Maestro n° 094 : Page 76 - Gr 73
L2C4 =7= L2C7 -7-9- L2C7 =9= L2C8 -9-5- L2C8 =5= L7C8 -5-3- L7C8 =3= L7C4 -3- L8C4 =3= L8C3 -3-7- L8C3 =7= L7C3 -7-2- L7C3 =2= L3C3 -2-4- L3C3 =4= L3C4 donc L2C4 ≠ 4 et L3C4 ≠ 7