Bird Sudoku Level 102 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 102 Strategy
Hard Level 102 uses a 9x9 board with 29 perch cells, 8 blockers, and 9 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 102 Solution
Bird positions in the solution: R1C6, R2C2, R2C3, R3C6, R3C7, R5C4, R7C1, R7C4, R7C5, R7C8, R9C9.