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 34178 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 ABCD 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 Capsules 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 Myopia 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 Stostone 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
unsolvedKropki Quadruple: Tutorial (1/4)
by BlueToast001 (on 18. May 2026, 17:00)
1831
78 %
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
7101
72 %
unsolvedDay 9: Chess Sudoku
by SharpFox (on 9. December 2025, 06:00)
5581
77 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
13111
63 %
unsolvedLook At What You're Saying
by PhoenixAki (on 9. April 2025, 10:04)
9041
79 %

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The most beautiful puzzles

DescriptionsolvedRating
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
553
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)
415
100 %
unsolvedGlückwünsche vom Orion
by Statistica (on 9. July 2019, 00:55)
254
100 %
unsolvedAdventskalender 2020, Finale - Riesenrundweg
by Zzzyxas (on 1. December 2020, 07:00)
295
100 %

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The newest puzzles

DescriptionsolvedRating
newSearching for Sasquatch
by Merdock (today, 02:17)
33
N/A
newein bisschen deutsch <3
by AaronH (today, 00:13)
151
N/A
newTight Fit 5
by The Bard (yesterday, 23:24)
471
94 %
newReborn hooligan ghost
by Lithium-Ion (yesterday, 18:51)
133
N/A
newAntiknight Arrows
by NateagXXVII (yesterday, 17:31)
552
94 %

Show complete list

Latest

New commentsLast solved

Crazy Chaos Construction! (today, 05:14 by nassausolver)
This was super fun thank you

Regional Renbans (today, 04:55 by greebug)
Fun concept

Balanced X-Sums (today, 03:36 by jordanza)
Absolutely magnificent!

Or is it? (today, 03:35 by MysticMan)
Lovely puzzle!

Bars (today, 03:33 by MysticMan)
Lovely puzzle!

Voïvod (today, 03:15 by Silverscree)
I have a query:

"Where a galaxy's size covers an odd number of cells, the...

6 Arrows (today, 02:51 by blueberrypug)
this one has me stumped. I suspect it has something to do with low digits but I...

Arrowhead writing (today, 02:40 by Phurba)
Very nice puzzle! Since I'm not too familiar with Penpa+, I solved it in...

Nonoknights V (today, 02:03 by scarfdoku)
Thanks for the fun puzzle

Bobbins! (today, 01:59 by Slayer)
Really enjoyed the flow through the entire puzzle.

Puzzle with solution...

today, 05:14
Tight Fit 5 by TeddieMilo

today, 05:13
Wilkommen im Palindrom by ItchySwan

today, 05:13
Crazy Chaos Construction! by nassausolver

today, 05:11
1984 (Who Could Ask For More?) by mmhhhh

today, 05:10
Pyrotechnics by augsod

today, 05:10
Antiknight Arrows by jguer

today, 05:10
Farfalle by mackant1

today, 05:06
X-Sum Arrows by booteskey

today, 05:06
Spiraling Thermos by Terrapin

today, 05:04
Cookie Crime Part 3: On The Scent (Nala‘s Adventures #29) by chenlu

Show complete list

Show complete list


52 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
firespire (19), chenlu (16), QuiltyAsCharged (10), blongo (7), jguer (6), TeddieMilo (6), booteskey (5), Terrapin (5), EFlatMinor (4), kehan628 (4), lgastako (4), mantle_alta (4), augsod (3), BorisTheSnake (3), DulP (3), godoffours (3), Hizuriya (3), mackant1 (3), wolf69 (3), Azumagao (2), ItchySwan (2), jeffrey.l.byrd19 (2), Jrgamer4u (2), killer_rectangle (2), lrbhandanshi (2), teeeooooo (2), Crusader175 (1), Dag H (1), Densii2048 (1), Karitsu (1), mmhhhh (1), nassausolver (1), strangelyinsane (1), terrible_casserole (1), tricksy1224 (1), Voidslime (1), AaronH (0), Ariadne (0), banhkep (0), BigLittleM (0), Bokiepokie (0), gonzalez87 (0), iEtsh (0), JayBird (0), JJProducti0ns (0), midl (0), robokong (0), Tarbs (0), Tom-dz (0), tryote (0), vitaminz (0), wasdyyf (0)

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