From the problem cellar
Twelve men's morris problems
24 positions in three difficulties. A tick marks the ones you have solved in this browser.
Twelve men each and diagonal lines: a board that can fill to the last point.
Easy · #501–508
An easy one: the mill comes on your second turn, so look for a move that makes two threats or forces a reply you can use.
Medium · #509–516
A medium problem: three turns, and the opponent may close a mill of his own along the way. Check what each of his replies does before you commit.
Hard · #517–524
A hard problem: not a mill but the whole game, usually by leaving the opponent with two men or without a move.