tye,
Freecell is only a moderate challenge but you can almost always win there.

Having been interested in this in the past, I did a bit of research. Comments here indicate that there is only 1 game in the 32K on Windows that is unsolveable though you can get 2 more using an easter egg. Unfortunately, this proof doesn't list the total number of impossible games.

As for using puzzles to get to sleep - I am very envious.

Cheers - L~R

In reply to Re^2: I've played solitaire with physical cards within the last: (mindless and hopeless) by Limbic~Region
in thread I've played solitaire with physical cards within the last: by ybiC

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