2026-07-16
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Puzzle guide
Full breakdown using the Case file format — cell deductions, sign analysis, and strategy notes.
Overview
LinkedIn Tango #647 is the LinkedIn Tango daily for July 16, 2026. Tango is LinkedIn's balance puzzle: fill a 6×6 grid so every row and column has 3 suns and 3 moons, never three identical symbols in a line, and all = and × signs between neighbors are satisfied. This page includes the live board, a solved-board view, and a step-by-step Solution walkthrough. Difficulty: Medium. Estimated solve time: 4–6 min.
Answer
18 suns and 18 moons across the 6×6 grid.
This 6×6 board has 8 starting clues and 4 adjacency signs (3 equal, 1 opposite).
Analysis
Case opened on LinkedIn Tango #647: 6×6 Tango grid, 8 preset cells, 4 sign constraints. The completed grid holds 18 suns and 18 moons across the 6×6 grid. Evidence chain: 28 deduced placements after givens.
Forensic read: only one symbol still valid (18); the no-three-in-a-row rule blocks a repeat (3); column balance closes the line (2); an = sign links neighbors (2); two matching symbols sandwich this cell (1); row balance forces the last symbol (1); a × sign demands opposites (1). Several = signs link neighboring cells — once one symbol is known, equal chains propagate suns and moons across the grid. Cross-check every = and × against filled cells — a broken pair is the fastest way to spot a wrong symbol.
Early exhibits (R1C3 → Moon (the no-three-in-a-row rule blocks a repeat); R4C3 → Moon (the no-three-in-a-row rule blocks a repeat); R4C4 → Sun (two matching symbols sandwich this cell)) tie givens to sign constraints. Mid-case placements (R6C1 = Moon, R6C6 = Sun) confirm the propagation theory. Closing exhibits (R6C3 → Sun and R6C4 → Sun) complete the 6×6 grid without violating the no-three rule.
Balance audit: Every row and column holds exactly 3 suns and 3 moons (row 1: 3 suns, 3 moons; row 2: 3 suns, 3 moons; row 3: 3 suns, 3 moons; row 4: 3 suns, 3 moons; row 5: 3 suns, 3 moons; row 6: 3 suns, 3 moons). No row or column exceeds 3 of either symbol in the solution.
Constraint verification: 3 equal signs require matching neighbors; 1 opposite signs require different symbols. A single broken edge means the grid fails even if row balance looks correct.
No-three rule pass: scan every row and column for three consecutive suns or moons — none appear in the completed grid. Sandwich cases (sun-moon-sun patterns around a filled pair) often force the middle cell and show up as two matching symbols sandwich this cell deductions on boards like this.
Verdict: consistent 6×6 Tango solution. 18 suns and 18 moons across the 6×6 grid. Case closed — 28 deduced cells, zero rule violations.
Cells
Reasoning
Sun is ruled out: Two suns sit to the left — a third sun here would break the no-three-in-a-row rule.
Solving note
Exhibit A: Moon at R1C3 because the no-three-in-a-row rule blocks a repeat. Start from givens and adjacent signs.
Reasoning
Sun is ruled out: Two suns sit to the left — a third sun here would break the no-three-in-a-row rule.
Solving note
Exhibit B: Moon at R4C3 because the no-three-in-a-row rule blocks a repeat. Update row/column counts before the next placement.
Reasoning
Two moons sandwich this cell — it must be Sun to avoid three moons in a row.
Solving note
Exhibit C: Sun at R4C4 because two matching symbols sandwich this cell. Update row/column counts before the next placement.
Reasoning
Row 4 still needs 1 more moon to reach the 3-and-3 balance, so the remaining open cells must be moons.
Solving note
Exhibit D: Moon at R4C6 because row balance forces the last symbol. Update row/column counts before the next placement.
Reasoning
Column 1 still needs 2 more moons for balance.
Solving note
Exhibit E: Moon at R5C1 because column balance closes the line. Update row/column counts before the next placement.
Reasoning
The = sign between this cell and Row 4, column 6 means they must match — Row 4, column 6 is Moon, so this cell is Moon.
Solving note
Exhibit F: Moon at R5C6 because an = sign links neighbors. Update row/column counts before the next placement.
Reasoning
Moon is ruled out: Two moons sit below — this cell cannot be moon.
Solving note
Exhibit G: Sun at R3C6 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
The = sign between this cell and Row 3, column 6 means they must match — Row 3, column 6 is Sun, so this cell is Sun.
Solving note
Exhibit H: Sun at R3C5 because an = sign links neighbors. Update row/column counts before the next placement.
Reasoning
Sun is ruled out: Two suns sit to the right — this cell cannot be sun.
Solving note
Exhibit I: Moon at R3C4 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Column 1 still needs 1 more moon for balance.
Solving note
Exhibit J: Moon at R6C1 because column balance closes the line. Update row/column counts before the next placement.
Reasoning
Moon is ruled out: Two moons sit above — a third moon here would break the no-three-in-a-row rule.
Solving note
Exhibit K: Sun at R6C6 because the no-three-in-a-row rule blocks a repeat. Update row/column counts before the next placement.
Reasoning
The × sign between this cell and Row 6, column 6 means they must differ — Row 6, column 6 is Sun, so this cell is Moon.
Solving note
Exhibit L: Moon at R6C5 because a × sign demands opposites. Update row/column counts before the next placement.
