Author: Dan Istrate
Date: 21:43:26 12/05/98
Go up one level in this thread
The estimated rating for Legend III is 2100 and for Diamond II
is 2300. However, based on the tests that I made, the difference
between their "mate in X" programs is huge. Either the Legend III
that I have is defective, or it has a very poor mate finder program.
John Coffey posted a message ("review of Novag jasper") here
with a "mate in 3" position which Novag Jasper solved in 55 seconds.
I tried to solve it with Legend III and it came up with a solution
after 15 minutes (?!!!!). And the rating difference between Legend
and Jasper is very big (2100 vs 1400).
I need to make a test with somebody who has a Legend III (or
Avenger, the travel version). If you know somebody who has these
machines, maybe you can tell him/her to contact me.
If you want to test the positions from the Diamond's manual,
here they are:
1. White: Ka2;Qb1;Na3;Nd8;Bb8;Bf5;Pawns:e2,h2,a4,g5,d6,f6
Black: Kd5;Nc5;Nd7;Pawn:a7
White to move and mate in 4 moves. In the manual, Novag
says that Diamond II needs 40 seconds to find Bxa7 and announce
mate in 3 more moves. If Diamond is set on normal playing levels
(I presume on the infinite level), it takes the computer only
11 seconds to find e2-e4 for a "mate in 5" solution.
2. White: Ka3;Ra8;Ng8;Pawn:h6
Black: Kh8;Qh3;Be4;Bf6;Na5;Nh5;Pawns:c3,g3,c4,c5,e6,g6,h7
White to move and mate in 6 moves. Novag claims that Diamond II
needs 46 seconds to find Rb8 and mate in 6 moves. On normal playing
levels, a solution is found in a couple of hours.
I am curious to know what kind of results you get.
Dan
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