Maestro n° 103 : Page 60 - Gr 57

XY-Chain Eclate Renforce

r1c8 +8+ r5c1 +1+ r9c8 -7- r8c7 -3 => r13c7 et r8c8 ≠ 3. The candidates 8 in cells r4c18 used as strong link for the indirect link r1c8 +8+ r5c1 and the candidates 1 in cells r59c4 used as strong link for the indirect link r5c1 +1+ r9c8