Suprême n° 023 : Page 74 - Gr 71
L1C7 -2- L1C5 =2=4= L1C5 -4- L1C9 =4= L9C9 -4-6- L9C9 =6= L7C9 -6- L7C3 =6= L1C3 -6-1- L1C3 =1= L1C7 donc L1C7 ≠ 2