[computer-go] Interesting problem

[Mark Boon]

On 31-dec-06, at 15:34, David Fotland wrote:

> A strong chinese player using chinese rules will pick up a point or  
> two
> during the dame filling stage when playing a strong japanese  
> player. The
> Chiense player will choose earlier moves that gain a later dame  
> point that
> the japanese player will think have no benefit over other moves.

I'm rather late to the discussion, having been on vacation, but the  
above seems strange. Choosing a move that will gain a later dame  
point is equivalent to making a point. Therefore by definition the  
move the chinese player made was not a dame point.

As long as both players fill in dame, the Chinese player will never  
gain a point. The only case where I've seen strong Chinese players  
gain a point very late in the game against other strong players is by  
winning the last half-point ko but instead of filling it he fills  
another dame-point. Provided he has many more ko-threats so he can  
wait filling the ko until all dame are filled he gains either zero or  
two points (depending on whether the number of remaining dame was  
even or uneven.).

Mark

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