Bird Sudoku Level 160 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 160 Strategy
Hard Level 160 uses a 9x9 board with 29 perch cells, 8 blockers, and 7 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 160 Solution
Bird positions in the solution: R1C2, R1C6, R4C1, R5C1, R5C3, R5C4, R5C9, R6C1, R6C7, R8C2, R9C9.