Maestro n° 103 : Page 81 - Gr 78

XY-Chain Eclate Renforce

r6c8 -8- r6c2 -6- r6c6 -1- r6c9 +9+ r9c2 -5 => r9c8 ≠ 5. The candidates 9 in cells r69c1 used as strong link for the indirect link r6c9 +9+ r9c2