Author: Bob Durrett
Date: 08:00:20 12/18/02
Go up one level in this thread
On December 15, 2002 at 11:28:58, Uri Blass wrote: >On December 15, 2002 at 11:06:58, Brian Richardson wrote: > >>I'm not sure how many of these positions are "positional". > >I think that almost all or all the positions are tactical(some may be found for >positional reasons but after enough time you can also see winning material). > >The positions were supposed to be tactical and the fact that a small part may be >solved for positional reason is only a disadvantage. > >position 2 is a clear tactical win and movei can show a score of more than +4 >after a long search(it is not easy to see it and it is possible that Tinker need >more than 5 minutes to see decisive win but I expect it to find it after enough >time). > >Id: ECM.949 >Fen: 1r5r/3b1pk1/3p1np1/p1qPp3/p1N1PbP1/2P2PN1/1PB1Q1K1/R3R3 b - - 0 1 >Bm: Nxg4 > > > >I suggest that you give the positions more time. > >you can give them 5 minutes per position and I expect you to find that more than >40 positions are tactical. > >Uri This is yet another definition of "positional position." I like this one better, but still have a problem with it. One might suspect that all strong engines, if given enough time, would find tactical solutions to most positions. In other words, if the time available to the engine is infinite, then eventually the engine will [???] search deep enough to find the answer [if there is one.] A more practical situation would be when the amount of time available to an engine is limited. Then the engine might not have enough time to find the "pot of gold at the end of the rainbow." Would it make sense to arbitrarily define "positional positions" as being all positions for which the engine cannot find a tactical solution in the time allotted? This would mean that a position would appear "positional" in situations where the engine had to move quickly and "tactical" in situations where the engine had time to find the tactics. There is also the logical possibility that positions may exist such that no engine would find the tactics no matter how much time was allowed for analysis. For convenience, such positions might be arbitrarily called "positional" too. I believe we need a good practical definition of "positional position." Bob D.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.