Nine Men's Morris
Place your nine pieces, then move them along the lines. Three in a row is a mill and takes one of the computer's pieces. Leave it with two pieces or no move to win.
How to play Nine Men's Morris
Placing
You and the computer take turns placing nine pieces each on the empty points. Tap a point, or drag a piece from your row at the bottom. You play the blue pieces and always go first. Choose Two players to play a friend on one device: Blue and Gold take turns.
Mills
Three of your pieces in a row along a line form a mill. Each time you close one, remove a computer piece. Pieces in a mill are safe unless every computer piece is in a mill.
Moving and flying
Once all pieces are placed, move a piece along a line to a neighbouring empty point: tap it and then the point, or drag it. When you are down to three pieces, you can fly a piece to any empty point.
Winning and draws
You win when the computer has two pieces left or cannot move. The game is a draw if the same position comes up three times, if 50 moves pass without a mill, or if both sides have three pieces and nobody closes a mill in ten moves each.
Questions
Can you remove a piece that is in a mill?
Only if every one of the opponent's pieces is part of a mill. Otherwise you must take a piece that is not in a mill.
What happens if I close two mills with one move?
You still remove just one piece. That is the usual rule for Nine Men's Morris and the one used here.
What is flying in Nine Men's Morris?
When a player is down to three pieces, those pieces may jump to any empty point instead of moving along a line. It gives the weaker side a last chance to fight back.
Can you lose by being blocked?
Yes. If it is your turn in the moving phase and none of your pieces can move to an empty neighbouring point, you lose.
How strong is the computer?
Easy looks one move ahead and sometimes plays at random. Medium looks three moves ahead. Hard searches as deep as it can in about a fifth of a second.