Tiffany Antopolski
tiffany.antpolski@gmail.com 2012
Michael Hill
mdhillca@gmail.com
Stephen Pearce
me@stevepdp.org 2015
Arnaud Bonatti
arnaud.bonatti@gmail.com 2020

Creative Commons DelaLika 3.0

Daniel Nylander
po@danielnylander.se 2007, 2009
Erik Sköldås
erik.skoldas@tele2.se 2015

# Spelregler

Classic Reversi and Reverse Reversi are boardgames opposing two players, called Dark and Light. Both games are using the same rules; only the end goal differs between them: in Classic Reversi, the goal is to finish with more pieces than the opponent; while in Reverse Reversi, it is to finish with less pieces.

Both are played with pieces that are dark on one side and light on the other. Dark and Light play one after each other by adding on an empty tile a new piece of their color, trapping at least one opponent row of pieces; when pieces are captured that way, they are turned over to join the capturing player's forces.

# Game start

Games from the reversi game family are usually played on an 8 by 8 board. The game begins with four pieces, two light and two dark, placed on the four central tiles of the board.

Reversi uses by default the most usual start position for the reversi game family, that is displayed on the following figure; but it also allows you to vary start position if you prefer.

Usual start position: light-dark, dark-light
The usual start position

Dark goes first.

# During the game

One player after the other –Dark playing first– places a tile of its color on the board in such a way that at least one row of opponent tiles is trapped between the newly placed piece and an already placed one of the same color.

Denna placering kan vara horisontell, vertikal, eller diagonal.

When the tile is placed, the row of tiles between the newly placed tile and the other is flipped over, taking the players color. If multiple rows of tiles are trapped that way, they are all flipped over.

If there is no possible moves in a turn, the player has to pass. A player cannot pass a turn if there is a possible move. If both players cannot move, notably when the board is full, the game is over.

# End of game

The players alternate turns until no more legal moves can be made by either player. At this point the game is over.

The end of the game often results in a full board, but not necessarily. In either way, it is the number of pieces that will matter to decide who wins.

If you are playing Classic Reversi, the winner is the player with the most pieces of his color on the board; if you are in a Reverse Reversi game, it is the opposite: the winner is the player with the least pieces on the board.

If there is the same number of dark and light tiles, the game is declared a draw.