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 34437 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) 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)
2431
80 %
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
7281
72 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
13261
63 %
unsolvedQuaver (4x4)
by Mr Toffee (on 11. December 2025, 00:01)
4361
73 %
unsolvedRose Puzzle 1
by RailMan (on 13. June 2025, 15:45)
9221
79 %

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The most beautiful puzzles

DescriptionsolvedRating
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
553
100 %
unsolvedDie Kryptos - S02E06: Summenbild Rundweg / Sudoku
by tuace (on 16. March 2018, 15:10)
415
100 %
unsolvedJapanische Höhle mit Irrwisch von den Außerirdischen (2)
by ibag (on 20. April 2018, 00:00)
415
100 %
unsolvedGlückwünsche vom Orion
by Statistica (on 9. July 2019, 00:55)
254
100 %
unsolvedAdventskalender 2020, Finale - Riesenrundweg
by Zzzyxas (on 1. December 2020, 07:00)
295
100 %

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The newest puzzles

DescriptionsolvedRating
newVariantDoku Daily Puzzle: June 9
by Brandy New (today, 12:27)
41
N/A
newZ for Effect
by Mr Toffee (today, 10:49)
122
N/A
newArduous work
by Lithium-Ion (today, 09:12)
122
N/A
newIt's 11
by gwai77 (today, 08:31)
82
N/A
newComing In Hot
by casadega (today, 08:15)
142
88 %

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Latest

New commentsLast solved

Parity Fun 32 (today, 12:53 by Exigus)
Wow, incredible puzzle. Quite hard, I har to put it away a couple of times but...

Sacrosanct (today, 12:40 by Snookerfan)
Not sure what I missed, because it took me three hours of very hard coloring...

Z for Effect (today, 12:33 by VitP)
level 1

Rapuzzle, Rapuzzle, Let Down Your Sausage (today, 12:23 by damo_89)
A worthy successor to one of the puzzles to have ever featured on this...

Chaos Construction Containing Circles Counting Correct Cave Clues (today, 12:08 by Dcs)
Love the unique logic here and how it resolves at the end!

RAT RUN 40: The Big One (today, 12:01 by OldCaptainWZJ)
This one took me a long time and I made many mistakes, but I fought through....

It's 11 (today, 11:58 by Qodec)
Cool how that clicked together. Thanks!

Beautiful (Japanese Sums Sudoku) (today, 11:45 by Playmaker6174)
Quite a fun gift, thanks! I was confused for a bit while before noticing that...

Yes And (today, 11:35 by botteur)
Very fun puzzle where the numbers seem to be dancing around the grid

RAT RUN 40: The Big One (today, 11:33 by LunchEntity)
Vitaminz has, let's say, different ideas about what's difficult? That said,...

today, 13:00
Arduous work by alx

today, 12:59
Vivid XV by reznov7

today, 12:59
Treasure Planet by thebriskt

today, 12:59
RAT RUN 40: The Big One by Silverscree

today, 12:59
Crack the Walnut by ThatSuper

today, 12:58
Yes And by rehoo885

today, 12:57
Midstream by Bos

today, 12:57
Hang Glider by shivvyvic

today, 12:57
Wrapper by jennyaa

today, 12:54
Large Cages Only, Please by Counterfeitly

Show complete list

Show complete list


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