Connect 5 donuts of your colour in a single line: horizontally, vertically or diagonally. This results in an immediate victory. When all the players counters have been used, and no one manages to reach this target, the player with the single largest orthogonally contiguous group of donuts wins.
There are 4 board tiles, each of size 3 x 3. These are randomly arranged to create a 6 x 6 game board. Each player gets 15 donuts, which will either be Chocolate or Vanilla.
The first player may place one donut of their colour anywhere on the board. The line in the centre of the square indicates the direction in which the next player must place their donut. Successively placed donuts must conform to the direction indicated, except where no valid position exists. In which case, that player has the freedom to place their donut in any empty plate on the board.
By inserting your donut between two of your opponent's donuts you cause their donuts to be flipped to your colour. For example: V-V --> VCV = CCC.* Note that your opponent's donuts do not need to be directly adjacent to your just-inserted donut. For example: VCC-CV --> VCCCV = CCCCC.* It is possible that the placement of one donut creates more than one insertion.
Flanking your opponent's donuts is not an insertion, and does not cause any donuts to be flipped.
(* V for Vanilla. C for Chocolat.)