Author: Fernando Villegas
Date: 06:14:07 01/12/06
Warning: not being a programmer, anything I could say here is just wild speculation and has non intention to be taken seriously. Rybjka, I guess, is different to others top programs because, like human mind, has not only a certain stock of knowledge, but has the knowledge to know what knowledge is irrelevant facing a problem and what can and MUST be left aside of it. Probably this operates as a super module controlling which other, specific modules of the source that must or could be left aside. It is like what human brain does and certainly does in chess. When you are attacking for a mate or under a mate attack, you does not make positional calculations; you does not look for a better place for the rooks; you does not think in a better ending. You just calculate possible combinations, captures, checks. You know that positional knowledge is irrelevant in that moment and you leave it aside. You concentrate all brain power in that. On the contrary, in a leveled position after the openning, when you at a glance see that your king and the adversary king are well defended and that no side has a massive concentration of pieces around them, then you leave aside mate attack combinations, you does not lose time looking for such a thing, you concentrate in positional features to see how to continue and get an edge. After some games against Rybka I have the suspicion that Vas has developped strongly some kind of device to do that that work. It could be a reason of his superior strategic handling. Just my quarter of a penny fernando
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