Author: Robin Smith
Date: 16:48:32 06/07/01
Go up one level in this thread
On June 07, 2001 at 19:07:32, Slater Wold wrote: >On June 07, 2001 at 12:34:56, Robin Smith wrote: > >>On June 07, 2001 at 01:59:45, Slater Wold wrote: >> >>>On June 06, 2001 at 00:49:21, Robin Smith wrote: >>> >>>>From a recently completed game in the 24th world correspondence chess >>>>championship semi-finals: >>>> >>>>[D] r1qr2k1/pb2bpp1/1p2pn1p/2p4P/3P1B2/2PB1N2/PP2QPP1/1K1R3R w - - >>>> >>>>Here the move 15.Rhg1 is very strong, as it gets the rook off the long diagonal >>>>and threatens to charge the g-pawn down the board. But computers don't often >>>>like to give up material .... in this case the h pawn and after 15.Rhg1! Nxh5 >>>>16.Bxh6! also the bishop. Can any program find 15.Rhg1? I believe it may win >>>>by force, and if not it certainly leaves black in big trouble, but all programs >>>>I tested don't find it, even over night. If that is too hard, try the position >>>>after 15.Rhg1 Nxh5. >>>> >>>>Robin Smith >>> >>> >>>Ok, play 15. Rhg1, and I play cxd4. What then? >>>Slate >> >>16.Nxd4, usually then followed by 17.g4, 18.g5 and black's king gets exposed. >>White might also need to play f4 to support the g5 push in some lines. >> >>Robin > >Interesting. g4? I thought rooks were important. :) > >15. Rhg1 cxd4 16. Nxd4 Bd6. > >And Black is up well over a pawn. > >Slate After 15. Rhg1 cxd4 16. Nxd4 Bd6 17.Bxd6 Rxd6 18.g4 how do you figure that black is up anything? In fact black is in trouble, though again the comps still have trouble seeing it. And what do you mean by you "though rooks were important", the whole idea of moving the h-rook to g1 instead of the d-rook is to get it off the long diagonal because rooks ARE important. White has not sac'ed anything in the line above and still has a very strong, probably winning, attack. That comps don't see it is the mystery. Robin
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