Author: Uri Blass
Date: 10:40:11 04/24/01
Go up one level in this thread
On April 24, 2001 at 12:46:32, Dann Corbit wrote: >On April 24, 2001 at 12:44:15, Dann Corbit wrote: > >>On April 24, 2001 at 12:39:48, James T. Walker wrote: >> >>>On April 24, 2001 at 11:22:12, leonid wrote: >>> >>>>Hi! >>>> >>>>Sometime we would like to solve one mate that look like heavy but is in reality >>>>short and easy. The next one is just one of this nature. >>>> >>>>[D]4k3/1Q5Q/2q2q2/1qnqqnq1/1Qqbbq1Q/3NBN2/1Q1NBN1Q/1r1RKR1r b - - >>>> >>>>Please indicate your result. >>>> >>>>Thanks, >>>>Leonid. >>> >>>Here is Gambit Tiger 2.0 running in the background on Athlon 900. >>> >>>00:00:00.4 27.10 4 108123 Nxd3+ Nxd3 Rxd1+ Bxd1 Qxe3+ Be2 Qxh4+ Q2xh4 Rxf1+ >>>00:00:00.8 26.88 4 181424 Nxd3+ Nxd3 Rxd1+ Bxd1 Qxe3+ Be2 Qxh4+ Q2xh4 Qxh4+ Nxh4 >>>Rxf1+ Kxf1 Qbxb7 >>>00:00:03.5 27.78 5 819821 Nxd3+ >>>00:00:05.1 27.80 5 1277486 Nxd3+ Nxd3 Rxd1+ Bxd1 Qxe3+ Be2 Qxh4+ Q7xh4 Rxh2 Nxc4 >>>Qbxb7 Qxb7 Qxb7 >>>00:00:11.3 28.70 6 2541853 Nxd3+ >>>00:00:18.1 30.38 6 4257057 Nxd3+ Nxd3 Rxd1+ Kxd1 Nxe3+ Ke1 Qgxh4+ Q7xh4 Q6xh4+ >>>Nxh4 Qg3+ Qf2 Qxf2+ Kxf2 >>>00:00:34.9 31.28 7 7808978 Nxd3+ >>>00:00:39.5 41.49 7 9317928 Nxd3+ Nxd3 Rxd1+ Kxd1 Nxe3+ Ke1 Qgxh4+ Q7xh4 Q6xh4+ >>>Nxh4 Qg3+ Qf2 Qxf2+ Kxf2 >>>00:00:44.1 42.39 8 10939333 Nxd3+ >>>00:01:22.6 Mate in 6 8 23785457 Nxd3+ Nxd3 Qgxh4+ Q7xh4 Q6xh4+ Nxh4 Qg3+ Bf2 >>>Bxf2+ Qxf2 Qxf2+ Kxf2 Qg3# >> >>I think probably mate in 6 is wrong. I have never seen chest make a mistake. >>Chess Tiger may not try every foolish escape route to avoid mate in 6 (e.g. >>throw away all of your material just to stay alive longer). >> >>Chest can write the refutation table, but with 6-7 moves (depending on who you >>ask) it may take quite a bit of space to write it. > >Hmmm... >1. Nxd3+ Nxd3 2. Qgxh4+ Q7xh4 3. Q6xh4+ Nxh4 4. Qg3+ Bf2 >5. Bxf2+ Qxf2 6. Qxf2+ Kxf2 [*cough* 7] Qg3# > >Some creative counting is going on somewhere... It is known that Tiger does not count the first move and when it says mate in 6 it means the same thing that other programs mean when they say mate in 7. I do not see it as a problem because it is easy to translate the score to the right score and you only need to add 1(I know that when chessmaster6000 gives a scoreof 100-0.01x it means mate in x and again I do not see a problem because it is easy to translate the score to the right score.) Uri
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