Author: stuart taylor
Date: 18:10:54 06/25/02
Go up one level in this thread
On June 25, 2002 at 01:01:21, martin fierz wrote: >On June 24, 2002 at 21:21:22, stuart taylor wrote: > >>On June 24, 2002 at 17:31:47, Terry Ripple wrote: >> >>>On June 24, 2002 at 16:09:44, martin fierz wrote: >>> >>>>On June 24, 2002 at 11:24:37, stuart taylor wrote: >>>> >>>>> >>>>>> >>>>>>=============================== >>>>>> >>>>>>[d]r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - - bm Bxg6; >>>>>>Rebel Century 4 : 38 seconds (11 ply) >>>>>>Rebel XP beta 1.01 : 21 seconds (11 ply) >>>>>> >>>>> >>>>>I like this position quite alot, because it's so easy (I mean tangible) for a >>>>>reasonably intelligent human to see clearly. >>>>>This is an example of a position which I always wanted to know if anyone of >>>>>2200 elo would ever miss. >>>> >>>>sure, i (2200) can well imagine missing that in a game. if you tell me white to >>>>move and win, i will probably find it easily. but if somehow my tactical >>>>instinct doesn't tell me i should look for something, i could miss this >>>>combination - like lots of others... i have seen better players miss easier >>>>combinations than this! doesn't happen a lot, but it does happen. >>>> >>>>aloha >>>> martin >>>------------ >>>Your exactly correct! It's much easier to find a combination to a problem when >>>you are told there is a winning move in a particular position, but the real test >>>is if you will see the combination in a real game of chess! Look at how many >>>times Grandmasters miss a better move than what they made or even a winning move >>>that they missed. In an over the board game you can't be always searching for >>>deep complex combinations on each and every move or you will certainly lose on >>>time, and so with experience you get a certain feel that there is possibly a >>>combination when the pieces are positioned in a particular pattern and then you >>>spend some extra time on this position. >>> >>>Regards, >>> Terry >>Well probably there are many things which hardly any much weaker player would >>ever miss, and I would often miss, but this I just can't imagine ever missing in >>a 30 min/game if there is atleast 10 minutes left on the clock. It is exactly my >>mentality to see this. > >well, i don't know what your rating is, but, regardless of that, i can't imagine >that you would always see such stuff (no offense intended!). in my own failures >to see simple tactics i have found some patterns. for example, i often fall into >a deep think in a position, and calculate a long variation. then, i play it out >rather fast. i try to think again after my opponent has moved, but hey, i >already calculated it and if i only have 10 minutes left on the clock for the >whole game, i might feel pressed to move fast. so i play the move i had >calculated 3 moves before, and suddenly see that there was something else... >another typical mistake is that you see a good variation and stop looking for >more. in your example, i could imagine sitting at the board and thinking: > >[d]r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - - bm Bxg6; > >hmm, this is looking good... do i have a safe continuation? >lets see 1.Re7+ Rxe7 2.de7 Kxe7 3.Rxc5 (menacing cb5 with a comfortable >advantage), so bc4 4.Rc7+, now if K moves 5.Rxh7, so 4...Bd7 instead 5. Ba4 Rd8 >6. Rxa7, hmm, black might free himself with Ke6. so back to 4. Rxc4, that would >menace Rxf4 and Rc7+, ok, so i'm just a pawn up. hey, only ten minutes left, but >i get an ending with a pawn more - let's do it. >BTW, another continuation you might look at in that position is 1. Bd1 with the >menace Bg4+. that looks very dangerous for black too... > >aloha > martin I in fact hadn't yet noticed that Bg6 was the given move, but I immeadiately saw that if recaptured with Pawn, it frees the h-p and looks like it can queen unhindered, after R-7 etc. and if Bishop is not taken, it also looks no good for Black. So Bg6 P:B then, R-e7 and black seems forced to take, RXR and then after PXR + KXP is obvious, and then the RP can queen unhindered in 2 more moves! Can black stop it? NO! but YES!!! just move out the bishop and the rook covers the back rank in time. Oh No! Well, if Whites QR went to Q8, and the King took it, then the there would not be enough time to clear the line for the QR to stop the White Pawn. Ah! so can that idea be used? YES!!! it pins the bishop if it is not taken, AND that bishop cannot protect the queening square either. So that then is the whole line. I think it is easy to see, because it is all so close to imagine that by decoying Blacks RP, whites RP can go forward rather easily. Anyway, I have now given out my exact psyche which went on in my mind before I noticed that Bg6 was in fact the next intended move. Of course, Uri Blass might be right too. On would have to work out if it is all worth it for queening a pawn. I think people should more often try to write out an ones entire thought proccesses. But I don't know in which forum though. CCC or CTF. S.Taylor
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