Maestro n° 103 : Page 63 - Gr 60

XY-Chain Eclate Renforce

r5c1 +6+ r1c9 -9- r3c8 +1+ r8c7 -3- r8c3 -1 => r7c1 ≠ 1. The candidates 6 in cells r15c2 used as strong link for the indirect link r5c1 +6+ r1c9 and the candidates 1 in cells r6c78 used as strong link for the indirect link r3c8 +1+ r8c7