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 28860 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) Sashigane 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
unsolvedRose Puzzle 1
by RailMan (on 13. June 2025, 15:45)
3071
80 %
unsolvedLook At What You're Saying
by PhoenixAki (on 9. April 2025, 10:04)
4391
76 %
unsolvedSpeedy logic
by Azure (on 6. April 2025, 12:24)
4261
70 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
9541
63 %
unsolvedBeginner Palindrome
by wuc (on 8. February 2024, 20:07)
10091
75 %

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The most beautiful puzzles

DescriptionsolvedRating
unsolvedRundweg Family Photo
by pokerke (on 14. February 2011, 00:57)
815
100 %
unsolvedHallig-Rundreise
by tuace (on 13. April 2015, 00:47)
465
100 %
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
503
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 %

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The newest puzzles

DescriptionsolvedRating
newSudoku Variants Series (434) - Slow Thermos
by Richard (today, 04:29)
02
N/A
new"I'd Like One with Everything"
by kingoffries (today, 03:45)
15
N/A
new[TSL] [S1T7] Crossbow [Multiple Variants]
by 3good5you (today, 01:55)
34
N/A
newAUGUST
by DocLogic (today, 01:08)
62
N/A
newSum Neighbors
by FullDeck-Missing (today, 00:32)
04
N/A

Show complete list

Latest

New commentsLast solved

Checkerboard Speed Run (today, 04:46 by e401)
33:53. Perhaps pencil marking everything was not the way to go. Thanks for the...

Target Practice (today, 04:37 by cozmic72)
What a marvelous puzzle. Some very clever turns along the solve path that will...

Sum Neighbors (today, 03:56 by Richard)
Hi,
You were right! This type appeared under the name 'Consecutive Sums'...

"I'd Like One with Everything" (today, 03:54 by Andrewsarchus)
I really love this puzzle! The solve is surprisingly smooth for such a crazy...

German Whisper Ring (today, 02:05 by Fisherman)
Economic. Very logical. See hidden comments for more.

A Mixed Finale (today, 01:44 by Exigus)
Approachable but the number of clues made them a bit hard to keep track of...

Déjà Vu (today, 01:19 by sujoyku)
Awesome pack! Thank you, Scojo!

Quoits (today, 01:15 by AlexRaetselt)
A very nice plot twist in the end!

Pinkline Rhythm (today, 00:19 by Hogger8)
I think this was not as hard as others make out. I liked it. It was a high/low...

Could Mean Everything (yesterday, 23:44 by ViKingPrime)
I found this a bit more challenging than expected but well worth the effort -...

today, 04:49
Isamook's 23rd Puzzle by Kigor

today, 04:47
Beehive by tiredsudoku

today, 04:46
Antimatter by QuiltyAsCharged

today, 04:45
Mewtated DNA by Zedarflight

today, 04:45
Easy Emeralds by scushuaishuai

today, 04:45
Tip of the Iceberg (fog) by kingofthekows

today, 04:42
Apple sauce by johnsudoku

today, 04:42
13 or 14? by tgstar

today, 04:41
Latent Entanglement by asver

today, 04:40
RAT RUN 3: Double Dutch by PrincessSophia

Show complete list

Show complete list


50 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
h5663454 (9), Kigor (9), Dermerlin (8), asver (7), by81996672 (7), jkuo7 (7), paranoid (7), Luke7614 (6), QuiltyAsCharged (6), scushuaishuai (5), tgstar (5), Winterbeard (5), Zedarflight  (5), tiredsudoku (3), Beliat (2), Bjd (2), Bulkystapler (2), cozmic72 (2), johnsudoku (2), SeveNateNine (2), Black_Doom (1), cannonmatthews (1), Djokan (1), etoler (1), Jessbelle (1), kingofthekows (1), kowareta (1), logiclox (1), PrincessSophia (1), snowden (1), SXH (1), Yawnus (1), Bob-Z (0), Chefofdeath (0), e401 (0), ebiggie (0), Fenners (0), FullDeck-Missing (0), GauravM (0), Gobser (0), gxorgx (0), Jeet Sampat (0), Martina (0), maxwork1113 (0), Neokart (0), Ridhwan (0), SamuPiano (0), Scojo (0), Sudocorgi (0), tobee86 (0)

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