[Retros] Exact chess? (Re: Variant PG wanted)
Noam Elkies
elkies at math.harvard.edu
Thu Jan 28 00:59:06 EST 2010
joose norri <joose_norri at hotmail.com> writes:
> I played this quite a bit with Unto Heinonen a decade ago;
> I think we agreed that checkmate and stalemate are draws.
> Isn't that more logical?
I don't think so: if one just declares that you win if your
opponent has no legal move that retains uniqueness then
checkmate and stalemate become wins automatically.
> In such positions there's no threat, and proof game chess is certainly
> direct play.
Not sure why this is relevant; the notion of a "threat" doesn't seem
all that useful in this game to begin with. One can easily play
badly enough to lose by Zugzwang even without any pressure from the
opponent, e.g. 1 Nh3 2 Rg1?, which is quite are in ordinary chess.
Also, if I'm in check then I must find a move that both gets out of
check and maintains uniqueness, else I lose -- why should it matter if
I don't even have a move that gets out of check if we ignore the
uniqueness rule?
NDE
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