QUADRAPHAGES

In each turn a player
(a) moves his stones rookwise, the previous # of cells;
(b) announces a new number (between 1 and 8);
(c) moves his stones the new number of cells.

When a stone leaves a cell, it marks it with its own colour.
A stone may not land on a marked or occupied square, or leave the board.
Given a number, stone must move if it can, otherwise it remains stationary.
Intervening own-pieces or marks of either type do not block a move,
but opponent pieces do.  The first move begins with operation (b) & (c) only.

The game stops when all four stones in succession fail to move; then...
the winner is whoever has the most marked cells.

              _XX_                         _OO_
1.  ....  ....     ....  ....    ....  ....  8  g9g1  c1c9
2.  a7i7  i3a3  6  i7c7  a3g3    c9i9  g1a1  1  a1a2  i9h9
3.  g3f3  c7b7  6  f3f9  b7h7    a2g2  ----  1  h9h8  g2h2
4.  h7h6  f9f8  1  h6i6  f8g8    h2h3  h8h9  1  h3h4  ----
5.  g8g7  i6i5  3  i5i2  g7g4    h4h1  ----  6  h1b1  i8c8
6.  i2c2  g4a4  1  c2b2  a4b4    c8d8  ----  5  b1b6  d8d3

Current Position

a b c d e f g h i    
o o o . . . o o .  1  
o X x . . . o o x  2
x . . O . x x o x  3
x X . . . . x o .  4
. . . . . . . . x  5
. O . . . . . x x  6
x x x . . . x x x  7
. . o o . x x o o  8
. . o . . x o o o  9