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cave layout

Please provide solid gridlines for the cave puzzle, if possible.

Thomas Snyder and I have generally found dotted gridlines to be more useful for solving Cave puzzles, because it makes it easier to draw the boundary of the cave in a visible manner. May I ask why you prefer solid gridlines?

My guess is that Anuraag was solving the Cave on a computer and the dotted lines do not allow flood-filling. When I format puzzles for GMPuzzles I allow for both potential uses, but definitely on paper (the intended solving format for the Grand Prix) the dotted line is best.