Michael Mepham may have said goodbye to Sudokus which require
"Ariadne's thread" (aka trial-and-error or forking or bifurcation) to solve, but some expert sites persist with these
"unsolvable" Sudokus, in the hope that someone uncovers a hitherto unknown logical method to solve them. Could that someone be you?
沒有留言:
發佈留言