Bird Sudoku Level 103 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 103 Strategy
Hard Level 103 uses a 9x9 board with 29 perch cells, 8 blockers, and 8 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 103 Solution
Bird positions in the solution: R1C3, R1C5, R2C8, R3C2, R4C9, R5C2, R6C9, R7C1, R8C6, R9C8, R9C9.