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Subject: Re: Position analysis - Fritz 8 took 8 minutes to find move!

Author: John Merlino

Date: 17:12:21 09/02/03

Go up one level in this thread


On September 02, 2003 at 10:36:55, Richard Patterson wrote:

>In this position Fritz 8 analysis took 8 minutes to find RD1-G1 but the move
>score was not much different than the other two best moves QA7-C7 or RD1xD7. The
>analysis was not much different 22 minutes with RD1-G1 still leading by .70 over
>the other moves. The analysis at 30+ minutes gave RD1-G1 (+30.38) a decisive
>advantage over moves #2 QA7-C7 (+16.06) and #3 RD1xD7 (+15.34).
>
>How does your favorite chess program see this position.
>
>Richard
>
>[d]2b5/Q2n3k/2p1p3/1p2Br2/p7/P3P2p/5P2/2KR4 w - - 0 27

Chessmaster 9000, on a P4-2.4, needs 7:34 to find Rg1, and announces Mate in 13
when it chooses it:

Time	Depth	Score	Positions	Moves
0:00	1/3	9.31	2917		27.Rxd7+ Kg6 28.Rg7+ Kh5 29.Rh7+
					Kg4 30.Qd4+ Kf3 31.Rxh3+ Kxf2
0:00	1/4	11.75	9331		27.Rxd7+ Kg6 28.Rh7 Bb7 29.Qxb7
					Rxf2 30.Qg7+ Kf5 31.Rxh3
0:00	1/5	12.20	39566		27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.e4 Kg3 32.Qxf5
0:00	1/6	12.91	91329		27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qg6+ Kf3 34.Qxc6+ Kxe3 35.Qxb5
0:00	1/7	12.91	179440		27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qg6+ Kf3 34.Qxc6+ Kxe3 35.Qxb5
0:02	1/8	13.19	537656		27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qe4 Kf2 34.f5
0:08	2/9	14.79	2023359		27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qg5+ Kf3 34.Qh5+ Kxe3 35.Qxh3+
					Ke4 36.Qh1+ Kf5 37.Qxc6
0:29	3/10	14.92	7585028		27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qg5+ Kf3 34.Qh5+ Kxe3 35.Qxh3+
					Ke4 36.Qg2+ Kf5 37.Qc2+ Kg4 38.Qxc6
1:45	4/11	15.11	28225270	27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qg5+ Kf3 34.Qh5+ Ke4 35.Qh7+
					Kf3 36.Qxh3+ Ke4 37.Bd6
7:10	5/12	15.33	116982788	27.Rxd7+ Bxd7 28.Qxd7+ Kg6 29.Qxe6+
					Kg5 30.f4+ Kg4 31.Qg6+ Kf3 32.Qxf5
					Kg3 33.Qg5+ Kf3 34.Qh5+ Kg2 35.f5
					c5 36.Qe2+ Kg1 37.Qh2+ Kf1 38.Qxh3+
					Ke2
7:34	5/12	Mate13	124074955	27.Rg1 h2 28.Bxh2 Rc5+ 29.Kb1 Bb7
					30.Qxb7 Rd5 31.Qc8 Nf6 32.Qxe6
					Rd1+ 33.Rxd1 Nd5 34.Qf7+ Kh6 35.Bf4+
					Nxf4 36.Rh1+ Kg5 37.exf4+ Kg4 38.Qh5+
					Kxf4 39.Rh4#

jm



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