Rules to Mouse Island
copyright 1999, Don Green
Object: To eliminate all of the opponent's
mice or to prevent the opponent from
repositioning or removing a tile.
Pieces: The board consists of 10 rectangular
tiles, which have dark undersides. Each player
controls either 3 light or 3 dark mice.
Setup: Place the tiles and mice as shown in
Figure 1. Tiles are placed light side up.
Sequence of Play:
(I) In turn, each player must move one friendly
mouse forward one "square" (Figure 2).
(Sometimes a mouse must dive off the tiles, in
which case it is removed from play.) Only one
friendly mouse may occupy a square. If a
friendly mouse enters a square occupied by
another mouse, the latter is removed from play.
A player wins the instant that all of the
opposing mice have been removed.
(II) After moving, the player must reposition
one unoccupied light colored tile. This tile
may be relocated anywhere on the board as
long as all tiles are connected to each other by
at least one edge.
Once repositioned, a tile is flipped over, to
reveal the dark colored underside.
If no light colored tiles can be repositioned,
players instead must remove one unoccupied
dark colored tile from play. One loses if by
removing a tile, one creates another "island" of
unconnected tiles. Similarly, one wins if one's
opponent has no alternative but to remove a
tile with a mouse on it.
(III) At the conclusion of the move, a player
may rotate some or all of his/her mice north,
south, east, or west, as shown in Figure 4.
Scoring: If players wish to score a sequence of games, award the winner points equal to the number of mice he controls at the end of the game.