Tango · No. 678 · Sunday edition
LinkedIn Tango #678 Answer (Aug 16, 2026)
Hint: Two identical symbols side by side force the opposite symbol on both ends.
Show Tango #678 answer as text
- Row 1: ☀☀☾☾☀☾
- Row 2: ☀☾☾☀☾☀
- Row 3: ☾☾☀☾☀☀
- Row 4: ☀☀☾☀☾☾
- Row 5: ☾☀☀☾☀☾
- Row 6: ☾☾☀☀☾☀
About Tango #678
- Tango #678 starts with 6 of 36 squares filled: 5 suns and 1 moon.
- It has 2 equals signs and 1 cross sign between neighboring squares.
- LinkedIn rates it Hard.
- It has 6 pre-filled squares, fewer than the average of 7.7 across the previous 7 puzzles.
- This opening fills 4 squares by pure deduction from the 6 pre-filled symbols, with no guessing.
- R1C1 and R1C2 are neighboring suns in row 1, and a third sun beside them would make three in a row, so R1C3 next to them must be a moon.
- R4C1 and R4C2 are neighboring suns in row 4, and a third sun beside them would make three in a row, so R4C3 next to them must be a moon.
- Column 1 already holds 3 suns, which is its full quota of half the 6 squares, so its remaining empty squares R5C1 and R6C1 must all be moons.