Logic Masters Deutschland e.V.

Clockwork Yajilin: Orientation

(Published on 14. February 2024, 01:40 by wisty)

This is the first in a series of Yajilin puzzles that I've been developing! :>
Thank you so much everyone who helped out with testing, especially filuta and chameleon for your constructive feedback!

Penpa+

• Shade some white cells such that no two shaded cells are orthogonally adjacent, and draw a loop that travels orthogonally through all unshaded white cells without intersecting itself or crossing bold borders.
• Clues marked with arrows give the sum of all shaded cells in the given direction, or directions combined, where a cell's value is 1 if it is inside the loop and -1 if it is outside the loop.
• Gears visited by the loop must alternate inside and outside (or vice versa). A gear is considered visited when the loop travels from a cell not touching that gear to a cell touching that gear and no other gears, either directly or through a cell touching multiple gears.

Here is an example of how the rules work:

Clockwork Yajilin series:
• Orientation ◄
Parallel Motion
Parity Point
Challenger
Blackout Cipher

Solution code: using + and - for inside and outside shaded cells, T for a turn and S for a straight segment: row 5 followed by column 6 (ignore given grey cells)

Last changed on on 16. January 2026, 23:01

Solved by Agent, Myxo, Bellsita, RJBlarmo, appleponycmh, The Book Wyrm, Mr_tn, zzw, Christounet, dumediat, Dandelo, CHalb, KNT, webato, Jesper, filuta, Lizzy01, Raistlen, Mark Sweep, agueybana, CJK, Piatato, ... SeveNateNine, isajo4002, Paletron, Nell Gwyn, karlmortenlunna, LeiZ123321, jkuo7, cdowell, petecavcc, sfushidahardy, puzzler05, chameleon, nottabird, Andrewsarchus, Donatello_86 , wullemuus, Calesch
Full list

Comments

on 30. March 2025, 21:18 by Donatello_86
Very fun and enjoyable, cool combination of constraints

on 3. November 2024, 09:14 by sfushidahardy
Love the gear rule!

on 27. May 2024, 04:58 by wisty
clarified solution code

Last changed on 27. May 2024, 04:59

on 27. May 2024, 02:47 by marsh
Great puzzle, took me longer than anticipated. I recommend to update the solution code explanation to "using + and - for inside and outside shaded cells,..."
_____________
thanks for the suggestion! updated the solution code. glad you enjoyed the puzzle!

on 11. April 2024, 01:42 by Wessel Strijkstra
What a joy to discover this series, great idea and very cute starting puzzle :D Looking forward to the rest!

on 19. March 2024, 22:26 by wisty
added links to full series

on 1. March 2024, 16:51 by szabog
Thank you, interesting idea.

on 21. February 2024, 06:44 by ONeill
cool :)

on 18. February 2024, 21:23 by Piatato
Lovely!

on 17. February 2024, 15:14 by Jesper
Very nice, looking forward to more puzzles

on 17. February 2024, 14:26 by wisty
reworded rule regarding touching gears. thank you KNT for raising the error to my attention, sorry it made it past the testing phase

on 14. February 2024, 17:15 by CHalb
A Yajilin series is a very good idea :).

on 14. February 2024, 14:29 by dumediat
I love this rule set!! Such a fantastic creation, and the visuals are absolutely top notch. Thank you so much for sharing, I can't wait to see more of these! :D

on 14. February 2024, 13:24 by Christounet
Very nice introduction puzzle ! Figuring out the gear rule was not obvious for me but it was good fun after that. Also, very nice visual with the mechanical design. Reminded me of a comics called "Cités obscures". Thanks :)

on 14. February 2024, 11:49 by zzw
Super cool puzzle to start the series off! The rules all work very nicely together.

on 14. February 2024, 01:58 by Myxo
Wonderful puzzle, thank you :) Looking forward to trying the others!

Difficulty:2
Rating:95 %
Solved:63 times
Observed:4 times
ID:000GYQ

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Solution code:

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