% Quasigroup completion problem. 
% This problem file is used by 
% http://www.hakank.org/choco/QuasigroupCompletion.java
% 
% Problem from http://www.cs.cornell.edu/gomes/QUASIdemo.html
% (n = 10)
% Pattern #4. 
%  dark red   = 1
%  light blue = 2
%  dark blue  = 3
%  light red  = 4
% Note: There are no solutions to this problem.
10
1 . . . . . . . . . 
2 1 . . . . . . . 4 
3 2 1 . . . . . 4 . 
. 3 2 1 . . . 4 . . 
. . 3 2 1 . 4 . . . 
. . . 3 2 1 . . . . 
. . . . 3 2 1 . . . 
. . . 4 . 3 2 1 . . 
. . 4 . . . 3 2 1 . 
. 4 . . . . . 3 2 1