Reasoning
Row 1, column 4 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit M: Moon at R1C4 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 1, column 5 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit N: Sun at R1C5 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 1, column 6 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit O: Moon at R1C6 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 2, column 2 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit P: Moon at R2C2 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 2, column 3 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit Q: Moon at R2C3 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 2, column 4 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit R: Sun at R2C4 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 2, column 5 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit S: Moon at R2C5 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 2, column 6 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit T: Sun at R2C6 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 3, column 2 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit U: Moon at R3C2 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 3, column 3 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit V: Sun at R3C3 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 5, column 2 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit W: Sun at R5C2 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 5, column 3 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit X: Sun at R5C3 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 5, column 4 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit Y: Moon at R5C4 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 6, column 2 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit Z: Moon at R6C2 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 6, column 3 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit AA: Sun at R6C3 because only one symbol still valid. Update row/column counts before the next placement.
Reasoning
Row 6, column 4 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs.
Solving note
Exhibit AB: Sun at R6C4 because only one symbol still valid. Final open cell — grid complete after this.
Verification
Evidence supports the placement chain: 28 cells beyond givens, each with documented reasoning. Alternative symbols at any step would violate an = link, × link, balance limit, or three-in-a-row rule.
Solve path
Phase 1: 6×6 Tango board with 8 locked clues and 4 adjacency signs — each row and column needs 3 suns and 3 moons with no three identical symbols in a line. Step 1: R1C3 → Moon (no-three rule). Sun is ruled out: Two suns sit to the left — a third sun here would break the no-three-in-a-row rule. Step 2: R4C3 → Moon (no-three rule). Sun is ruled out: Two suns sit to the left — a third sun here would break the no-three-in-a-row rule. Step 3: R4C4 → Sun (sandwich rule). Two moons sandwich this cell — it must be Sun to avoid three moons in a row. Step 4: R4C6 → Moon (row balance). Row 4 still needs 1 more moon to reach the 3-and-3 balance, so the remaining open cells must be moons. Step 5: R5C1 → Moon (column balance). Column 1 still needs 2 more moons for balance. Step 6: R5C6 → Moon (equal sign). The = sign between this cell and Row 4, column 6 means they must match — Row 4, column 6 is Moon, so this cell is Moon. Step 7: R3C6 → Sun (naked single). Moon is ruled out: Two moons sit below — this cell cannot be moon. Step 8: R3C5 → Sun (equal sign). The = sign between this cell and Row 3, column 6 means they must match — Row 3, column 6 is Sun, so this cell is Sun. Step 9: R3C4 → Moon (naked single). Sun is ruled out: Two suns sit to the right — this cell cannot be sun. Step 10: R6C1 → Moon (column balance). Column 1 still needs 1 more moon for balance. Step 11: R6C6 → Sun (no-three rule). Moon is ruled out: Two moons sit above — a third moon here would break the no-three-in-a-row rule. Step 12: R6C5 → Moon (opposite sign). The × sign between this cell and Row 6, column 6 means they must differ — Row 6, column 6 is Sun, so this cell is Moon. Step 13: R1C4 → Moon (naked single). Row 1, column 4 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 14: R1C5 → Sun (naked single). Row 1, column 5 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 15: R1C6 → Moon (naked single). Row 1, column 6 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 16: R2C2 → Moon (naked single). Row 2, column 2 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 17: R2C3 → Moon (naked single). Row 2, column 3 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 18: R2C4 → Sun (naked single). Row 2, column 4 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 19: R2C5 → Moon (naked single). Row 2, column 5 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 20: R2C6 → Sun (naked single). Row 2, column 6 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 21: R3C2 → Moon (naked single). Row 3, column 2 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 22: R3C3 → Sun (naked single). Row 3, column 3 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 23: R5C2 → Sun (naked single). Row 5, column 2 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 24: R5C3 → Sun (naked single). Row 5, column 3 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 25: R5C4 → Moon (naked single). Row 5, column 4 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 26: R6C2 → Moon (naked single). Row 6, column 2 must be Moon in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 27: R6C3 → Sun (naked single). Row 6, column 3 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Step 28: R6C4 → Sun (naked single). Row 6, column 4 must be Sun in the completed grid — fill it to satisfy row and column balance with the remaining signs. Complete: 18 suns and 18 moons across the 6×6 grid. All = and × constraints satisfied — no row or column violates balance or the no-three rule.
Pattern
Several = signs link neighboring cells — once one symbol is known, equal chains propagate suns and moons across the grid.
Every row and column holds exactly 3 suns and 3 moons (row 1: 3 suns, 3 moons; row 2: 3 suns, 3 moons; row 3: 3 suns, 3 moons; row 4: 3 suns, 3 moons; row 5: 3 suns, 3 moons; row 6: 3 suns, 3 moons).
Learn more in Tango Puzzle Strategies →Takeaways
Early chain: R1C3=Moon, R4C3=Moon, R4C4=Sun. These placements constrain the rest of the grid.
Any symbol that creates three in a row or breaks an = / × pair is illegal — most wrong taps fail on signs, not balance.
Equal-sign chain board, 8 givens, 4 signs. File that combo for future Tango dailies.
Solution
This 6×6 grid has 8 locked clues and 4 adjacency signs (3 equal, 1 opposite). 18 suns and 18 moons across the 6×6 grid. Every row and column holds exactly 3 suns and 3 moons (row 1: 3 suns, 3 moons; row 2: 3 suns, 3 moons; row 3: 3 suns, 3 moons; row 4: 3 suns, 3 moons; row 5: 3 suns, 3 moons; row 6: 3 suns, 3 moons). Several = signs link neighboring cells — once one symbol is known, equal chains propagate suns and moons across the grid. Use the Solution tab for a cell-by-cell reveal with live board updates and constraint reasoning, or the Solved board tab for the complete grid.