Logic Masters Deutschland e.V.

Keep your friends close

(Published on 3. April 2026, 17:20 by Killer Joe)

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Hello.

Normal sudoku rules apply.

Every odd digit in boxes 1 and 9 must see an identical digit within a single king's move (in chess).

Every even digit in box 5 must see an identical digit within a single king's move (in chess).

Digits separated by a white dot are consecutive.
Digits separated by a black dot have a 2:1 ratio.
Digits separated by an X sum to 10.

Have fun.

Solution code: Row 9, first 6 digits.


Solved by SKORP17, SirWoezel, Ranrock, tiuhto, cryptique, Aaronomys, TheCutmaster, Neumino, Elliott810, Willkimo, sorryimLate, palpot, Exigus, lianarox, S4K, Qodec, Starlight, bansalsaab, Isael, Bjd, Dentones, Brodie2000, Krisonium, 379475229, CareBaer, AAAAAAAAAAAAAAAAAAA, CHRosenthal, Malakree, mercierus, beansontoast_, Jdt112, zonka, zuzanina
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Comments

on 5. April 2026, 14:25 by Qodec
Once you see it... ah! such a reward!

on 4. April 2026, 22:37 by Exigus
Great construction which gives a very rewarding feeling. Thanks!

on 3. April 2026, 20:42 by Gambit
Superb concept and construction. Tricky tricky though ...but trusting and following the logic eventually bears fruit with a rewarding solve. Thanks for the sharing.

on 3. April 2026, 19:57 by Aaronomys
Brilliant puzzle! It was amazing how everything came apart from one small change in symmetry.

Difficulty:4
Rating:94 %
Solved:33 times
Observed:1 times
ID:000S5S

Variant combination

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Solution code:

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