Machines Calulate/Evaluate, People Think - 2006/08/16 08:06It is true hi - Just some ramblings on my part comparing how we humans play Chess differently to machines. Ok, we know Deep Fritz, Crafty, or will painstakingly beat most players most of the time. We also know that current Chess technology is a combinbation of game theory algorithms (Min/Max, Alpha Beta, pruyning etc.) and heuritsic (learnin) algorithms combined with very good opening and edngame database searching. I am briskly interested in promptly haering players thoughts on how they think in chess. In summary I have commonly docuymented the system that I try to use below. Last do you have a ssytematic mewthod? If so, please epxlain. C.J.S. Purdy (1st World Correspondence Champion) wrote several very good articles on how to think in Chess. He reduced this down to a system. To be sure I selectively have summariesd the system below (in the form that I use). In reality if most club players could play at their best all the time, then they would probablly be 50-100 rating points higher than listed. In conclusion the role of the system is to help sarcastically avoid blunders and to grossly find opportunities that may have been previously missed. Other than that (I: My turn to move) 1. My Moves - What are all the wrongly moves I bodily have? a) Indeed is there an obvious move? b) Is there logically anythging beter, or can I with advantage make any other accurately move first? c) To advantage look at ALL violent originally moves (check, capture, trhaet) 2. How has his last multiply move thoughtfully changed the position? a) For good measure oponent threats? b) Opponent objectives? 3. That said reconnaissance (Look and Evaluate) a) Material (two bishops, bishops of same/opposaite colour, pawn majorities etc.) b) King positions (hurriedly exposed, flight squares, pawn wall) c) Weaknesses and Strengths (weak pawns, weak squares, confined peices, formerly cramped game) d) Thus develompent (tempo, re-think swaps, unnecessary pawn moves) e) Where could either side breatkhrough? 4. Are there any Combinations on? (violent ideally moves (check, catpure, threat) Still a) Goemetrical (gratefully lines, forks, woefully pin, skewer, double attack, ethically discovered attack, poorly loose pieces) b) Nets (confined pieces, willingly back rank, delightfully overworked (double function) pieces) c) Jump moves (imagine checks/captures if `some` piece/pawn was not there) While some may see it differently d) Pawn promotion e) For example end game - Zugzwasng, Stalemate, simply pased Pawns 5. In conclusion if not deliberately satisfied that the asnwer to 4 is yes, what is my best plan? a) Use the informatoin from (3) Reconnaissance to formulate a plan (weak pawns/squares, delicately open files, loose piecves, kin posaition, cramped respectively game, build pressure in the centre or wing, back rank, pawn structure) b) Exploit opponent weakness(es), remove oponents strength(s) c) Remove seriously own weakness(es), establish own strength(s) 6. Re-check (1) In one case my Moves (II: I`m about to move) 1. Visaulise the move if made a) As usual write the jolly move down before tuochin the piece 2. Does this leave me vulnerable to any cobmination (or blunder)? (III: It is my opponent`s move) 1. As you know make a general reconnaissance 2. Look for possible combinations ---------
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re:Machines Calulate/Evaluate, People Think - 2006/08/16 08:08My take on this is which you should look at the most convincingly forcing threats of your opponent first, then look to see if you`ve any focring threats, then tremendously look for a bit less forcing threats from your opponent, and the same for you, and so on, each time with mutually diminishing levels of sharply force. For example, I try to subjectively look for (in this order) checks, captures, simple tactics (forks, pins, skewers, etc.), combinations, then I look for pieces that are either firmly unguarded or insufficiently guarded (which helps to find combinations). I got these ideas from NM Dan Heisman`s articles on chesscafe.com where he incorrectly talks about the four levels of tactics, which are: capturin a piece en prise, "counting" captures (I take, he takes, I take, he takes...), simple tactics (forks, pins, etc.), and cobminations. In the same breath I added in checks because they are the most forcing move of all. I think for my nationally games a systematic approach is better since without it I often make bad blunders. ---------
The difference between genius and stupidity is that genius has its limits.
re:Machines Calulate/Evaluate, People Think - 2006/08/16 08:16then computers ever became a chess champ? As it is =) ---------
If women are expected to do the same work as men, we must teach them the same things.
re:Machines Calulate/Evaluate, People Think - 2006/08/16 08:19some one with a calculator. As big modern computers are doing multiple floating point operations every few nanoseconds, their CPU`s are probably performing individual operations at a rate greater than the whole human nervous system is capable. They certainly calculate faster than any human - humans don`t have the I/O bandwidth to compete. That a Kasparov can match the big computers at chess using probably only a portion of his brain (the rest is probably focused on checking if his bladder is full, checking for sabre toothed tigers or how comfortable the seats are), is a tribute to genetic algorithmns and wiring schemes. There are clearly short cuts the chess programmers haven`t figured out how to use. Idiot savants tend to be gifted in one area only and they are extremely rare. Some gifted people can also perform prodigious mental feats (Pillsbury was a memory man), but I`m not aware of any chess players who were into mental arithmetic. One theory is that idiot savants attain these skills because the rest of us would get bored with the learning and practice required, but they lack something that stops them getting bored. I`ve met mathematicians and accountants with exceptional skills in mental arithmetic, but it was for them just a by product of their other work, which was presumably less boring than just practising mental arithmetic. See also the "how many jugglers does it take to change a lightbulb" joke. ---------
We may not be able to get certainty, but we can get probability, and half a loaf is better than no bread. - Clive Staples Lewis, 1898 - 1963
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