Bird Sudoku Level 180 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 180 Strategy
Hard Level 180 uses a 8x8 board with 27 perch cells, 10 blockers, and 7 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 180 Solution
Bird positions in the solution: R1C3, R1C5, R2C5, R3C2, R4C8, R5C8, R6C4, R7C2, R7C7, R8C5.