Canfield is a distinct game in which you have to remove a single hidden pile. I have adapted the rule to drop one at a time, which gives you a good chance of solving the game.

All stacks wrap around. The cascades build descending in red black. The foundations ascending in suit. The last open card of the Canfield cascade drops to empty cascades or can be used anywhere it fits. You can recycle the cards 9 time (that is basically unlimited).

The original drop three rule is very hard, as it makes some cards unreachable (e.g. card 1 and 2 can never be played). You can try the rule by activating it in the info window.

Good Luck!