I show they are equivalent by the attached simple example.
Case 1: A1(Black) and J1(White). Not affect Chinese scoring at all. For Japanese scoring, they cancel back each other.
Case 2: A1(Black) and E7(White). For Chinese scoring, Black gains nothing and White gains 1 point. For Japanese scoring, Black loses 1 point and White gains nothing. So, Chinese scoring is still equivalent to the Japanese scoring from the view of the scoring result.
Case 3: E7(Black) and J1(White). Likewise, for Chinese scoring, Black gains 1 point and White gains nothing. For Japanese scoring, Black gains nothing and White loses 1 point. They are still equivalent.
Cases with PASS still hold. For example,Case 4: PASS(Black) and J1(White). For Japanese scoring, Black gains nothing and White loses 1 point. For Chinese scoring, my approach gives Black 1 point to make them equivalent.
Case 5: E7(Black) and PASS(White). For Japanese scoring, both sides gain nothing. For Chinese scoring, Black gains 1 point and my approach cancel such gain by reducing Black's territory by 1.
Aja----- Original Message ----- From: "Erik van der Werf" <[email protected]>
To: <[email protected]> Sent: Tuesday, April 27, 2010 6:12 AM Subject: Re: [Computer-go] Many Faces and Japanese rules
I just checked to be sure; Steenvreter correctly passes in both examples. I'm speculating, but I think your problem is that you only adjust for the difference between Japanese and Chinese counting in the playouts. However, once consecutive passing gets into the tree you have to correct earlier. The way I think of it Japanese rules have two phases: (1) the game phase and (2) the confirmation phase. In the game phase passing first can gain a point. In the confirmation phase it can not. The confirmation phase normally starts after 2 consecutive passes. If the confirmation phase has not started yet in the tree then the entire playout can be considered a confirmation phase. Erik _______________________________________________ Computer-go mailing list [email protected]http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
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