Author: Dirk Frickenschmidt
Date: 13:56:52 09/17/98
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On September 17, 1998 at 14:38:52, James Robertson wrote: Hi James, thanks for posting. So at least I guessed right *which* program might be even faster than Junior in this position. ;-) De Konings porgram versions are terribly good in judging mate and king attack dangers... Kind regards from Dirk >On September 17, 1998 at 06:12:56, Dirk Frickenschmidt wrote: > >>Here's one of the test positions where I was surprised about Junior5's tactical >>strength. >> >>Fritz5 blundered this position standing well but accepting an exchange sacrifice >>leading to a black mate attack. And Fritz normally does *very* well in finding >>mate threats. Other programs like Mchess 7.1 and Rebel9 also have problems with >>this positions, as is mentioned below. I guess this could count for most >>programs - with the possible exception of de Konings programs guessed again, >>perhaps also some Kittinger prg - , so please test and show me I was wrong... >>;-) >> >>Junior5 had the best time of soving this problem by far from the four programs I >>tested so far. >> >>Fritz5 - Golubev,M [E98] >>Sparkassen open rapid bad tactical move >>[DF] >> >>1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.0-0 Nc6 8.d5 Ne7 9.Ne1 >>c5 10.dxc6 bxc6 11.b4 d5 12.Bg5 d4 13.Bxf6 Bxf6 14.Na4 Bg7 15.Nc5 h5 16.f4 exf4 >>17.Ned3 h4 18.Rxf4 a5 19.b5 cxb5 20.cxb5 a4 21.Rb1 Bh6 22.Rf1 Be3+ 23.Kh1 f5 >>24.Bf3 fxe4 25.Bxe4 Nf5 26.Bxa8?? [This is the Fritz5 blunder losing the game. >>Mchess 7.1 sees problems in ply 8 after about 5' and begins dropping from +5.02 >>down to +2.10, considering g4 as alternative and finally switching to ot after >>about 15'. Rebel9 smells "something" after 1'17, dropping from +6.23 to 4.09 in >>ply 9, but needs ply 11 and about 20' to evaluate even less with +0.63, still >>not finding another move within 30'.} [But Junior5 sees the mess already after >>1'51 on 200MMX-32Mb Hash and switches to 26.g4 with a white winning position] >>26...Ng3+ 27.hxg3 hxg3 28.Rxf8+ Qxf8 29.Bd5+ Kh8 30.Qh5+ 0-1 >> >>Kind regards >>from Dirk >> >> >>P.S. I was not able to continue my Junior5 tournament testgames for some days >>for a - perhaps from your view - funny reason: >>My parents in law visit us for some days and the second computer, being used for >>non-chess purposes (my two sons playing and one of them beginning to program) >>during the day, is in the room where they sleep. >>Of course their healthy sleep, undisturbed by computer cooler sounds, is *much* >>more important to me than any game of chess ever will be! :-) >> >>So I ask for your understanding and will continue the tournament with the first >>game against Fritz5 next night probably. > >Chessmaster 5500 does pretty well on my P233: >Move Depth Time Score >e4xa8 6 1 sec 6.39 >e4xa8 7 11 sec 0.99 >d3-g5 7 50 sec 1.69 >g2-g4 7 58 sec 3.70 > >James
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