Bird Sudoku Level 142 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 142 Strategy
Hard Level 142 uses a 8x8 board with 27 perch cells, 10 blockers, and 6 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 142 Solution
Bird positions in the solution: R2C2, R2C4, R4C1, R4C5, R4C8, R5C8, R6C1, R7C1, R8C6, R8C8.