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Subject: Re: Testposition - The Arrow's Point

Author: Mogens Larsen

Date: 15:22:07 03/06/01

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On March 06, 2001 at 06:55:28, Sune Larsson wrote:

>
>  [D]k4B1b/p6P/Kp6/1P3P2/4P3/R2P4/2P2p2/6n1 w - - 0 1
>
>  Larsen,P 1932
>
>  The name of the author sure gives associations... But it's a common name
>  and the initial + year tells us that it couldn't be this Larsen nor that
>  Larsen...;) This one carries an indian theme. White has a nice and sharp
>  arrow, formed by the pawns c2,d3,e4,f5,h7. On the other hand he's facing
>  defeat since the black f2 pawn is about to promote. Looks like there is
>  no decent way to stop this runner. But the arrow carries some poison and
>  with an intriguing manouvre white is aiming for peace. And succeeds...
>
>
>  Test: White moves for the draw. Fire off your arrow and show us your
>        peace evals! The smoke signals are further down. ;)

The result after a long think.

Engine: Gandalf 4.32h
by Steen Suurballe
  7.03	 0:00 	-2.91 	1.c4 f1Q 2.c5 Qh3 3.c6 Qxh7 4.Bd6 (54.790) 136.9
  8.01	 0:00 	-3.39 	1.c4 f1Q 2.c5 Qh3 3.c6 Qxh7 4.Bd6 Nf3 (108.577) 155.1
  8.02	 0:00 	-3.37++ 	1.Ra1 (109.920) 157.0
  8.02	 0:00 	-3.12 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 f1Q 5.h8Q Qxf5
(117.583) 146.9
  8.07	 0:01 	-3.10++ 	1.Ra4 (174.630) 158.7
  8.07	 0:01 	-3.07 	1.Ra4 f1Q 2.Bd6 Qe1 3.c4 Qh4 4.e5 Qxh7 (191.216) 159.3
  9.01	 0:01 	-3.58-- 	1.Ra4 f1Q 2.Bd6 Qe1 3.c4 Qh4 4.e5 Qxh7 (280.868) 175.5
  9.01	 0:01 	-3.50 	1.Ra4 f1Q 2.Bd6 Qd1 3.Ba3 Qe1 4.c4 Qc3 5.Bb4 Qxd3 (315.198)
175.1
  9.04	 0:01 	-3.48++ 	1.c4 (357.469) 178.7
  9.04	 0:02 	-3.44 	1.c4 f1Q 2.c5 Qh3 3.cxb6 Qxh7 4.Ka5 Bb2 5.Rb3 (438.280)
175.3
 10.01	 0:04 	-4.06-- 	1.c4 f1Q 2.c5 Qh3 3.cxb6 Qxh7 4.Ka5 Bb2 5.Rb3 (808.675)
175.7
 10.01	 0:05 	-4.19 	1.c4 f1Q 2.c5 Qc1 3.Ra4 bxc5 4.Ra5 Qc3 5.Bd6 Nf3
(1.050.678) 175.1
 10.03	 0:06 	-4.17++ 	1.Ra4 (1.185.144) 179.5
 10.03	 0:07 	-4.17 	1.c4 f1Q 2.c5 Qc1 3.Ra4 bxc5 4.Ra5 Qc3 5.Bd6 Nf3
(1.285.901) 178.5
 11.01	 0:12 	-4.80 	1.c4 f1Q 2.c5 Qc1 3.Ra4 Qc3 4.d4 Qc2 5.Ra3 Qxe4 6.d5 Qxf5
(2.255.047) 180.4
 11.02	 0:12 	-4.78++ 	1.Ra4 (2.255.724) 180.4
 11.02	 0:13 	-4.78 	1.c4 f1Q 2.c5 Qc1 3.Ra4 Qc3 4.d4 Qc2 5.Ra3 Qxe4 6.d5 Qxf5
(2.524.114) 181.5
 12.01	 0:24 	-5.44 	1.c4 f1Q 2.c5 Qc1 3.Ra4 Qc3 4.d4 Qb3 5.Ra1 Bxd4 6.h8Q Bxh8
(4.464.877) 182.2
 13.01	 1:13 	-6.19 	1.c4 f1Q 2.c5 Qc1 3.Ra4 Qc3 4.d4 Qb3 5.Ra1 Qf7 6.Be7 Qxe7
7.c6 Bxd4 8.h8Q+ Bxh8 9.Rxg1 Qxe4 (13.309.288) 181.5
 14.01	 4:01 	-6.41 	1.c4 f1Q 2.c5 Qc1 3.Ra4 Qc3 4.d4 Qb3 5.Ra1 Qf7 6.Be7 Qe8
7.Bd8 Qxd8 (45.397.211) 187.9
 14.12	 6:09 	-6.39++ 	1.Ra1 (69.352.167) 187.5
 14.12	 6:09 	-5.20++ 	1.Ra1 (69.442.556) 187.6
 14.01	 6:10 	-4.22++ 	1.Ra1 (69.567.265) 187.8
 14.01	 6:15 	-2.27++ 	1.Ra1 (70.632.395) 188.0
 14.01	 6:16 	-1.53 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Bb8
7.Qh1+ Qf3 8.Qxf3+ Nxf3 9.f7 Nd4 (70.874.773) 188.1
 15.01	 6:21 	-2.14 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Bb8
7.Qh1+ Qf3 8.Qxf3+ Nxf3 9.Bb4 Be5 (72.031.735) 188.5
 16.01	 6:48 	-2.08 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Bb8
7.Qh1+ Qf3 8.Qxf3+ Nxf3 9.Ba3 Ng5 10.Bb2 (77.262.858) 188.9
 17.01	 7:19 	-2.01 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Bb8
7.Qh1+ Qf3 8.Qxf3+ Nxf3 9.Bh6 Nd4 10.Be3 Be5 11.Bxd4 Bxd4 (83.594.884) 190.1
 18.01	 8:39 	-1.56++ 	1.Ra1 (99.574.724) 191.8
 18.01	 8:48 	-1.13++ 	1.Ra1 (101.764.316) 192.5
 18.01	 9:07 	-0.54 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Bb8
7.Qh1+ Qf3 8.Qxf3+ Nxf3 9.f7 Bf4 10.Bd6 Bh6 11.f8Q+ Bxf8 12.Bxf8 Nd4 13.Bd6
(105.949.188) 193.4
 19.01	14:52 	-0.52 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Qh3
7.Bg7+ Qxh8 8.Bxh8 Ne2 9.f7 Bd6 10.Bg7 Nc1 11.f8Q+ Bxf8 12.Bxf8 Nd3
(169.230.369) 189.6
 20.01	22:24 	-0.72 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Qh3
7.Bg7+ Qxh8 8.Bxh8 Nf3 9.f7 Bd6 10.Bg7 Ng5 11.f8Q+ Bxf8 (255.252.538) 189.9
 21.01	42:35 	-0.51 	1.Ra1 Bxa1 2.c3 Bxc3 3.d4 Bxd4 4.e5 Bxe5 5.f6 f1Q 6.h8Q Qh3
7.Qxh3 Nxh3 8.Bd6 Bd4 9.Bb8 Nf4 10.Bxf4 Bxf6 11.Bd6 Bg7 (483.421.943) 21.1

Regards,
Larsen

> Larsen,P
> 1932
>
> 1.Ra1! Bxa1 2.c3! Bxc3 3.d4! Bxd4 4.e5! Bxe5 5.f6! Bxf6 6.Bg7 Bxg7 7.h8Q+ Bxh8
> ½-½



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