Logic Masters Deutschland e.V.

Doppelgänger Killer 1-25

(Eingestellt am 2. Dezember 2025, 17:15 Uhr von SennyK)

Doppelgänger Killer 1-25

Today we have puzzle created for Scojo's prompt, as redeemed by LMDemasi, to create a fairly approachable doppelgänger puzzle :-)
I hope you will enjoy and I would be really grateful for all the comments and ratings.

Normal Doppelgänger Sudoku rules apply:
• Fill each cell of the main 9x9 grid such that every row, column and 3x3 box contains a 0 and eight different digits from 1-9
• Fill each outer cell with the digit missing from the corresponding row, column or box
• No two rows, no two columns and no two boxes may be missing the same digit
• For each 0 in the grid, the digits missing in its row, column and region must be three different digits

Killer: Digits in a cage may not repeat and sum to the total given.

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
★★☆☆☆: 3, 7, 8, 10, 11, 13, 14, 16, 18, 20, 24, 25
★★★☆☆: 9, 19, 21, 22

Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★★: Why-Why?

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
★★★☆☆: Broken Flashlight in the Dark

Pencil Puzzle/Sudoku Hybrid:
★★☆☆☆: Masyu (Short) Sudoku
★★★☆☆: Tetromino Sudoku

Various Puzzles:
☆☆☆☆: Blown Fuses in Electrical Installation, Let Me Introduce Myself, French Wrench
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25
★★★★: Liars. Liars Everywhere.

Lösungscode: Row missing 6 from left to right (9 digits).

Zuletzt geändert am 12. Dezember 2025, 23:21 Uhr

Gelöst von ole-1995a, claymategirl, SKORP17, Kafkapharnaum, jkuo7, zuzanina, illegel, lmdemasi, h5663454, aqjhs, Scojo, Flinty, gdc, Black_Doom, Piatato, fthompson, MaxSmartable, Hrothan, tuturitu, ikaikaw, brimmy, Counterfeitly, woody, nyxie, SIGMA, Machiavelli, Shmartus, Vodakhan , Snookerfan, Cascade, bellaquill, Crulamin
Komplette Liste

Kommentare

am 3. Dezember 2025, 23:03 Uhr von Piatato
Nice and smooth!

am 3. Dezember 2025, 09:55 Uhr von SennyK
Difficulty amended to 3 according to feedback.

am 3. Dezember 2025, 04:31 Uhr von Kafkapharnaum
A bit of a shot in the foot with the 2/5 on this one, as while hopefully, after having existed for close to 5 years and given birth to well over 60 puzzles now, this variant can hardly be called “completely new”, and while this puzzle is indeed among the more approachable ones of this kind, it *does* seem to assume a very good command of the track cells, which beginners would not have…
That said, the use of track cell clues was really good, and it was really fun seeing them almost all filled while the main grid was still like 3/4 empty, and just as fun unraveling after that – really enjoyed the puzzle, thanks for sharing! :D

am 3. Dezember 2025, 01:36 Uhr von VitP
this really isn't "approachable".
the fact that it's a completely new variant should be a clue. nobody will have ANY experience on how to deal with this. level 2 AT LEAST, just by existing, and in the event, at least level 3.

Schwierigkeit:3
Bewertung:94 %
Gelöst:32 mal
Beobachtet:1 mal
ID:000QDN

Variantenkombination Online-Solving-Tool

Lösung abgeben

Lösungscode:

Anmelden