Case and Point
(Published on 11. April 2025, 06:00 by oskode)
A 6x6 example and its solution can be found (and played) after the rules.
Rules:
- Chaos Construction: Fill all empty cells with a digit from 1-9 such that all rows, columns and regions contain no repeated digits. A region consist of nine orthogonally connected cells and must be deduced by the solver.
- Arrows: Digits along an arrow sum to the digit in the attached bulb.
- Arrow tips: A digit on an Arrow tip indicate how many cells in its own region can be seen in the direction pointed at by the arrow, not including the arrow tip itself. Other regions block vision.
- Arrow bulbs: A digit in an Arrow bulb indicate how many cells in its own region can be seen horizontally and vertically from the bulb, including the bulb itself. Other regions block vision.
Click here to play online!
6x6 example: (Click here to play it)
Ratings and comments are very much appreciated. Thank you for playing!
Solution code: The digits in row 2, from left to right
Comments
on 23. November 2025, 18:11 by Qodec
Excellent!
on 23. November 2025, 17:09 by StephenR
Nice one, thanks. I found finishing it off harder than the region building and took the sacrilegious step of removing all my colouring.
on 24. October 2025, 14:26 by ryugane
Awesome puzzle, my first time playing a Chaos Construction.
Very satisfying to solve!
on 22. October 2025, 18:26 by Snookerfan
Fun puzzle with a great ruleset. Well done, thank you!
on 21. September 2025, 22:44 by Hengist
Beautiful flow and logic in the chaos construction in the first half, the regions came together quite nicely. Surprisingly, the difficulty in this one lies not in the chaos construction, but in the sudoku in the second half.
on 24. July 2025, 02:25 by EMCaoloft
Intuitive rules but complex logic -- great fun! Thanks for the 6x6 example, it helped a lot.
on 20. May 2025, 23:26 by delisacus
really enjoyed this
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Glad to hear that, thanks for solving!
on 22. April 2025, 15:04 by Nemefish
Very enjoyable rule set.
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Thank you Nemefish!
on 12. April 2025, 08:45 by erml
Pure joy to solve, thank you!
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Pure joy to read your comment, thank you!
on 11. April 2025, 20:12 by short_c1rcuit
First time doing a chaos construction, loved it!
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First of many I hope, thanks for your kind comment!
on 11. April 2025, 10:43 by timn
the flow was smooth and clear, love every part of this puzzle
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Thank you for your kind comment!
