Bird Sudoku Level 47 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 47 Strategy
Medium Level 47 uses a 7x7 board with 19 perch cells, 4 blockers, and 9 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 47 Solution
Bird positions in the solution: R1C2, R1C4, R1C6, R2C4, R3C1, R5C5, R6C2, R7C4.