Author: Vasik Rajlich
Date: 03:10:39 05/20/05
Go up one level in this thread
On May 20, 2005 at 04:27:30, Uri Blass wrote: >[D]8/p2knpb1/1p4p1/1Ppp2P1/P3PP2/2PKB3/4B3/8 w - - 0 33 > >The following position is from my last game in the israeli league. > >I had 20 minutes on the clock against more than 30 minutes of my opponent and >after not seeing a way to win the game I played >33.Bg4+ and offered a draw. Uri -- you need to be more patient! White is better here and can never lose. Just play something solid and let your opponent screw it up. Vas > >My opponent declined the draw and replied 33...Kc7 > >I continued 34.e5 Bf8 35.Bf3 Kd7 36.Bg4+ Kc7 37.Bf3 Kb8 38.Bg2 Kc7 and now I >claimed a draw because my 39 move force 3 time repetition. > >[D]5b2/p1k1np2/1p4p1/1PppP1P1/P4P2/2PKBB2/8/8 b - - 0 39 > >My opponent did not agree and claimed that there was no 3 time repetition. >He also claimed that he has the better position and he plans to win the game. > >He was forced to get a draw because of the repetition but when we analyzed the >game he claimed that the knight is better than the bishop and my bishop is >passive when his bishop can go to a3 after c4. > >I was surprised by this claim and I am sure that every computer have no problem >of misunderstanding that white is better. > >If I knew that my opponent thinks that he has the better position I would >continue without claiming a draw and I believe that in that case I had good >chances to win inspite of my evaluation that the position is objectively a draw. > >I thought that the reason that my opponent refused to draw is to try to win on >time and inspite of being sure that I can hold it I did not want to spend time >on lines like 39.Bf3 Kd7 40.Bg4+ Nf5 when again I did not see a way to win. > >My opponent thought to play 39...c4+ in case that I play 39.Bf3 without claiming >a draw and like the computer I think that it is bad. > >I could not prove a win for white after 39...c4+ but white can win material and >maybe also the game. > > > >Analyzing with shredder gives another idea to try to win the game without Bf3 > >39.a5 Kd7 40.a6 Bg7?(of course 40...Kc7 is better) when the sacrifice 41.Bxc5 is >probably winning > >I still could not find a win for white against correct defence and I am >interested to know if white can win. > >I give this position also to demonstrate that humans are not always superior >relative to computers in positional understanding and at least the human that I >played against him did not do tactical mistakes in the game(he has israeli >rating of 1990 that is equivalent to the same fide rating) but he totally >misunderstood the position. > >Uri
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