grandmaitre n° 14 : Page 20 - Grille 9

Le Territoire du tigre (Forcing Chain Contradiction)

L1C2 ≠ 5 L1C89 = 5 L2C8 = 6 L1C5 = 6 L7C5 = 1 L7C7 = 7 L8C2 = 7 L8C6 = 8 L3C6 = 5 L3C23 ≠ 5 L1C2 = 5
donc L1C2 = 5