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Subject: Re: Some more mating problems

Author: William Bryant

Date: 11:54:09 08/17/00

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On August 17, 2000 at 00:24:57, Ed Schröder wrote:

>On August 16, 2000 at 21:02:43, Gian-Carlo Pascutto wrote:
>
>>
>>Try these 2 :

Screamer, G3, 266mhz, EGTB's off

>>
>>8/pp3K1k/2p2R2/4r1p1/6B1/2P4p/PP6/8 w - -

10/02 2935382  37.747 +327.52  Bd1 Re7+ Kxe7 h2 Bc2+ Kh8 Rh6+ Kg7 Rg6+ Kh8

>>From a Chiptest game.
>>
>>[D]3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - -

Finds the move in 2.225 seconds, but doesn't find mate in 15 minutes
6/01  105006   2.225    ++     Rxh7+

The last PV returned was:
13/00 39597622 818.092  +12.40  Rxh7+ Kxh7 Qh5+ Kg8 Rxg7+ Kxg7 Bh6+ Kh8 Bg5+ Kg8
						 Qg6+ Kh8 Bf6+ Rxf6 exf6 Qxe1+ Kxe1 Nc2+ Kf1 Ne3+
						 fxe3 Rd7 Qe8+ Kh7 Qxd7+ Ne7 Qxb7 e5 fxe7

>A few ones I like most.
>
>Ed
>
>------------------------------------------
>>[FEN "7K/2p1p1p1/2PpP1Pk/6pP/Pp4P1/8/1P1P4/8 w - - 0 1"]

25/00     13960     1.376 +327.42  a5 d5 a6 b3 a7 d4 a8=N d3 Nb6 cxb6 c7 b5 c8=N
							b4 Nd6 exd6 e7 d5 e8=N d4 Nf6 gxf6 g7 f5
							g8=N+

>[FEN "8/1p6/8/pBP4r/p3R2P/K7/3p1p1p/3k4 w - - 0 1"]

Screamer only see's a draw with this one
14/00  55198382   900.750   +0.00  Be2+ Ke1 Bd3+ Kd1 Be2+

>[FEN "4r3/p1p1pPp1/P1P1P1P1/5K2/3p2P1/7p/3P1ppr/3R1nkq w - - 0 1"]

Screamer only see's a draw with this one
Screamer does do underpromotion
23/00  57257618   900.163   +0.00  fxe8=Q d3 Qxe7

>[FEN "5n2/B3K3/2p2Np1/4k3/7P/3bN1P1/2Prn1P1/1q6 w - - 0 1"]

Finds's the right move in less than 1 second, but does not see mate in 15
minutes
15/00  40492716   614.524   +4.02  Neg4+ Kf5 Nh6+ Ke5 Nf7+ Kf5 Nd6+ Ke5 Ng4+ Kd5
							c4+ Bxc4 Ne3+ Ke5 Ndxc4+ Ke4 Nxd2+ Kd3 Nxb1
							Nh7 Kf7 g5 hxg5 Nxg5+ Kf6

>[FEN "n1QBq1k1/5p1p/5KP1/p7/8/8/8/8 w - - 0 1"]

Screamer Doesn't see this one at all

William
wbryant@ix.netcom.com




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