Zodiac Project: Libra
(Published on 14. May 2025, 02:28 by Scojo)
I'm very excited to finally present the 21st puzzle in the Zodiac Project, a series where setters create a puzzle based on a disjoint set given to them by the previous setter! Thank you to
juggler for nominating me!
Rules:
- Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
- Weights: The nine diamonds all contain different digits. The weight of a diamond is the average (arithmetic mean) of the up to four digits touched by its corners (the digit in the diamond itself does not contribute to this average).
- Scales: Each small white circle is the fulcrum of a scale, whose arm is a straight line passing through it. If the line that passes through a fulcrum is horizontal, then the two sides have equal weight (taking torque multipliers into account); if not, the lower side has a greater weight.
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Scale calculations are made using torque, which is the weight times the horizontal distance from the fulcrum. This horizontal distance multiplier is provided on each diamond or hanging fulcrum, for ease of solving. For example, for the scale with its fulcrum in r1c3, the weight of r1c1 must be half the weight of r2c4, so that after the 2x torque multiplier is applied to r1c1, both sides of the scale will be balanced.
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Where one scale hangs from another, the weight of the hanging scale is the sum of any weights attached to it, centered at the hanging fulcrum. Specifically in this puzzle, this means that the weight of r5c5 must be equal to the sum of the weights of r6c8 and r8c6.
I'm nominating
ChinStrap to be the next setter in this series! ChinStrap has done a lot of hard work for this community testing puzzles and helping the community improve readability and user-friendliness regarding line colors and presentation. He is also a fantastic setter himself of course! ChinStrap will need to use the following disjoint set in his puzzle, which I chose because it has special significance in one of my most defining puzzles!
Solution code: Row 1
Last changed on on 16. May 2025, 05:51
Solved by ViKingPrime, Nell Gwyn, aqjhs, flyjim, juggler, zeniko, rehoo885, SKORP17, EFlatMinor, karlmortenlunna, The Book Wyrm, Franjo, SparklePuzzle, Neumino, ChinStrap, rich_27, OrestisLomis, sorryimLate, Cryccu, pkp, robokong, kirito360, widjo, QuiltyAsCharged, etoler
Comments
on 16. May 2025, 13:50 by Franjo
ViKingPrime is right! And I’m glad I gave my brain a minute (no, a few minutes more) to understand what’s going on here. Thank you very much for creating and sharing this lovely puzzle.
on 14. May 2025, 02:43 by ViKingPrime
Once you're able to wrap your head around the rules - and it will take a minute, so hang in there! - it flows oh, oh so beautifully.