Themisto 2015

Make a 5 in a row in any color for the win!

Materials 8x8 checkerboard 28 Reversi (Othello) disks

Setup The 28 disks are placed on the border spaces of the board in an alternating pattern of black and white.

Play Decide who goes first in any convenient manner, turns then alternate.

On a turn, you must either,

1) Move a piece (black or white) any distance in a straight line, orthogonally or diagonally, without jumping over other pieces, then flipping the moved piece over and ending the move in an empty space that is adjacent (orthogonally or diagonally) to at least one other piece on the board or

2) Move a piece (following the movement rule above) from a row consisting of three or four like-colored adjacent (orthogonal or diagonal) pieces, but in doing so, you lose your next turn or

3) After moving a piece, on the same turn, you may perform a custodian Capture by having the moved piece, and another like colored piece on either side of at least one straight (orthogonal or diagonal) occupied line of opposed colored pieces (1-3 pieces if you are player one or 1 or more if player two). The trapped piece(s) are then flipped over.

Restrictions A player may not repeat the board position of the previous turn.

Object The game ends, and a win is made, when player one makes a five in a row (orthogonally or diagonally) in either color or player two a row of five or more in either color.