Back Reversi Rulebook Preview (Page 3 of 5)

Outflanking your opponent means to place your disc such that it traps one or more of your opponent's discs between another disc of your color along a horizontal, vertical or diagonal line through the board square (see Notes below).

Example: Starting with the initial game set up (Figure 1), suppose Black is to move first. They may place a disc at C4, D3, E6 or F5. Placing the disc at C4, as shown in Figure 2, Black flips over White's disc at D4 (Figure 3).

Figure 2

Figure 3

White moves next and may play C3, C5 or E3.

5. If a player cannot make a legal move, they forfeit their turn and the other player moves again (this is also known as passing a turn). Note that a player may not forfeit their turn voluntarily. If a player can make a legal move on their turn, they must do so.
6. The game ends when neither player can make a legal move. This includes when there are no more empty squares on the board or if one player has flipped over all of their opponent's discs (a situation commonly known as a wipeout).
7. The player with the most discs of their color on the board at the end of the game wins. The game is a draw if both players have the same number of discs.