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 27554 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) 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 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) Shakashaka Shikaku Shimaguni Skyscraper Clusters Skyscrapers Slingshot (Variant) Slitherlink Smashed Sums Snake Snake (Variant) Star Battle 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
unsolvedLook At What You're Saying
by PhoenixAki (on 9. April 2025, 10:04)
2361
75 %
unsolvedEqual Loop / Evenly Divided Loop (Puzzle 4)
by OldCaptainWZJ (on 30. April 2025, 22:02)
581
72 %
unsolvedSpeedy logic
by Azure (on 6. April 2025, 12:24)
2601
69 %
unsolvedBeginner Palindrome
by wuc (on 8. February 2024, 20:07)
9091
75 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
8411
63 %

Show complete list

The most beautiful puzzles

DescriptionsolvedRating
unsolvedRundweg Family Photo
by pokerke (on 14. February 2011, 00:57)
795
100 %
unsolvedHallig-Rundreise
by tuace (on 13. April 2015, 00:47)
445
100 %
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
473
100 %
unsolvedJapanische Höhle mit Irrwisch von den Außerirdischen (2)
by ibag (on 20. April 2018, 00:00)
405
100 %
unsolvedGlückwünsche vom Orion
by Statistica (on 9. July 2019, 00:55)
254
100 %

Show complete list

The newest puzzles

DescriptionsolvedRating
newJanus (Chiaroscuro + U-Bahn)
by sfushidahardy (today, 01:25)
45
N/A
newChewbacca, Wookie
by Mr Toffee (today, 00:28)
82
N/A
newModulus Operandi
by jamncheez (yesterday, 23:15)
33
N/A
newPoint and Sweep [Duality]
by timotab (yesterday, 22:16)
92
N/A
newYinYin Yang
by Hunsar (yesterday, 22:15)
53
N/A

Show complete list

Latest

New commentsLast solved

Janus (Chiaroscuro + U-Bahn) (today, 05:13 by KNT)
can only echo the other comments - very good!

YinYin Yang (today, 03:50 by VitP)
another fine yy puzzle

Noah's Ark (today, 02:41 by thebriskt)
This is a low-key masterpiece. It did not yield easily for me, but it...

Unique Under the Fog 5.0 (today, 02:36 by by81996672)
Perhaps it's because I've solved too many puzzles. I think this break is quite...

Janus (Chiaroscuro + U-Bahn) (today, 02:27 by MaizeGator)
Congratulations to the champion! Hopefully this does not signal the end of...

Visibility Issues (today, 02:17 by shartus)
Great puzz, and especially loved the first third

Confluence (today, 01:46 by SudokuHero)
Super hard to grasp the ruleset, but once you get it, it is so fun

Janus (Chiaroscuro + U-Bahn) (today, 01:36 by Agent)
Awesome puzzle, very good break-in and ending, it was always rewarding to make...

Janus (Chiaroscuro + U-Bahn) (today, 01:35 by dumediat)
This was an excellent puzzle, and certainly fitting for a finals match. Thank...

Wannabe assassin (today, 00:31 by sujoyku)
Incredible puzzle with an superb use of the modifiers. Thank you for setting...

today, 05:17
just 8 by MarkSud

today, 05:16
B1 Battle Droid by HKtrying2

today, 05:15
Colorful Three's by asver

today, 05:14
Learn The Alphabet Snackdoku (Volume 1) by bereolosp

today, 05:14
Way Too Late at Knight by NEWS

today, 05:14
Suguru Chaos Deconstruction #2: Kropki Edition by JDP678

today, 05:13
Janus (Chiaroscuro + U-Bahn) by KNT

today, 05:12
? Marks the Spot by forsen

today, 05:12
XV*-O-*7 by TroublesomeOrca

today, 05:11
Sudoku Pinball Machine by Beliat

Show complete list

Show complete list


49 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
NEWS (23), pepu273 (12), asver (10), doomedmageknight (10), jcg5a (10), Jastucreudo (9), lybon (6), volleywolley (5), Llamaths (4), Agent (3), augsod (3), foggybrume (3), HKtrying2 (3), Jellymantis (3), jsxft (3), MarkSud (3), mcsmauingf (3), TroublesomeOrca (3), Yaoning (3), annnz (2), Calesch (2), JDP678 (2), KNT (2), matiasv5 (2), pseudoku (2), SincereEngineer (2), Beliat (1), bereolosp (1), forsen (1), Ganbatte (1), idanz (1), kyuquu (1), mattnburris (1), SeveNateNine (1), AkashG23 (0), askaksaksask (0), certifiedpaintfreak (0), Chester_Aurion (0), isajo4002 (0), konklone (0), Nordy (0), pagedo (0), Phase Queen Rachel (0), PsychedelicCreature (0), rpearl (0), sigge (0), terrible_casserole (0), wgwgsa (0), Will Power (0)

Login