Author: John Merlino
Date: 13:37:00 06/02/00
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On June 02, 2000 at 15:17:41, John Merlino wrote: >On June 02, 2000 at 08:32:31, blass uri wrote: > >>This position is from the game tal2.03-Junior6a >> >>[D]r2qr3/pb3pk1/np3b1N/2pp3Q/3P4/1PR1P1P1/P4PBP/5RK1 w - - 0 1 >> >>1)How much time does your program need to find 1.g4? >> >>2)How much time does your program need to avoid 1.g4? >> >>1.g4 is probably not the best move because of the line 1.g4 Rh8 2.Qxf7+ Kxh6 >>3.f4 Rg8 4.Qxb7 Nb4 5.g5+ Bxg5 6.fxg5+ Qxg5 7.Rf2 Raf8 8.Qd7 Rxf2 >> >>Uri > >Chessmaster 7000 on a PIII-600 prefers Nxd7 from the start. However, after about >8 minutes, it gets stuck on g4 and DOES switch to it after 18:40 (just under 80 >million positions -- depth 4/9). > >1.g4 Rh8 2.Qxf7+ Kxh6 3.f4 Rg8 4.g5+ Bxg5 5.Qxb7 Nb4 6.fxg5+ Qxg5 7.Rf2 Raf8 >with a score of 0.94 for White. The previous eval for Nxf7 was 0.11. > >At 30:34, depth 4/10, 127 million positions, g4 is still the move, but the eval >has lowered to 0.44 and the new line adds "8. e4 Nd3" at the end. > >It has now been thinking for over an hour, 225 million positions. Since I don't >want to lose this post to a random crash or power outage, I'll let you know if >the move changes. > >jm After 2:16:56, almost 515 million positions (I've been doing some WORK while all this has been going on ;-), it still wants g4 at depth 5/11. Eval is lowered to 0.33 and the line has once again been modified starting at White's 8th move. It now is: 8.Qd7 Rxf2 9.Qh3+ Kg7 10.Kxf2 Nxa2 Still plugging.... jm
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