You also cannot score Japanese from just the board position unless you have a prisoner count of both sides. This state has to be carried either explicitly (by a bowl full of stones) or implicitly by a complete game record.
So I suppose it's possible to have what appears to be 2 identical positions with the same side to move in a finished game and have 2 different results, a won for white and a won for black. What is to prevent someone from grabbing a few stones at the beginning of the game and sneaking them into the dish later? If I want to estimate my winning chances, am I allowed to empty out the bowls and count the stones? Or am I only allowed to estimate this by keen eyesight? Am I allowed to hide this part of the board state from my opponent? Am I required to keep a running tally in my head? Even though I've been assured that even good players don't really know who is winning in close games (which I don't entirely believe), it seems to me that it should be possible to at least calculate where you stand by looking at the board and basing this on what you know for sure. - Don On Tue, 2008-09-16 at 18:56 +0200, Robert Jasiek wrote: > David Fotland wrote: > > Japanese rules' [...] the actual counting [...] The position is preserved > > Japanese counting destroys the position by > - removal of dead stones > - filling in of (most) prisoners > - rearrangements of stones > - rearrangements of borders > - border stone colour changes > > After the removal of dead stones, these counting methods do NOT destroy > the position: > - point by point counting > - point by point half counting > - some algorithmic virtual counting like flood-filling >
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