Logic Masters Deutschland e.V.

split pearsonality / dopealgänger

(Published on 2. November 2025, 23:53 by aqjhs)

I made this puzzle following Scojo's prompt to use Split Pea lines along with difference dots. This time I wanted to have some clues on the note spaces for a doppelgänger grid.

  • Doppelgänger Sudoku:
    • 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.
    • 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.
    • Fill each outer cell with the digit missing from the corresponding row, column or box.
  • Split Pea lines: The digits along a green line sum to a number obtained as a concatenation of the two digits in the circles attached to it, in at least one order. (The sum doesn't include the circled digits.)
  • Digits joined by a white dot have an absolute difference equal to the number on the dot.

Online in Sudokupad

See also:

Solution code: Digits on the column missing a 3, top to bottom.

Last changed on -

Solved by ChinStrap, Sotehr, tuturitu, chrisj50, zeniko, GentlemanJim, loat, MaxSmartable, SIGMA, earthpuzzles, dzamie, Scojo, karlmortenlunna, palpot, MathGuy_12, gaihou, bansalsaab, wullemuus, Hazem-77, hurrdurr, harryb, ralphwaldo1, bittersteel, BHUNTER47, War, Default, Jacob1531, Agent, Isael, Shmartus, RightHandedNeutrino, jordanza
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Comments

on 12. November 2025, 17:13 by War
I usually don't like the math of split pea lines, but this was a very fair puzzle and quite fun actually!

on 6. November 2025, 08:56 by gaihou
A cleverly designed Sudoku! Felt tough at first, but luckily I found a way. Still, it took me nearly 40 minutes to finish. I really love this one.

on 5. November 2025, 20:13 by dzamie
Whew! That was quite challenging, even once I figured out how to somewhat easily fill out most of "box 10" at the bottom right. Admittedly did take me a hot minute to realize how that might affect row/column 10.
Doppelganger is fun to solve! Gotta be real tough to set, I'd imagine...

Last changed on 4. November 2025, 23:26

on 4. November 2025, 23:18 by SKORP17
leider nicht definiert, ob die Summe auch kleiner als 10 sein darf (z.B 08) und ob sich die Summen wiederholen dürfen

Difficulty:4
Rating:100 %
Solved:32 times
Observed:2 times
ID:000PYI

Variant combination Arithmetic puzzle

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Solution code:

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