Maestro n° 103 : Page 87 - Gr 84
r3c3 -3- r8c3 -1- r6c3 -6- r6c8 +4+ r9c6 -3- r3c6 -2- r3c3 -2 => r2c36 ≠ 3. The candidates 4 in cells r69c5 used as strong link for the indirect link r6c8 +4+ r9c6