Sudoku Suprême n° 039 : Page 21 - Gr 18

La Piste du tigre (AIC-Discontinuous Nice Loop)

L1C2 -9- L9C2 =9=7= L9C2 -7- L9C3 =7= L5C3 -7-6- L5C3 =6= L5C7 -6- L6C8 =6=8= L6C8 -8- L6C2 =8= L1C2 donc L1C2 ≠ 9