Maestro n° 103 : Page 47 - Gr 44

AIC Type 2

r9c5 =4= r1c5 -4-7- r1c5 =7= r2c5 -7- r2c9 =7= r3c9 -7-4- r3c9 =4= r3c6 -4- r7c6 =4= r7c1 -4- r9c3 =4=8= r9c3 => r9c3 ≠ 4 and r9c5 ≠ 8