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 30152 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 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 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)
4701
79 %
unsolvedQuad V 4x4
by iceypop3444 (on 10. August 2025, 03:28)
2811
74 %
unsolvedLook At What You're Saying
by PhoenixAki (on 9. April 2025, 10:04)
5471
77 %
unsolvedspeedrun sudoku
by Tis_Me_Alex_B (on 6. March 2024, 17:39)
10221
63 %
unsolvedSpeedy logic
by Azure (on 6. April 2025, 12:24)
5171
70 %

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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
newIndexed Rooms
by Wuschel (today, 21:18)
03
N/A
newWichtels Rätselherbst 2025 (3): Eine schwierige Zusammenarbeit
by wichtel (today, 20:25)
14
N/A
newDtch Dt
by ChinStrap (today, 18:54)
82
N/A
newDer Hyperwürfel
by LucDerLuc (today, 18:03)
112
N/A
newFlies and Spiders
by Blobz (today, 16:00)
142
89 %

Show complete list

Latest

New commentsLast solved

Ediacarium (Still Life Sudoku) (today, 22:00 by v8nagrom)
Fun solve path. At first you struggle with the active/inactive cells then you...

Croma (ft. Math Pesto) (today, 21:58 by dzamie)
Algebra comes shining through again! Fun way to start a puzzle like this.

YYSL Ratios (today, 21:56 by VitP)
yay. i say yay

a bonus box (today, 21:49 by ShadyAshley)
That was a really fun solve. The combination of restrictions here led to some...

[My 100th puzzle] The Secret of 100 (today, 21:43 by War)
Wow your old stuff is good too.

el quinto sol (today, 21:30 by eladv)
Thank you! This was great! Very tricky, but never unfair.

Orchid (today, 21:25 by Puzzlefan)
This was the first sudoku of which I was actually sad that it was over. I...

Kindling (today, 21:24 by Chelo)
The quantity and quality of the puzzles that you have shared with us is...

Rituz Unicorno Unicorno V (today, 21:23 by JVA)
This is a 2* easily

Rituz Unicorno Unicorno III - Variation 2 (today, 21:18 by Myfyr MJ)
Very nice and very easy. Thank you.

today, 22:12
Celtic Cross by abihummel

today, 22:11
Dtch Dt by SKORP17

today, 22:10
Baskin Robbins 31 Flavors by Jastucreudo

today, 22:10
Mixed Bag (6x6 Pack) by Gnubeutel

today, 22:09
Rank Up 20.cs - Clones by QuiltyAsCharged

today, 22:09
Just Another Pure Renban by Chris4927

today, 22:09
Hornet and the Bell Beast by cdeelman

today, 22:09
Variegated Succulent by Photyne

today, 22:09
Warp Speed Factor 3 by ApellA

today, 22:09
Homicidal Hoagies by me and the paws

Show complete list

Show complete list


116 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
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