SAS WALLS

Rules like Cul-de-sac but with two moves/turn and a wall drop.
Each player initially, has two archways and one grenade.
* An archway between two squares prevents a wall there
* A grenade explodes a wall between two squares and prevents a wall there
Playing the power replaces the wall movement.

A Game Sample:
                      Joao
   A   B   C   D   E   F   G   H   I   J   K   L  
 a +-------------------------------------------+ a
   |                                           |  
 b |   +   +   +   +-------+   +   +   +   +   | b
   |                 B                         |  
 c |   +   +   +   +   +   +   +   +   +   +   | c
   |                                           |
 d |   +   +   +---#   #-------+   +   +   +   | d
   |                                           |
 e |   +   +-------+   +   +   +   +   +   +   | e
   |               |                           |
 f |-------+   +   |   +   +   +   +   +   +   | f
   |               |   |                       |
 g |---#   #-------+   |   +   +   +   +   +   | g
   |       |   |       |                       |
 h |   +   |   |-------+-------+-------+-------| h
   |     J |   |                               |
 i |   +   +   +   +   +-------+------->   <   | i
   |                   |                       |
 j |-------+   +   +   |   +   +   +   +   +   | j
   |                   |                       |
 k |   +   +   +   +   +   +   +   +   +   +   | k
   |                                           |
 l +-------------------------------------------+ l
   A   B   C   D   E   F   G   H   I   J   K   L
                      Bill

     Joao       Bill      
    --------------------
1.  .S  FHi    NN  FHd      
2.  SW  Fik    EE  DFd      
3.  WW  HJi    EE a@JKi
4.  SS  JLh    NW  CEg
5.  SE  HJh    WW  Eeg
6.  WW  FHh    WW  ACg
7.  EE  DFh    WW  CEe
8.  WW  Cgi    NE  ACf
9.  EW  DGi    EN  Ffh
10  EW g@BCg   NN g@EFd
11. SS  EGb    NN  ACj
12. resign