Author: Uri Blass
Date: 01:43:34 08/30/00
Go up one level in this thread
On August 30, 2000 at 03:19:03, Uri Blass wrote: >On August 30, 2000 at 00:25:18, kurt wrote: > >>On August 29, 2000 at 23:46:23, Robert Hyatt wrote: >> >>>On August 29, 2000 at 23:37:34, kurt wrote: >>> >>>>On August 29, 2000 at 20:56:08, stuart taylor wrote: >>>> >>>>>On August 29, 2000 at 13:58:52, Graham Laight wrote: >>>>> >>>>> >>>>>>What Fritz did here is the same as it did to 2 other opponents in London - >>>>>>speculative sacrifice. >>>>>> >>>>>>It gave away its knight to expose the black king. >>>>>> >>>>>>At first, it's eval was good. After a few moves, its eval went negative. >>>>>>Crafty's eval remained between +1 and +2 for a long time. However, the >>>>>>positional strengths it had created eventually swung the game back in its >>>>>>favour. >>>>> >>>>> Was this done by some new feature? If so, which? >>>>>Or was it something not quite intended, or best, but happened to work out good >>>>>anyway, and -by the way- pretty? >>>>>> >>>>>>I think if Chris Whittington had got CS-Tal doing these sacs, he would have been >>>>>>shouting it from the rooftops! >>>>>> >>>>>>-g >>>>>If he did it 2-3 years ago, why not? >>>>>But does this mean that Fritz has caught up with CSTAL but more sound at the >>>>>same time? (no comparison, of course - when beauty and truth agree). >>>>>S.Taylor >>>>> >>>>>Well..beauty or hard work from fritzes book team. >>>>> lets look at the position after Craftys move 16.a3???? >>>>>this move invites black to play b4 ripping whites king to pieces. >>>>>Crafty had no defence after allowing 16..h5!! (Supper GM Move} >>>>>Crafty was let into a position with no threads to detect. >>>>>It faces a minjority pawn attack at his queen side,where the 2 nights >>>>>are no match for 1rook,2bishops,1queen plus to pawns to give away. >>>>>Human players would see that and take appropriate steps. >>>>>Craftys engine should not be guided into such positions until its >>>>>knowledge allows it cope addequately wiht such positions. >>>>> >>>>>congratulations "Fritz Team" for move 16...h5! Good work! >>>>>Best regards , Kurt Widmann >>>>> >>>>> >>> >>> >>>Go to the position where Crafty played Nde2 (move 21) and try >>>Nxe6 instead. (suggested by Uri). I have played thru this a good >>>bit and it looks (to me) like black is busted. >>> >>>Correct,21.Ne6 Be6 22.Nd5 (Nc7)Qh2 23.Rg2 Qd6 24.Nf4 Qe5 looks ok for >> black. It should be easy for crafty to find its way-- faster than I can. > >After 21.Nxe6 Be6 22.Nd5 Qh2 Crafty wants to play 23.e5 and Fritz6light failed >low in this position. > >Time control 6 hours/60 moves. >players Crafty17.11 against fritz6light. >Hardware PIII450 > >Game started at move 22 of black when Fritz6light took the pawn h2 that is not >the best move based on longer analysis of other programs. > >Uri It seems that Crafty is winning Fritz6light. Here are the moves(with evaluations) that I copied from the screen after the forced 21...Bxe6 and 22.Nd5 22...Qxh2 0.03/13 23.e5 1.18/11 Qxe5 1.62/13 24.Rg5 1.26/12 Qd6 2.53/14 25.Nf4 3.46/12 Qb6 2.59/13 And now Crafty very happy when the evaluation for 26.Nxe6 after finidhing iteration 10 is +5.62 and if failed high at depth 11(6.02 pawns advantage evaluation right now) Can Fritz6b play better? Uri
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