PUZRULIVE LOGIC PUZZLE
PUZRU CHAIN PUZZLE #000000066

Hard 6×6 cage-sum puzzle #66.

Completed September 30, 2026. A hard no-guess logic puzzle from the live PUZRU Chain. It was discovered by VLADIMIRS in 04d · 04h · 20m · 30.5s, with 1 verified solver joining before the world moved on.

Unique solutionNo guessing required14 cagesLogic score 125Hard

Puzzle signature

Hard profile: 14 cages · 10 distinct cage totals · target range 4–18 · 8 two-cell cages · logic score 125. Use this profile as a quick map of the board's strongest cage constraints before you replay the round.

Puzzle analysis

This PUZRU archive puzzle uses 14 connected sum cages across a 6×6 grid with 6 carried fixed values. Its cage profile contains 8 two-cell, 4 three-cell and 2 four-cell cages. Target sums range from 4 to 18, with an average cage target of 9.0.

The generator assigned a logic score of 125, which PUZRU classifies as Hard. The archived quality record verifies one exact solution and a logical solve path without random guessing.

What makes this round distinct

This board combines 10 distinct cage totals. It contains 2 low-target cages (5 or below) and 1 high-target cage (18 or above), creating a round-specific balance between constrained low combinations and high-digit pressure. Its 8 two-cell cages create especially short candidate lists that interact tightly with row and column exclusions.

Logical deduction trace

  1. R1C5 starts fixed at 4 from the Chain carry.
  2. R2C6 starts fixed at 4 from the Chain carry.
  3. R3C1 starts fixed at 4 from the Chain carry.
  4. R4C4 starts fixed at 1 from the Chain carry.
  5. R5C3 starts fixed at 6 from the Chain carry.
  6. R6C2 starts fixed at 1 from the Chain carry.
  7. Cage R2C1, R3C1 totals 6; this removes 1/3/5/6 from R2C1.
  8. Cage R2C6, R3C5, R3C6 totals 8; this removes 2/5/6 from R3C5.
  9. Cage R2C6, R3C5, R3C6 totals 8; this removes 2/5/6 from R3C6.
  10. Cage R1C1, R1C2 totals 4; this removes 2/3/5/6 from R1C1.
  11. Cage R1C1, R1C2 totals 4; this removes 2/5/6 from R1C2.
  12. Cage R4C3, R4C4, R4C5 totals 6; this removes 4/5 from R4C3.
  13. Cage R4C3, R4C4, R4C5 totals 6; this removes 5/6 from R4C5.
  14. Cage R5C4, R5C5 totals 9; this removes 2/3/5 from R5C4.
  15. Cage R5C4, R5C5 totals 9; this removes 1/2/3 from R5C5.
  16. Cage R3C2, R3C3, R3C4 totals 13; this removes 3 from R3C2.
  17. Cage R3C2, R3C3, R3C4 totals 13; this removes 1/3 from R3C3.
  18. Cage R3C2, R3C3, R3C4 totals 13; this removes 3 from R3C4.
  19. Cage R4C1, R5C1 totals 8; this removes 2 from R4C1.
  20. Cage R4C1, R5C1 totals 8; this removes 1 from R5C1.
  21. Cage R1C5, R1C6, R2C4, R2C5 totals 18; this removes 1/2 from R1C6.
  22. Cage R1C5, R1C6, R2C4, R2C5 totals 18; this removes 1 from R2C5.
  23. Cage R5C3, R6C3, R6C4 totals 15; this removes 2 from R6C3.
  24. Cage R5C3, R6C3, R6C4 totals 15; this removes 2/3 from R6C4.

How to approach this 6×6 puzzle

Core ruleEvery row and every column must contain the digits 1 through 6 exactly once, while every connected cage must add to its printed target.

The live result

VLADIMIRS became the Discoverer by submitting the first verified solution accepted by the global authority. After that moment, the shared 45-second contribution window remained open and the puzzle finished with 1 verified solver.

Six values continued into the Chain

The PUZRU world never resets to a completely unrelated board. Six solved positions from this puzzle were carried into the next puzzle as fixed values. For Puzzle #66, the carried values were 1 4 6 1 5 4.

This carry rule makes every puzzle both a standalone logic challenge and one link in an ongoing global sequence.

Chain proof

The public archive records the completed puzzle and its cryptographic Chain hash so later rounds can be linked back to the same history.

IGnQSantkI6n6EI08DT1TiF9npy9D9JTcWDSuyYsh6E

Archive replay is unranked: it never changes the live Chain or leaderboard.

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