Easy board
Structure hint
Easy · 5 dominoes · 10 cells. Start by checking the smallest constrained regions: R1: Sum < 2; R2: All equal; R3: Sum > 2; R4: Sum = 20.
Domino set
Available dominoes: 1-5, 2-6, 5-5, 0-6, 5-0.
Full solution
Easy board
Solution by domino: 1-5 at (1,3)-(2,3); 2-6 at (0,3)-(0,2); 5-5 at (2,1)-(2,2); 0-6 at (0,0)-(0,1); 5-0 at (2,0)-(1,0).
