Maestro n° 094 : Page 84 - Gr 81
L8C3 =7= L4C3 -7-4- L4C3 =4= L4C2 -4- L1C2 =4=1= L1C2 -1- L6C2 =1=7= L6C2 -7- L6C6 =7= L9C6 -7- L8C5 =7=9= L8C5 donc L8C5 ≠ 7 et L8C3 ≠ 9