Setup

Each player should have 8 pieces, such that the pieces of one player can be distinguished from the other's. These pieces themselves should have two distinguishable sides (referred to in these rules as "heads" and "tails"). Both players should place these pieces on a regular chess- or checkerboard, with one piece per square, so as to fill the row of squares closest to them (referred to in these rules as their "home row" of squares). All pieces begin the game in their "tails" orientation.

Both players have their own off-board storage area for pieces, called their "reserve". These storage areas start out empty.

Turn Structure

Players alterate taking turns. The player whose turn it is will be called the "mover". The other player will be called the "guesser".

When a turn begins, the "guesser" will record (in secret) a piece that he believes the mover will move this turn. After he has made his guess and recorded it, he will indicate to the mover that they may move. The mover then takes the moves they are allotted this turn (1 move for the first turn, but they may have more on later turns as described below).

In the course of taking the moves they were allotted for the turn, the mover may have moved the piece that the guesser recorded. For every time the mover moved that piece, the player who is now the guesser will have an additional move allocated on their next turn.

After the mover has taken all of their moves, the guesser reveals how many times the mover moved the piece that the guesser guessed (and, therefore, the number of additional moves that the guesser will be entitled to in the upcoming turn, when he becomes the mover). The turn ends, and the player who was the guesser becomes the mover, and the player who was the mover becomes the guesser as the next turn begins.

Movement

One move consists of one of two alternatives:

1. Moving one piece to an adjacent square. If the square is occupied, the piece already on the square is removed to its owner's off-board reserve area, the moving piece enters the square, and the moving piece's orientation is reversed (from heads to tails, or vice versa).
   • A tails piece may move one square horizontally.
   • A heads piece may move one square vertically.
2. Taking one piece from the off-board reserve and placing it onto the board adjacent to a tails piece (the moving player may choose the orientation of the piece so placed). For every time this is done, for the purposes of the guesser's recording, the tails piece (that the piece was placed adjacent to) is considered to have moved once.

Victory