grandmaitre n° 14 : Page 39 - Grille 28

Le Territoire du tigre (Forcing Chain Contradiction)

L1C4 ≠ 4 L1C4 = 7 L5C9 = 7 L5C7 = 8 L7C7 = 6 L3C7 = 4 L1C4 = 4
donc L1C4 = 4