grandmaitre n° 17 : Page 59 - Grille 46
L7C3 -3- L7C5 =3=9= L7C5 -9- L7C7 =9=6= L7C7 -6- L9C9 =6=8= L9C9 -8- L5C9 =8=5= L5C9 -5- L8C9 =5=1= L8C9 -1- L8C2 =1= L7C3 donc L7C3 ≠ 3