grandmaitre n° 14 : Page 58 - Grille 47

Le Territoire du tigre (Forcing Chain Contradiction)

L1C7 ≠ 3 L1C8 = 3 L6C1 = 3 L5C1 = 9 L2C1 = 1 L2C6 = 3 L5C5 = 3 L1C7 = 3
donc L1C7 = 3