% 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 #2. 
% There are _many_ solutions to this problem.
10
. . 1 2 3 4 . . . . 
. 1 2 3 . . 4 . . . 
1 2 3 . . . . 4 . . 
2 3 . . . . . . 4 . 
3 . . . . . . . . 4 
5 6 . . . . . . . . 
. 5 6 . . . . . . . 
. . 5 6 . . . . . . 
. . . 5 6 . . . . . 
. . . . 5 6 . . . .