Author: Enrique Irazoqui
Date: 08:22:27 02/27/01
Go up one level in this thread
On February 27, 2001 at 11:18:58, Sune Larsson wrote: >On February 27, 2001 at 11:02:34, Ricardo Gibert wrote: > >>On February 27, 2001 at 10:14:04, Sune Larsson wrote: >> >>> >>> [D]r7/7k/5R2/p3p3/Pp1pPp2/1PpP1Pp1/K1P3P1/8 w - - 0 1 >>> >>> >>> White to move and make it for the draw. Normal play like 1.Rf5? Kg6! >>> 2.Rxe5 Rh8! followed by Rh2 gives the full point to black. 1.Re6? makes >>> no difference after 1.-Rh8! But the pawnchain carries some hidden secrets... >>> To be honest, this is more a test of one's own limitations of the mind. >>> I think it's too difficult for any chessprogram (but who knows?. Then >>> again, it's possible to test the programs when 1/3,1/2 or 2/3 of the >>> solution is performed. A human can solve it by trial and error. If >>> normal play doesn't work, one is forced to think in new patterns... >>> >>> Sune >> >>Cute problem. Yes, it looks too difficult for computers: 1.Kb1! Kg7 (or 1...Rh8 >>2.Rf8!) 2.Rh6! Kxh6 and White has bought enough time to get his King into >>position 3.Kc1 Kg5 4.Kd1 Rh8 5.Ke2 drawing due to a stalemate theme. > > Yes, and then there is another one to check out, when black takes on g2 - > following your line - 5.-Rh2 6.Kf1 Rxg2 7.Kxg2 Kh4 8. Kg1! and black can > make no progress. Buying time instead of chopping wood...;) > > Sune Do you know MES 941? [D]3B4/1r2p3/r2p1p2/bkp1P1p1/1p1P1PPp/p1P1K2P/PPB5/8 w 1. Ba4+ Kxa4 2. b3+ Kb5 3. c4+ Kc6 4. d5+ Kd7 5. e6+ Kxd8 6. f5 * And now take a look at evals after 6.f5... :( Enrique
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