DÉRIVE

Copyright (c) 2002 Olivier Gibaud, Couleur Voyelles

This game is played on a 10x10 square board.

 
ENTER CELLS - Each player has four enter cells (the dotted cells in the diagram) at their first row.
TURN -  On each turn, each player must do one of the following things:
Insert a friendly stack of size 1 on his enter cells (each player can only insert 10 stacks during the game).
Move a friendly stack to a diagonally adjacent empty cell.
Jump over a stack (of either color) diagonally adjacent landing on the immediate empty cell. Jumps can be multiple and do not capture stacks.
Insert or remove one stone from a friendly stack (to a minimum of 1 and a maximum of 6)
Capture by replacement a diagonally adjacent enemy stack, provided that:
the captured stack have less stones. Then the capturing stack will subtract that number from its size (e.g., a stack of size 5 capturing a stack of size 2, becomes a stack of size 3); or
both stacks have the same size. In this case, the capturing stack becomes a stack of size 1.
GOAL - Wins the player that moves a stack to an enemy enter cell.
 
An example

The white stack of size 1 can jump over the other two stacks, first jumping to [1] then to [2].

If it was Black's turn, the black stack can capture the adjacent white stack by moving there. After the capture, the black stack would have size 3 (4 minus 1)

The original game can be played up to 4 players. There is also some variants with more complex winning conditions. Check those are more at this website (in French).