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Subject: Re: Mate in 18 Unbelievable Game True Deep Thinking

Author: John Merlino

Date: 21:52:05 08/24/05

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On August 25, 2005 at 00:08:54, Vegadapirate wrote:

>White to move and mate in 18 actually white wins in next 17 moves here is the
>position
>[D] 3b3K/pp4rP/8/4Ppp1/8/BB4P1/p3p2p/1N5k w - - 0 1
>
>start your engines
>
>My shredder finds it at depth 20

CM9_R1 on a P4-2.4 announces mate in 18 in 1:13. Note that The King only shows
the first 31 moves in a PV:

Time	Depth	Score	Positions	Moves
0:00	1/3	0.01	6732		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Kxg7 h1=Q 6.Bb3+ Kc1
					7.Ba3+ Kb1 8.Nd2+ Ka1 9.h8=Q
0:00	1/4	-1.86	31994		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nb3 Kd1 5.Bf2 Rxh7+ 6.Kxh7 e1=Q
					7.Bxe1 Kxe1 8.Bxb7
0:00	1/5	-0.97	91043		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Kxg7 a1=Q 5.Nf3+ Kd1 6.h8=Q e1=Q
					7.Bb3+ Kc1 8.Nxe1 h1=Q 9.Qxh1 Qxe5+
					10.Kg6 Qxc5
0:01	1/6	0.00	223238		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Kg8
0:02	1/7	0.00	357901		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Kg8
0:04	1/8	0.00	719242		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Kg8
0:08	1/9	0.00	1594782		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Kg8
0:19	1/10	0.00	3693319		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Kg8
0:39	1/11	3.73	7681816		1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Ke8 Rh8+ 12.Kd7
					Rh7+ 13.Kxd8 Rh8+ 14.Kc7 Rh7+ 15.Kb8
					Rh8+ 16.Kxa7
1:13	2/12	Mate18	16961335	1.Bd5+ Kg1 2.Bc5+ Kf1 3.Nd2+ Ke1
					4.Nf3+ Kd1 5.Bb3+ Kc1 6.Ba3+ Kb1
					7.Nd2+ Ka1 8.Bc2 Rxh7+ 9.Kg8 Rh8+
					10.Kf7 Rh7+ 11.Ke8 Rh8+ 12.Kd7
					Rh7+ 13.Kxd8 Rh8+ 14.Kc7 Rh7+ 15.Kb8
					Rh8+ 16.Kxa7

jm

• mate in 18 was not enough how about 22 moves ahead Vegadapirate 22:09:52 08/24/05
  • Re: mate in 18 was not enough how about 22 moves ahead John Merlino 09:31:18 08/25/05
    • Re: mate in 18 was not enough how about 22 moves ahead John Merlino 09:38:07 08/25/05
    • Re: mate in 18 was not enough how about 22 moves ahead Uri Blass 09:37:46 08/25/05

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