Yova 1.1 for Windows - Windows 
version of Attax.  Similar board, 
pieces and goal of Othello, but 
with different move rules.

To play Select a piece, by clicking on it with the left button.
Select and empty place to put the the piece down.  Any of the enemies 
pieces that your piece touches, becomes yours.

Valid moves:  
- open slot 
x your select piece 
o new piece 
+ mouse click for new piece
  
Selecting any of the eight surrounding squares will place a new piece down
and leave the original piece.

  -  -  -     -  -  -
  -  x  +     -  x  o    
  -  -  -     -  -  -

Selecting any 16 squares that surround the previous diagram will place 
a new piece down, but it will REMOVE the old piece.

-  -  -  -  -     -  -  -  -  -
-           -     -           -
-     x     -     -     -     -  
-           +     -           o
-  -  -  -  -     -  -  -  -  -

These are the only valid moves.  To win, have the most pieces or capture
all of you opponents pieces.

If you have no moves you can pass. (F9 or select pass from the menu)

If you beat the computer in single player mode, the board will clear and
spaces will be removed.  You cannot put a piece on the squares.