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 29364 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
unsolvedLook At What You're Saying
by PhoenixAki (on 9. April 2025, 10:04)
4921
77 %
unsolvedRose Puzzle 1
by RailMan (on 13. June 2025, 15:45)
3831
80 %
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
2031
71 %
unsolvedSpeedy logic
by Azure (on 6. April 2025, 12:24)
4711
70 %
unsolvedSchrödinger's Dots (mini)
by Greenscribble24 (on 16. August 2025, 22:50)
1391
81 %

Show complete list

The most beautiful puzzles

DescriptionsolvedRating
unsolvedRundweg Family Photo
by pokerke (on 14. February 2011, 00:57)
825
100 %
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
503
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)
405
100 %
unsolvedGlückwünsche vom Orion
by Statistica (on 9. July 2019, 00:55)
254
100 %

Show complete list

The newest puzzles

DescriptionsolvedRating
newPac-Man ghosts - Dekadoku
by xaviercastle (today, 06:30)
04
N/A
newBewildered
by NicoD (today, 05:30)
14
N/A
newCaged Region Sum Deflection
by pagedo (today, 04:30)
31
N/A
newMore Corners
by Gentle (today, 02:57)
22
N/A
new[PAC] Off-by-one Tapa
by yttrio (today, 01:00)
61
N/A

Show complete list

Latest

New commentsLast solved

Divisible Cages (today, 08:14 by Piatato)
Great fun!

Steamy Secrets (today, 07:34 by Riccardo)
Really enjoyable smooth solve.

Region Sum Scramble (today, 07:27 by frosto)
Easy but not trivial (I had to restart it, ha ha, I might be a bit slow).
Very...

Impetus (today, 07:10 by avishai)
Delightful! Hard, but chipping away was so worthwhile, thank you!
-----
ND:...

Brackets (today, 06:23 by Crusader175)
Nice interaction!

Thermonuclear Fog (today, 06:21 by frosto)
The perfect amount of challenge for a 1 star puzzle.
Never boring, never hard,...

Modular Line in the Fog (today, 06:17 by Voidslime)
Very fun! I really enjoyed the way the disambiguating unfolds

Petit Pois (today, 05:51 by juggler)
Insane how much is forced by the clues in the top of the grid, seemingly ex...

1-5-9 O'Clock Rock (today, 05:31 by frosto)
a two star puzzle for sure, you need to know a trick about 1,5,9 puzzles.
Very...

Happy Birthday Finnegan! (today, 05:06 by MikeMeech)
Good job making it work with the picture!

today, 08:19
Color pattern by shanzhai

today, 08:14
Modular Line in the Fog by dade

today, 08:14
Slow Ride by TagEule

today, 08:13
Divisible Cages by Piatato

today, 08:13
Snakes on a plane by zrbakhtiar

today, 08:13
6x6 Irregular Anti Knight 5 by brandon_bot

today, 08:12
Chess Knight by hige

today, 08:07
6x6 Irregular Anti Knight 5 by Mozart40

today, 08:05
Señor Fog by Lunxs

today, 08:04
Anna's Delight by Kyhl

Show complete list

Show complete list


29 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
jkuo7 (7), tgstar (7), Mozart40 (5), samking (5), brandon_bot (3), Piatato (3), SeveNateNine (3), TagEule (3), Treme (3), dade (2), shanzhai (2), hige (1), Jen118266 (1), Kyhl (1), Lunxs (1), mwalles (1), richardkchapman (1), Sinuit (1), Cane_Puzzles (0), eamondo (0), jjj (0), Mad-Tyas (0), PiMaster9 (0), prismic911 (0), PsychedelicCreature (0), seeppp (0), thrutch (0), tryote (0), Zensien (0)

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