grandmaitre n° 14 : Page 26 - Grille 15

Le Territoire du tigre (Forcing Chain Contradiction)

L1C4 ≠ 7 L1C8 = 7 L5C8 = 2 L5C5 = 4 L3C6 = 4 L3C9 = 3 L2C8 = 7 L1C4 = 7
donc L1C4 = 7