Logic Masters Deutschland e.V.

Erica 49 (German Charrows Edition)

(Eingestellt am 30. Juli 2026, 15:45 Uhr von SennyK)

Erica 49 (German Charrows Edition)

I am very happy to present the first Chaos Construction Erica! :-)
According to testers and me it might be a high 4*.
I hope you will enjoy and I would be really grateful for all the comments and ratings.

Chaos Construction: Divide the grid into nine orthogonally connected nine-cell regions. Place the digits 1-9 exactly once in each row, column, and region.

German Arrows: A digit in a cell with a green arrow counts exactly how many cells in the indicated direction differ from it by at least 5.

Arrow Regions: A cell with a green arrow must be in the same region as all cells in the indicated direction that differ from it by 4 or less, and it cannot be in the same region as any cell in that direction that differs from it by at least 5.

German Diamonds: A digit in a cell with a green diamond must differ by at least 5 from any orthogonally adjacent cell that shares its region.

SudokuPad Link

If you liked this puzzle, I recommend trying out my other puzzles:

The Erica Series:
☆☆☆☆: 1, 2, 4, 5, 6, 12, 15, 17, 23, 26, 27, 31, 32, 46, 47
★★☆☆☆: 3, 7, 8, 10, 11, 13, 14, 16, 18, 20, 24, 25, 29, 30, 34, 35, 38, 40, 42, 45
★★★☆☆: 9, 19, 21, 22, 28, 33, 37, 38, 41, 44, 45, 48
★★★★: 36, 39, 43

German Sums Series:
★★☆☆☆: 1, 3
★★★☆☆: 2, 4, 5, 6

Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★: Aim High! (YY)
★★★★★: Why-Why?, Happ(Y) Birthda(Y), ChinStrap!, Growing YY in the Fog Puzzle Pack

Modifiers:
☆☆☆☆: Borrower
★★★☆☆: Modified Flat Mates, Neighbourhood Watch
★★★★★: Mad Delirium Puzzle: Remarkably Beyond Crazy [16x16], Top Right Boi [CC], There's Strength in Numbers

Fog of War:
☆☆☆☆: Erica 12, Erica 17
★★☆☆☆: It's What You Do in the Dark That Puts You in the Light, Find It All, What the Fog?, Erica 20, Erica 29
★★★☆☆: Broken Flashlight in the Dark

Pencil Puzzle/Sudoku Hybrid:
★★☆☆☆: Masyu (Short) Sudoku, Heyawake Sudoku (Given Regions), Way Too Hot, Are You? [Hotaru Beam], Hey, What's Up? [Heyawake]
★★★☆☆: Tetromino Sudoku
★★★★: Made in the Shade (Heyawake CC)
★★★★★: Heyawake Sudoku

Pairometers:
★★☆☆☆: Pairometers (6x6 Pack 1), Pairometers
★★★☆☆: Pairometers (6x6 Pack 2), Pairometers (6x6 Pack 3)

Various Puzzles:
☆☆☆☆: Blown Fuses in Electrical Installation, Let Me Introduce Myself, French Wrench, GAS Regional Constraints, Quadsumes, Snack Latin Arrows, Sarah
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers, (Not so) Little Killers, Indexing Sword, Larna's HoneyMoon, Ascending Sums
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25, Region Whisper Line, Christmas Chaos
★★★★: Liars. Liars Everywhere., Sandwiched XV Squishmates, Fireworks 2025, (Yin)German Pairrows, Little Galaxy, 2x Solution
★★★★★: Any NEWS?, Potentially Pointer, Possibly Parity Party

Lösungscode: Third (3rd) column of the grid from top to bottom (with the symbol "/" marking borders between regions, e.g., 1/23/456/78/9).

Zuletzt geändert Gestern, 14:43 Uhr

Gelöst von PrissyP, EdTheAlchemist, ShuffBeeeell, Alce, NicoD, marcmees, beansontoast_, Arheus, Elliott810, ChinStrap, Sotehr, gdc, MathGuy_12, aqjhs, flyjim, bansalsaab, h5663454, steeto, Saltensity, ... Malakree, Sherif, Vodakhan , BlazingSnow, sacker, prodigis, avishai, peacherwu2, Srinidhi Kabra, Chaka, karen_birgitta, hollowpineapple, haoju, mateo99, NEWS, Bathroomking, palpot, 0123coolkid
Komplette Liste

Kommentare

Heute, 10:39 Uhr von Chaka
Very brutal but also lots of fun!

Heute, 07:17 Uhr von Srinidhi Kabra
Wonderful puzzle! The start is incredibly smooth and gratifying, although near the end it got tedious. Regardless, a great puzzle.

Gestern, 19:01 Uhr von Sherif
Rules were very confusing on the road, 4* for me

Gestern, 15:14 Uhr von vukkarak
I liked it, tough this is the type of puzzle where I read the instructions 20 times and still mess it up.

Gestern, 14:45 Uhr von amirs
That was tough! But very enjoyable and satisfying

Gestern, 10:59 Uhr von Myxo
Awesome!

Gestern, 05:48 Uhr von aqjhs
¡ajua!

am 30. Juli 2026, 23:39 Uhr von Arheus
That is an absolutely sensational puzzle. When I first saw the grid I was like "that cannot possibly have a unique solution, chaos construction to boot!" But four hours later I am very proud to have finished it. This puzzle must appear on CTC. Many congratulations!

Zuletzt geändert am 30. Juli 2026, 22:32 Uhr

am 30. Juli 2026, 22:31 Uhr von marcmees
Nice puzzle. smooth start but gets a bit tougher near the end. 4* Enjoyed that. Thanks

Schwierigkeit:5
Bewertung:97 %
Gelöst:43 mal
Beobachtet:0 mal
ID:000U43

Variantenkombination Online-Solving-Tool

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