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 20910 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)
2871
73 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
2871
60 %
unsolvedPlacement Puzzle 1
by karencarpenter (on 26. December 2021, 14:42)
9071
55 %
unsolvedEasy Doubles, Thermo Arrow
by SimplePurpleFrog (on 17. October 2023, 18:20)
5691
77 %
unsolvedKnickwege invers für Anfänger (1) mit Lösungshinweisen
by hopppe (on 17. March 2010, 15:00)
5231
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
newFull English Breakfast
by juggler (yesterday, 23:40)
13
N/A
newRiffle Shuffle
by 99%Sneaky (yesterday, 22:52)
04
N/A
newBy an arrow margin
by sujoyku (yesterday, 20:32)
53
N/A
newSeparated in the Fog
by FullDeck-Missing (yesterday, 19:22)
392
89 %
newUmbrella (Thermo, Killer)
by LittleNightmaresLady (yesterday, 18:18)
15
N/A

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Latest

New commentsLast solved

Full English Breakfast (today, 00:21 by ChinStrap)
Very enjoyable. Just don't play while hungry

Separated in the Fog (today, 00:05 by Nostor)
Thank you, very smooth and certainly a bit of a challenge as I am not very...

Separated in the Fog (yesterday, 23:28 by inthemoonlight)
I really enjoyed how smooth the logic was in this puzzle.

Soapbox Race (yesterday, 22:56 by pazzol02)
Highest Score here is my 5:28, I won right? Right?

Broken symmetry (yesterday, 22:55 by sujoyku)
Thank you for this fun puzzle, arbitrary! I especially enjoyed some deductions...

Broken symmetry (yesterday, 22:38 by lmdemasi)
Loved every minute of it, thanks!

Ratio Sudoku #1 (yesterday, 21:31 by CcmarvMD)
A very good reminder to read the rules in full! would've saved me about 10m had...

Broken symmetry (yesterday, 21:20 by only1evenprime)
gorgeous

159 Miracle (yesterday, 21:17 by ninjamunk)
Once you wrap your head around the indexing it's pretty straight forward, but...

Joyful Moments #1: Spring Breeze (Nala’s Adventures #19) (yesterday, 20:54 by WildEnte)
Sandra and Nala puzzles are my favorites. They have this special beauty: the...

today, 00:28
Fully Booked [Numbered Rooms Fillomino] by josebastian8

today, 00:27
Mitochondria by SIGINT

today, 00:27
Crush BETA by Raistlen

today, 00:24
Broken symmetry by MagnusJosefsson

today, 00:23
One-Fog-Nine by Raistlen

today, 00:22
Va-Et-Vient by sedici

today, 00:22
El-Even by jcelia

today, 00:21
Full English Breakfast by ChinStrap

today, 00:18
Oh No, My Shirt! by Julianus

today, 00:17
This FOG is a GAS!!! by rexxk

Show complete list

Show complete list


40 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
SIGINT (8), fca.felix.sudoku (5), josebastian8 (5), PenguDaGreat (5), Raistlen (5), appletrapezoid (4), ChinStrap (4), Julianus (4), annnz (3), chain.reader (3), jcelia (3), killer_rectangle (3), kublai (3), rexxk (3), gamlesvarten (2), goodcity (2), MagnusJosefsson (2), sandrokv (2), sedici (2), 99%Sneaky (1), AltVoid (1), arbitrary (1), dogfarts (1), idanz (1), PsychedelicCreature (1), terrible_casserole (1), Abdul the Killer (0), apothycus (0), gynu (0), HalfBakedLunatic (0), Histibidi (0), imagle (0), Jlrice2 (0), Jobo (0), juggler (0), KMD (0), mobiustrip (0), saydo17 (0), Syzorz (0), whtshername (0)

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