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 34183 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)
1841
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
newVariantDoku Daily Puzzle: May 26
by Brandy New (today, 09:50)
31
N/A
newFoggy Greater Than Tens
by pagedo (today, 09:24)
11
N/A
newLupin's Loop 2 - Space Invasion
by Rab3aron (today, 08:39)
43
N/A
newdozy sausages
by aqjhs (today, 07:07)
53
N/A
newRigmarole
by NicoD (today, 05:30)
113
N/A

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Latest

New commentsLast solved

Lupin's Loop 2 - Space Invasion (today, 10:16 by mathics)
What a masterpiece! Absolutely loving this series, can’t wait for more :)

Introception (today, 09:53 by Snookerfan)
Very nice! Smooth and enjoyable, thanks

Oil, Water, Circles (today, 09:53 by anothermember)
I like how one rule doesn't dominate over the other, you have to use both...

Lupin's Loop 2 - Space Invasion (today, 09:45 by 6yler)
What a brilliant and smooth puzzle!

Lupin's Loop 2 - Space Invasion (today, 09:41 by luna_vale)
Brilliant puzzle! Very beautiful break in and a very smooth solve path!

Reborn hooligan ghost (today, 09:27 by Snookerfan)
Fun puzzle! 2 stars at most, which means it was very well set. Thanks

Leap Frog of War by Four (today, 09:27 by Flinty)
Cute ending, brutal in a few places.

Rigmarole (today, 09:10 by Snookerfan)
Very nice! Lovely ruleset and execution. Thanks

Joker's Miracle (today, 09:00 by AaronH)
Hard to believe that Miracle was 6 year ago. Great puzzle

Dice Roll (today, 08:44 by Amirreza)
Interesting opening and nice odd/even puzzle!

today, 10:24
Antiknight Arrows by pseudoku

today, 10:23
In a Kropki Far, Far Away by Christounet

today, 10:22
ein bisschen deutsch <3 by L00ping007

today, 10:20
Antiking Mini by mogest

today, 10:20
White Dotted Arrows / Weiße gepunktete Pfeile (Sudoku) by RadchenkoAleksandr

today, 10:19
ein bisschen deutsch <3 by snowbaby

today, 10:19
VariantDoku Daily Puzzle: May 26 by Guillem98

today, 10:19
Orions Barrage by InterestingAlgae

today, 10:19
VariantDoku Daily Puzzle: May 26 by L00ping007

today, 10:17
ein bisschen deutsch <3 by Phandor

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Show complete list


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