Logic Masters Deutschland e.V.

The Puzzle Portal

Please note: The creation and use of multiple accounts is not desired in the Portal. (Exceptions are only permitted for technical reasons or with the consent of the association Logic Masters Deutschland.) We reserve the right to block users who violate this rule.

The puzzle portal is a collection of puzzles created by puzzle enthusiasts from all over the world. At the moment the portal contains 36971 puzzles.

If this is your first visit to the puzzle portal we recommend that you take a tour to get an overview of the portal contents.

We have put together a collection of puzzles suitable for beginners. These contain solution hints - and we hope that these puzzles will help you getting started.


To help you getting started navigating the portal we have put together some puzzle collections.

Puzzle typesPuzzle collectionsPuzzle authors
Sudoku Easy and nice Richard
Slither link Average and nice Luigi
ABC-tje Difficult and nice berni
Pentomino puzzles Often solved and nice
Mystery puzzles

10-in-9 (Variant) 159 (Variant) A 38 ABC Box ABCD ABCtje Achtelwenden Akari Anglers Anti-Diagonal (Variant) Anti-Factor Lines (Variant) Anti-Knight (Variant) Anti-Queen (Variant) Aquarium Arrows Arrows (Variant) Battenburg (Variant) Battlefield (Variant) Battleships Between (Variant) Binairo (Variant) Brick Wall Broken 159 (Variant) Candles Capsules Carpet (Variant) Castle Wall Cave Chaos Construction (Variant) Checkered Fillomino Clone (Variant) Compass Compass (Variant) Congruence Loop Consecutive (Variant) Consecutive Pairs (Variant) Coral Country Road Cross the Streams Crossword Puzzle Diagonal (Variant) Difference (Variant) Disjoint Groups (Variant) Distance (Variant) Dominion Domino Search Dots (Theme) Double Trouble (Variant) Earthquake (Variant) Easy as ABC Entropy (Theme) Equality Even/Odd (Variant) Extra Regions (Variant) Fibonacci (Theme) Fillomino Fortress (Variant) Friendly (Variant) Galaxies Geradeweg German Whispers (Variant) Greater Than (Variant) Hakyuu Hashiwokakero Heyawake Hitori Irregular (Variant) Japanese Sums Kakuro Killer (Variant) Knight Move (Theme) Kropki Kropki Pairs (Variant) Kuromasu Kurotto Landvermessung Laser Letter Puzzle Lighthouses LITS Little Killer (Variant) Lockout Lines (Variant) Logical Magic Labyrinth Magic Square Magnets Masterword Masyu Mathrax Maximum (Variant) Median (Variant) Mid-loop Minesweeper MinMax (Variant) Modifier Cells (Variant) Moon-or-Sun Myopia Nanro Neighbours Non-Consecutive (Variant) Non-Touching (Variant) Nonogram Norinori Number Link Nurikabe Nurimisaki Outside (Variant) Palindrome (Variant) Parity (Theme) Parity Party (Variant) Pathway (Variant) Pentominous Pentopia Position Sums (Variant) Primes (Theme) Product (Theme) Products Pyramid Quadruple (Variant) Quattroquadri (Variant) Railroads Ratio (Variant) Ratio Pairs (Variant) Region Sum Lines (Variant) Regional Sums Remote (Variant) Renban (Variant) Roller Coaster Roman Numerals (Variant) Roman Sums Rossini (Variant) Samurai (Variant) Sandwich (Variant) Sashigane Shakashaka Shikaku Shimaguni Skyscraper Clusters Skyscrapers Slingshot (Variant) Slitherlink Smashed Sums Snake Snake (Variant) Star Battle Stostone Sudoku Suguru Tapa Taxicab (Variant) Tents Thermo (Variant) Thermometers Umbrellas Underground Urnenrätsel Variables Tapasyu Windoku (Variant) X-Sums (Variant) XV (Variant) XV Pairs (Variant) XY-Differences (Variant) Yajilin Yin and Yang

Enjoy browsing the portal!

If you are interested in the recent growth of new puzzles, see the discussion in our forum (scroll down to see comments in English).

The easiest puzzles

DescriptionsolvedRating
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
8851
73 %
unsolvedKropki Quadruple: Tutorial (1/4)
by BlueToast001 (on 18. May 2026, 17:00)
4701
79 %
unsolvedVol.5 Kropki #17
by Adrian Klausen (on 1. September 2026, 17:30)
2491
63 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
14631
63 %
unsolvedPaperclip (4x4)
by Mr Toffee (on 18. January 2026, 15:35)
6241
75 %

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The most beautiful puzzles

DescriptionsolvedRating
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
573
100 %
unsolvedDie Kryptos - S02E06: Summenbild Rundweg / Sudoku
by tuace (on 16. March 2018, 15:10)
435
100 %
unsolvedJapanische Höhle mit Irrwisch von den Außerirdischen (2)
by ibag (on 20. April 2018, 00:00)
425
100 %
unsolvedGlückwünsche vom Orion
by Statistica (on 9. July 2019, 00:55)
264
100 %
unsolvedAdventskalender 2020, Finale - Riesenrundweg
by Zzzyxas (on 1. December 2020, 07:00)
305
100 %

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The newest puzzles

DescriptionsolvedRating
newBrain Waves
by Nemefish (today, 11:59)
33
N/A
newSpaghettification (11x11 deconstructed + fillomino)
by Dr Logic (today, 11:24)
04
N/A
new5 keys
by gwai77 (today, 10:00)
92
N/A
newSword From The Stone (Killer sudoku)
by sujoyku (today, 10:00)
113
N/A
newOrthogonal German Whisper Line Arrows
by pagedo (today, 08:36)
101
N/A

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Latest

New commentsLast solved

66th Training Squadron (today, 14:08 by Rawcoder)
The "Three in the Corner"-Clue is not needed for solving this sudoku.

Hitbox Crossroads - Miracle Sudoku (today, 13:58 by lmtyy)
True miracle.

Oil, Water, Knights 2 (today, 13:34 by GabyUnalaq)
This one took a while: color parity, then assign color for each digit (which...

Bonus Edition: Superiority (Greatest Cell Lines Sudoku) (today, 13:31 by emoney1374)
Fun puzzle!

Bonus Edition: Superiority (Greatest Cell Lines Sudoku) (today, 13:18 by udukos)
Very nice!

Mind the Edge ! #0 (today, 13:11 by David Manzo)
Super fun puzzle, loved every second of it

Dutch Flat Mates: Position Sums (GoodCity collab) (today, 13:04 by Franjo)
Thank you very much for creating and sharing another great DFM-puzzle. Tricky!

4x6x6 Kombi Experiment Nr. 8 (today, 13:04 by WasabiKoala)
Super!

Orthogonal German Whisper Line Arrows (today, 12:52 by mijq)
Thanks, enjoyed the orthogonal German whispers

Tower (today, 12:40 by DulP)
00:14:55

today, 14:10
66th Training Squadron by cornuto

today, 14:09
Caged Lightning by Hiku

today, 14:09
Sword From The Stone (Killer sudoku) by mihel111

today, 14:08
Alphabet Cereal by zyldar

today, 14:08
Killer Rows by Exigus

today, 14:08
66th Training Squadron by Rawcoder

today, 14:08
HI by mijq

today, 14:07
Fog of War #45 by trencaclosques

today, 14:06
Quartet by P12345

today, 14:06
Hold bracing by JustDoggy

Show complete list

Show complete list


84 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
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