grandmaitre n° 14 : Page 27 - Grille 16

Le Territoire du tigre (Forcing Chain Contradiction)

L1C1 ≠ 2 L1C5 = 2 L1C7 = 9 L5C7 = 1 L7C3 = 1 L2C3 = 2 L2C7 = 9 L1C5 = 9 L1C1 = 2
donc L1C1 = 2