Tango · No. 680 · Tuesday edition
LinkedIn Tango #680 Answer (Aug 18, 2026)
Hint: Two identical symbols side by side force the opposite symbol on both ends.
Show Tango #680 answer as text
- Row 1: ☀☾☀☀☾☾
- Row 2: ☾☾☀☾☀☀
- Row 3: ☀☀☾☾☀☾
- Row 4: ☀☾☾☀☾☀
- Row 5: ☾☀☀☾☀☾
- Row 6: ☾☀☾☀☾☀
About Tango #680
- Tango #680 starts with 12 of 36 squares filled: 4 suns and 8 moons.
- It has 1 equals sign and 7 cross signs between neighboring squares.
- It has 12 pre-filled squares, more than the average of 7.4 across the previous 7 puzzles.
- This opening fills 3 squares by pure deduction from the 12 pre-filled symbols, with no guessing.
- R1C5 and R1C6 are neighboring moons in row 1, and a third moon beside them would make three in a row, so R1C4 next to them must be a sun.
- R5C1 and R6C1 are neighboring moons in column 1, and a third moon beside them would make three in a column, so R4C1 next to them must be a sun.
- Row 1 already holds 3 moons, which is its full quota of half the 6 squares, so its last empty square, R1C3, must be a sun.