I was thinking about the ko rule for frisbee ko, and realised it leads to problems.
1. Black takes a ko, White tries to make a ko threat, but accidentally retakes the ko. What should happen? 2. Black takes a ko. White tries to make a ko threat, but fails to make a valid move. Black tries to make connect the ko, but fails to make a valid move. May White now (try to) retake the ko? The solution is to get rid of all ko rules. You don't need them. Nick On 12 November 2015 at 11:19, Álvaro Begué <alvaro.be...@gmail.com> wrote: > Normalizing the probabilities and re-throwing the frisbee until it lands > in a valid move are equivalent, of course. > > > > On Thu, Nov 12, 2015 at 5:01 AM, David Peters <rodje...@web.de> wrote: > >> To keep changes to the protocol and number of parameters low, wouldn't it >> be a possibility to consider multiple 'throws' of a frisbee? >> >> So if the engine decides to play a move you have the described >> arrangement of hitting adjactent fields with probability eps. If this >> results in a move outside the board or an illegal move, you just repeat >> until you get a legal move. This could even mean, that you could even use >> an existing engine without change. You just add the additional step >> generating the random noise on the moves. >> >> Or is this orthogonal to the envisioned game? >> >> Best regards, >> David Peters >> >> *Gesendet:* Donnerstag, 12. November 2015 um 10:24 Uhr >> *Von:* "Darren Cook" <dar...@dcook.org> >> *An:* computer-go@computer-go.org >> *Betreff:* Re: [Computer-go] Frisbee Go Simulation >> > If one or two of these cells are outside the board the >> > move will count as a pass. If the landing cell is occupied by another >> > stone the move is also counted as a pass. Illegal moves are also counted >> > as pass moves. >> >> Alternatively, the probability could be adjusted for the number of legal >> moves. (E.g. taking the easy example of (1,1) on an empty board,and eps >> of 0.2, you'd adjust (1,1), (2,1) and (1,2) to each be 1/3 probability). >> >> This does away with the involuntary pass concept. (But if you keep it, I >> agree with John Tromp that it is just a wasted move, not able to cause >> early game termination.) >> >> Darren >> >> _______________________________________________ >> Computer-go mailing list >> Computer-go@computer-go.org >> http://computer-go.org/mailman/listinfo/computer-go >> >> _______________________________________________ >> Computer-go mailing list >> Computer-go@computer-go.org >> http://computer-go.org/mailman/listinfo/computer-go >> > > > _______________________________________________ > Computer-go mailing list > Computer-go@computer-go.org > http://computer-go.org/mailman/listinfo/computer-go > -- Nick Wedd mapr...@gmail.com
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