Bird Sudoku Level 144 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 144 Strategy
Hard Level 144 uses a 9x9 board with 29 perch cells, 10 blockers, and 7 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 144 Solution
Bird positions in the solution: R1C8, R2C5, R3C5, R4C2, R4C8, R5C4, R6C6, R7C4, R7C9, R8C9, R9C1.