ATAXX

Copyright (c) 1988 Dave Crummack, Craig Galley

The game is played on a 7x7 board, with the following setup:


MOVES - A move consists of either a "growth" or a "jump". 
A growth is a drop of a stone on an empty adjacent (orthogonal or diagonal) empty cell. 
A jump is when one stone already on board moves to an empty cell that is two positions away. This includes diagonals and "knights moves".
Once placed, any opponents adjacent stones to the new piece (either through growth or jump) are flipped to the moving player's color.
PASS - A player who cannot move must pass.
GOAL - Wins the player with most stones at the end of the game.
An example

If White jumps to [1], the 2 adjacent black stones are flipped. If a black stone jumps to [2], both white stones are flipped to black.

This game can be easily extended to 3 or 4 players, and also to larger boards.

With hexagonal boards, a growth is a move to an adjacent cell, and a jump is a 2 cell move (check Hexxagon ).

Check here for more information about Ataxx.

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Four Couleur - A 2012 variant proposed by Bill Taylor:

Sample match (this game produces longer than usual games):

     ____BT_____      ____JN_____
 1.   ---   Ti5       No3    Jt8
 2.  i5l4   s5s7      Jc7    Ni9
 3.  g13g11 Bu9       c7f6   i9m9
 4.  Th10   g1i3      m9q9   f6h8
 5.  Bh4    Tn4       h8f10  q9m11
 6.  Tx8    i3l2      s1s3   Nl10
 7.  t8r6   x8t8      h10k9  s3p4
 8.  r6n4   Bn2       Jm9    Nj10
 9.  g5d6   s9s11     Ni9    Jn10
10.  Tr12   Bc6       o11k11 Ko11
11.  Bn6    Bt10      o11r12 l10l8
12.  Tk5    Bu11      m11n11 Ng9
13.  t8r10  t12q13    Jp10   Nl12
14.  Bs9    r12o11    Nl10   g9e7
15.  Tj6    Tr12      m11p12 Jj8
16.  r12n12 Tr12      j8l6   m9m11
17.  Bm5    Bn10      q11q9  n12q11
18.  l6j8   Bl6       q13t12 Nm9
19.  j8h10  Bn12      Nq13   Nv10
20.  l4i5   Tx8       n10p8  Nn10
21.  j6j8   i5f6      t20t8  Ju10
22.  l8o9   i9i11     o11m13 Jo11
23.  Ts9    Tr8       t10v8  J10
24.  k11k13 Tk11      o11o13 Jo11
25.  Tj12   n6q7      p10n8  Np10
26.  y7w9   Bo7       o9l8   No9
27.  o7k7   s7o7      o9m7   Jo9
28.  f6j6   r8p6      Nn6    Jr8
29.  Bs7    Tl4       k9i7   Nk9
30.  Tq5    h4h5      m9i9   Ji9     
31.  Bg9    e7h8      j10h12 Nj10    
32.  s7w7   Bu7       p8r6   p10p8   
33.  Bs7    Br4       q7s5   Jq7     
34.  o5q3   Bo5       r8t6   Nr8     
35.  r4u5   Tr4       r6v6   Jr6     
36.  u5x6   g11i13    u7y7   Ju7     
37.  Bg11   Te7       k7g7   Nk7
38.  Bf8    l4i5      h10e9  Nh10
39.  Td8    Tf6       n6l4   Jn6
40.  i5e5   Ti5       i11g13 Ni11
40.  Tj4    Tk3       n4p2   Jn4
41.  k3m1   Bk3       i7g5   Ng5
42.  q5s3   o3q5      e9e11  To3
43.  Te9    Tf12      w7w5   Nw7
44.  o3o1   Bo3       r4r2   Nr4
45.  o3q1   To3       r4t2   Jr4
46.  resign

    abcdefghijklmnopqrstuvwxy      B > J > T > N > B
          . . . T T B .        
         . . . B T B N N       
        . . . B B T J J .      
       . . . T B B J J . .     
      . T T T T J N N J . J    
     . T T T T J J N J J J J   
    B T B N N N N J J N J N N  
     . T T N T N J N N N N N   
      . T T N N J J J J J T    
       . T N N J J . N J T     
        T T N T J J J J N      
         T T N T N N J N       
          T N T J J N N        
    abcdefghijklmnopqrstuvwxy