Maestro n° 103 : Page 45 - Gr 42

AIC Type 2

r8c7 =3= r8c4 -3-5- r8c4 =5= r8c1 -5-4- r8c1 =4= r7c2 -4- r1c2 =4=9= r1c2 -9- r9c2 =9= r9c7 => r9c7 ≠ 3 and r8c7 ≠ 9