Bird Sudoku Level 68 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 68 Strategy
Medium Level 68 uses a 7x7 board with 19 perch cells, 7 blockers, and 7 habitats. Use the row and column counts first, then test each open diagonal flight line.
Bird Sudoku Level 68 Solution
Bird positions in the solution: R1C4, R2C2, R2C6, R3C4, R4C2, R4C7, R5C4, R7C3.