Author: Alois Ganter
Date: 00:46:36 07/20/99
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On July 19, 1999 at 15:37:53, Christoph Fieberg wrote: >A very nice feature under Fritz 5.32 is the possibility to play whole >tournaments automatically. I found out that you can easily achieve to play >theme-tournaments. Just play the moves until the desired position is reached. >Save the game. Create a new opening book. Copy the game into your empty book. >Let all engines play with this book. Ready! > >Meanwhile I played 40 different theme tournaments with very interesting results. >My latest idea was to play odds games (I hope this is the right expression) as >theme-tournaments. White gives a pawn, a knight, a bishop, a rook or even a >queen. With knight moves you can remove a piece and return to the opening >position. That is then the basis for your tournament book. (Sometimes it is >diffucult. You need for example 10 moves to remove the a-pawn.) > >I played with the following 10 engines: Fritz 5.32 (2568), Fritz 5.00 (2562), >Fritz 3.10 (2492), Fritz 4.01 (2482), Hiarcs 6.0 (2432), Junior 4.6 (2432), >Crafty 16.6 (2372), Fritz 1.20 (2285), Doctor? 3.0 (2189), EXchess 2.51 (2101) >on a pentium 166 Mhz, 2 MB Hash, 5 minutes blitz. > >After 15 tournaments I got the following results: >White gives scores Elo handicap >a-pawn: 46% 30 >b-pawn: 39% 80 >c-pawn: 37% 95 >d-pawn: 40% 70 >e-pawn: 42% 60 >f-pawn: 37% 95 >g-pawn: 40% 70 >h-pawn: 41% 60 >b-knight: 13% 335 >g-knight: 19% 250 >c-bishop: 16% 290 >f-bishop: 11,1% 360 >a-rook: 10,6% 370 >h-rook: 9% 395 >queen: 2% 660 > >The table means that for example when white gave the g-knight the score was 19% >(in 90 games the result was 13-8-69). This is a handicap of about 250 points >meaning that a weaker engine like Fritz 1.20 could match an engine like Fritz >5.32 (in fact the game Fritz 5.32 without g-knight - Fritz 1.20 was a draw). It >would be interesting to see whether the handicap values would be also valid for >other engines or even humans. > >Fritz 5.32 was the overall winner with 187.5 / 270 ahead of Fritz 5.00 with 181 >/ 270. > >Here are the best games from each tournament where white gives a piece. Stunning >and fascinating! >Plus the shortest game from all theme tournaments I played. > >Regards, >Christoph Fieberg > A valuable experiment. It seems that a centipawn is worth an elo point? Alois
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