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 21050 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 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 Carpet (Variant) Castle Wall Cave Chaos Construction (Variant) 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) 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 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 Laser Letter Puzzle Lighthouses LITS Little Killer (Variant) Lockout Lines (Variant) Logical Magic Labyrinth Magic Square Magnets Masterword Masyu Mathrax Maximum (Variant) Minesweeper MinMax (Variant) Nanro Non-Consecutive (Variant) Non-Touching (Variant) Nonogram Norinori Number Link Nurikabe Palindrome (Variant) Parity (Theme) Parity Party (Variant) Pathway (Variant) Pentominous Pentopia Position Sums (Variant) Primes (Theme) Product (Theme) Products Pyramid Quadruple (Variant) Railroads Ratio (Variant) Ratio Pairs (Variant) Region Sum Lines (Variant) Regional Sums Remote (Variant) Renban (Variant) Roller Coaster Roman Numerals (Variant) Roman Sums Samurai (Variant) Sandwich (Variant) Shakashaka Shikaku Shimaguni Skyscraper Clusters Skyscrapers Slingshot (Variant) Slitherlink Smashed Sums Snake Snake (Variant) Star Battle Sudoku Suguru Tapa 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
unsolvedBeginner Palindrome
by wuc (on 8. February 2024, 20:07)
3041
74 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
3041
60 %
unsolvedPlacement Puzzle 1
by karencarpenter (on 26. December 2021, 14:42)
9121
55 %
unsolvedEasy Doubles, Thermo Arrow
by SimplePurpleFrog (on 17. October 2023, 18:20)
5791
77 %
unsolvedKnickwege invers für Anfänger (1) mit Lösungshinweisen
by hopppe (on 17. March 2010, 15:00)
5261
44 %

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The most beautiful puzzles

DescriptionsolvedRating
unsolvedRundweg Family Photo
by pokerke (on 14. February 2011, 00:57)
735
100 %
unsolvedHallig-Rundreise
by tuace (on 13. April 2015, 00:47)
415
100 %
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
463
100 %
unsolvedJapanische Höhle mit Irrwisch von den Außerirdischen (2)
by ibag (on 20. April 2018, 00:00)
405
100 %
unsolvedAdventsportale, Teil 4
by pirx (on 23. December 2018, 12:00)
455
100 %

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The newest puzzles

DescriptionsolvedRating
newAcid Arrow
by oceansellaven (today, 20:23)
221
95 %
new6x6 Loop-Pack: Volume 3 (Region Sums, Whisper, Extra Regions)
by gdc (today, 20:17)
22
N/A
newKillersaddles
by Schma (today, 18:10)
22
N/A
newNot nice at all (fog)
by SudokuFan (today, 18:07)
411
47 %
newShifter Lines 116: A multitude of constraints (without fog)
by gUBBLOR (today, 16:59)
82
N/A

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Latest

New commentsLast solved

Slingshot Skirmish 1 - First Strike (today, 23:06 by QuiltyAsCharged)
This was great! There are some really clever ideas in this puzzle. Even though...

Acid Arrow (today, 23:01 by antiknight)
Cool break-in, but the puzzle becomes really easy after that.

Difference (today, 22:59 by Christounet)
Crazy idea ! Makes a difference ! Thanks :)

Sketch (Colourful Killers) (today, 22:54 by Phistomefel)
Very cool idea and logic. Thanks a lot!

Keystone Cops Pointer Arrows (today, 22:46 by antiknight)
Great puzzle and idea!

Ambiguous Slitherlink (today, 22:29 by Christounet)
Great stuff ! There is indeed a reminiscence of a famous puzzle here, both in...

Inner Harmony (today, 22:12 by QuiltyAsCharged)
This has a lovely simplicity and balance to it. When you find how everything...

Acid Arrow (today, 22:09 by EmailWizard)
Had the absolute pleasure of test solving this. Lovely puzzle with a very nice...

Get out of my corner (today, 21:55 by mezkur7)
Sudokupad link w/solution:
https://sudokupad.app/d79ptcv2hx

Colorado 11 (today, 21:27 by Finni)
Always love a colouring puzzle, thank you! I had a lot of fun solving it :D

today, 23:08
Mods by josemadre

today, 23:05
Not nice at all (fog) by Benitora201

today, 23:04
Enter the Twilight Zone by yusuf17

today, 23:04
Regional Differences by danroberts

today, 23:02
Superfuzzy Arrows by coolguy14

today, 23:02
Not nice at all (fog) by snakess

today, 23:02
Not nice at all (fog) by ludvigr04

today, 23:01
Slingshot Skirmish 1 - First Strike by QuiltyAsCharged

today, 23:01
[Fog of War Series] 3-2: Sequel to Portals by halakani

today, 23:01
6x6 Loop-Pack: Volume 3 (Region Sums, Whisper, Extra Regions) by Krokant

Show complete list

Show complete list


76 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
SKORP17 (28), josemadre (14), Askloomok (12), nyxie (12), halakani (8), M8tyw31 (8), yusuf17 (8), coolguy14 (7), Raistlen (6), rexxk (6), sarabtx (6), kelly (5), Agent (4), Christounet (4), H.I. McDunnough (4), Krokant (4), NRB (4), QuiltyAsCharged (4), snakess (4), spamus (4), ThePedallingPianist (4), x3y2z1 (4), abihummel (3), Cliff (3), danroberts (3), Jesper (3), antiknight (2), kublai (2), Percy (2), Schma (2), Abbott Abbott (1), Benitora201 (1), Beronz (1), Chikengrubbi (1), Fizz (1), HighEagle (1), JFisherman (1), KlausRG (1), ludvigr04 (1), Mad-Tyas (1), micjo (1), mthunter26 (1), oceansellaven (1), Playmaker6174 (1), sashadesa (1), sherrick (1), Starlight (1), sujoyku (1), timotab (1), arbitrary (0), Bisbi (0), brainshwoop (0), daiswest (0), firespire (0), Gnombat (0), Ikaron (0), Imparabel (0), Imperial Marcher (0), jange (0), Johannes Quack (0), juventino188 (0), kaw (0), LaJope (0), lost creativity (0), Matti64 (0), Moritat (0), MysticMan (0), nikkomachiavelli (0), Nr.2 (0), Oddlyeven (0), RickiFerrara (0), SandraNala (0), SudokuFan (0), Tulrak (0), vfig (0), Vodakhan  (0)

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