On Thu, 2007-01-04 at 08:01 +0000, Tom Cooper wrote: > At 23:17 03/01/2007, Don wrote: > > >David, > > > >I thought of another way to put it which I think, in a way, > >defines the difference in the rule-sets. > > > >You are playing a game, and you think the opponent group > >is dead. But you are not 100 percent sure. > > > >What do you do? Chinese puts the emphasis on the actual > >truth of the situation. Japanese makes you gamble, and > >penalizes you for being wrong. It makes your opinion > >about the situation become a factor in the final result > >instead of the board position and your play leading up > >to it. > > Don, I can see that chinese rules let a player try a speculative > invasion inside his opponents territory at the end of the game > without risk, but you seem to be saying more than this. Could > you give a 5x5 example or two please? I had heard that in some > sense, chinese rules require more sophisticated understanding > for perfect play. > > It might be best to construct > the example by playing a pretend game so that each player has > played the fair number of stones.
+ + O + O O # # + + + O + O O # # + + # O O O O O # # + # + O O # # # + + # O O # + # O + + + O # # + # + + + O O O # + + # + # O O # # # # + + + O O O # # # + + Here is an example from 9x9 which illustrates a key conceptual different in the rule-sets. I admit this is a rather trivial example but it illustrates what I need to say. In the diagram, black has a chance to make a live group but only if white plays stupidly. Although this is a trivial example, we might imagine a much more interesting example where it's not so clear, or where the better player has a real chance to make this group live. In such a situation, Japanese is more about gambling skill, "can I get away with it?" The strong Japanese player is inhibited for trying to take advantage of his extra skill. The Chinese player can apply his skill to such a position without being penalized if the opponent is able to defend. Now imagine that diagram is played out more, so that there are no chances to save groups - there is a point in any game, where the game is conceptually over and a strong player can compute what the exact score should be using any unambiguous rule-set. With Chinese rules, when the game is LOGICALLY over, the ACTUAL result will be the same as the LOGICAL result. With Japanese rules the game might be LOGICALLY over but the actual OUTCOME is needlessly delayed. In other words Japanese rules gets very petty about what happens AFTER the game is LOGICALLY over - the point where good players know what the result SHOULD be. Chinese rules is more intellectual about that - it doesn't care about things that are not important - Japanese is juvenile about this. That's why in my opinion Chinese rules are superior. They give more scope for skill, once a game is logically decided it's OVER and it doesn't place juvenile emphasis on what should be non-issues. Japanese is very petty about what happens AFTER the game is logically over and to me this isn't GO, it's poker. I wold point out that this is not a virtue, it is is a necessity designed to make the scoring come out right. It wasn't designed purposely to punish you for not passing. - Don > Thanks > _______________________________________________ computer-go mailing list computer-go@computer-go.org http://www.computer-go.org/mailman/listinfo/computer-go/