kd8 28.a8Q+ Kc7 29.Rxd7+ Kxd7
>>>30.Qab7+ Ke6 31. Qd3 Ne4 32.b3
>>
>>(not tested)
>>
>>QuerkX-hiarcsX
>>[D]1kr5/1b3pQ1/1q3p2/3p1P1p/1pBR4/6P1/P1r4P/1K1R4 b - - 0 1
>>>Chessmaster6000
>>>4:55 35...dxc4 mate in 16
>>
>>(not tested)
>>
>>Regards,
>>M.Scheidl



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