Maestro n° 103 : Page 83 - Gr 80

Discontinuous Nice Loop

r5c7 -1- r6c9 =1=3= r6c9 -3- r9c9 =3= r9c1 -3-4- r9c1 =4= r4c1 -4- r4c7 =4= r5c7 => r5c7 ≠ 1