%% http://eclipse.crosscoreop.com/eclipse/examples/nono.ecl.txt
%% Problem n4
%% fz: < 1 sec
rows = 6;
row_rule_len = 2;
row_rules = array2d(1..rows, 1..row_rule_len,
   [
    2,1,
    0,1,
    0,2,
    0,2,
    0,1,
    1,2,
   ]);

cols = 6;
col_rule_len = 2;
col_rules = array2d(1..cols, 1..col_rule_len,
   [
    1,2,
    0,1,
    0,2,
    0,2,
    0,1,
    2,1
   ]);