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Subject: Re: The usefull-ness of PVS

Author: Ed Trice

Date: 10:09:36 01/13/04

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Hello Michel,


>
>Opening position Gothic Chess:
>rnbqckabnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNBQCKABNR w KQkq -
>
>with PVS
>
>6    190    261471    -10  b1c3 b8c6 i1h3 i8h6 e2e4 e7e5
>7   1192   1889545     18  b1c3 b8c6 i1h3 i8h6 e2e4 e7e5 f2f4
>
>boostup of 24.3%
>
Here is what I get...

6 plies ,0 seconds, 48439 nodes, d4 d5 Nh3 Bg4 Bg5 Nh6
7 plies ,1 second, 156185 nodes, d4 Nh6 Af3 g6 Nh3 Nf5 c3
8 plies ,5 seconds, 600037 nodes, d4 g6 Nc3 Nh6 Bg5 Ni4 Bf4 Bf6
9 plies, 21 seconds, 2278608 nodes, d3 g6 Nc3 Nh6 Af3 Nc6 Nh3 Bd4 Bg5

The move 1. d3 looks funny to chess players, but in Gothic Chess with a wider
board, ...b6 and ...Ba6+ can be nasty if you have already pushed your e-pawn and
played d4 as well, so 1. d3 is a countermeasure.



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