Gyges* (designer: Claude Leroy)

Accessories:
- a 6x6 game board
- 12 pieces (4 "1", 4 "2" and 4 "3" piece, e.g. 1/2/3 stacked checkers, color does not matter)

Goal:
- To move a piece exactly one step (!) over the far end of the board
- If the opponent could have evaded it, he can take his last move back
  (so one must win in a way that it cannot be stopped)

Starting position:
- Both players have 2 of each of the three types of pieces
- The place them in turns on the row closest to them
- Alternatively: the first player places all 6 pieces, then the second player does the same

Game:
- Players move in turns
- In each turn they move one piece
- Only the pieces in the closest non-empty row ("active row") can be moved
  (If there are no movable pieces, then in the next row, and so on.)
- A piece has to move as many steps as its type (1, 2 or 3)
- Steps can be taken horizontally or vertically, not necessarily in the same direction
- Other pieces cannot be jumped over
- A dividing line between two squares cannot be crossed twice in one move
- If a piece lands on an occupied square, there are two options:
  1. Bounce: take as many more steps as the occupying piece would
  2. Replace: place the occupying piece on any square, but not behind the opponent's active row


* Gyges was the king of Lydia (c. 680-650 BC).
In the original 1985 version of the game (published by Swiss Games), the pieces
looked like stacks of (1, 2 or 3) rings. This may be a reference to the Ring of Gyges,
which makes its bearer invisible, according to Plato's "Republic" (2.359a-2.360d):

    "According to the tradition, Gyges was a  shepherd in the service of the king of
    Lydia; there was a  great storm, and an earthquake made an  opening in the earth
    at the place where  he was feeding his flock. Amazed at  the sight, he descended
    into the opening,  where, among other marvels, he beheld  a hollow brazen horse,
    having doors, at which he stooping and looking in saw a dead body of stature, as
    appeared to him, more than human, and having nothing on but a gold ring; this he
    took from the finger of the dead and reascended. Now the shepherds met together,
    according to custom, that they might  send their monthly report about the flocks
    to the king; into  their assembly he came having the ring on  his finger, and as
    he was sitting among  them he chanced to turn the collet of  the ring inside his
    hand, when  instantly he became  invisible to the rest  of the company  and they
    began to  speak of him  as if he  were no longer  present. He was  astonished at
    this, and again touching the ring  he turned the collet outwards and reappeared;
    he made  several trials  of the ring,  and always with  the same  result-when he
    turned  the collet  inwards he  became invisible,  when outwards  he reappeared.
    Whereupon he contrived to  be chosen one of the messengers who  were sent to the
    court; where  as soon  as he  arrived he seduced  the queen,  and with  her help
    conspired against the king and slew him, and took the kingdom."