Bird Sudoku Level 149 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 149 Strategy
Hard Level 149 uses a 9x9 board with 29 perch cells, 9 blockers, and 9 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 149 Solution
Bird positions in the solution: R1C5, R2C8, R2C9, R4C1, R5C1, R5C5, R6C7, R6C9, R9C3, R9C5, R9C8.