Bird Sudoku Level 72 Hint
Pick a row, column, or habitat with a low remaining count, then check which of its perch cells are blocked by open diagonal flight lines.
Bird Sudoku Level 72 Strategy
Medium Level 72 uses a 8x8 board with 21 perch cells, 7 blockers, and 10 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 72 Solution
Bird positions in the solution: R1C1, R1C3, R1C7, R3C2, R4C2, R4C8, R5C6, R6C2, R8C5.