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 37224 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
unsolvedKropki Quadruple: Tutorial (1/4)
by BlueToast001 (on 18. May 2026, 17:00)
4951
78 %
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
9001
73 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
14831
63 %
unsolvedPaperclip (4x4)
by Mr Toffee (on 18. January 2026, 15:35)
6411
75 %
unsolvedVol.2 Killer #26
by Adrian Klausen (on 26. August 2026, 17:30)
2171
76 %

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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)
435
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)
315
100 %

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The newest puzzles

DescriptionsolvedRating
newSquare Up! #3
by wafflefries (today, 19:11)
62
N/A
newhave you seen this domino
by Hempelson Tamsova (today, 19:03)
13
N/A
newSudo-Connections
by ul-Rhymm (today, 17:42)
62
N/A
new3 Vs: Vermeer Venn Visuals
by gadgetgreen (today, 17:14)
31
N/A
newZorg
by Blobz (today, 16:00)
381
92 %

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Latest

New commentsLast solved

Duplicitous Arrows (today, 20:37 by Adrian71)
What an absolute joy to solve! Huge compliments on the brilliant setting

German Whisper Lies (today, 20:36 by sujoyku)
Awesome puzzle! Now let me see the specialist to cure my lying addiction....

You Spin Me Right Round (today, 20:31 by PinkNickels)
Pretty sweet puzzle! Deserves more solves!

Duplicitous Arrows (today, 20:16 by garomo)
One of the toughest puzzles I ever solved, but very rewarding in the end! 5*...

Dot dot dot... (today, 20:11 by MrTescos)
Yk what, fair play it took me like 10 mins to figure out the end after reading...

Sudo-Connections (today, 20:05 by emoney1374)
Creative idea! Fun solve

have you seen this domino (today, 20:04 by StefanSch)
The puzzle is nice.
But I don not like the solution code. I needed some...

Addling Goose Eggs (today, 19:26 by edstervedster)
Thank you for the solve and the kind words, Snookerfan!

BYO Samurai (today, 19:24 by Jooshy)
One of the hardest puzzles I've ever solved, the fact you put it as 4 stars is...

Whisper Loop Chaos Construction #2 (today, 19:23 by Snookerfan)
Incredible puzzle! I am amazed that this even solves. A very rewarding and fun...

today, 21:01
Staples by garage

today, 21:00
Square Up! #3 by basilicon

today, 21:00
Every Cage Contains a 2 by waldomiro

today, 20:59
Sherbet Scoop by Photyne

today, 20:59
Green Traquenard by Jorava

today, 20:58
Classic Fogdoku, Revisited by kangilias

today, 20:58
Geeky Ghost And The Fog by jgarber

today, 20:58
Between the Fog by littlebear

today, 20:57
Geeky Ghost And The Fog by josemadre

today, 20:56
Geeky Ghost And The Fog by SKORP17

Show complete list

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