Logic Masters Deutschland e.V.

The Puzzle Portal

The puzzle portal is a collection of puzzles created by puzzle enthusiasts from all over the world. At the moment the portal contains 6598 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

3d Abctje Akari Anti-Knight Anti-king Antiknight Arithmetics Arrow Arrow Sudoku As easy as Außerirdischer Battleships Beginner Big Buchstabenrätsel Chess Close of the mark Coloring Coral Crypto Diagonal Disjoint Groups Divided Dividing Domino Doppelblock English Fences Filling Fillomino Generated with computer German Hashiwokakero Hexagonal Heyawake Hint Hitori Hochhausblöcke Höhle Inseln Irregular Japanese sums Jigsaw Kakuro Killer Killer Sudoku Killer-Sudoku Killersudoku Knowledge Kombination Kropki Kropki Sudoku Little Killer Little Killer Sudoku Magic Square Magic spiral Magnets Masterword Masyu Math Mehrdeutig Meta Minesweeper Mystery Nonconsecutive Palindrome Parity Parity Party Paths Pentomino Pfeile Placing Roller Coaster Sandwich Sandwich Sudoku Secret code Sequence Skyscrapers Small Snake Standard puzzle Starbattle Stations Subway Sudoku Tapa Tents Thermo Thermo Sudoku Thermometer Toroidial Variant XV XV sudoku Yajilin Yin-Yang mit Computerhilfe neuartig toroidal 2358

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

new红葉puzzles(PP74): Hashiwokakero001
by cdwg2000 (on 24. February 2021, 09:11)
72 %
unsolvedXikaku für Anfänger
by hopppe (on 14. May 2010, 11:00)
60 %
unsolvedHashiwokakero für Anfänger (1)
by berni (on 10. December 2008, 13:38)
70 %
by RobertBe (on 1. December 2009, 10:53)
67 %
unsolved2a. Achtelwenden Daneben 4x4
by adam001 (on 6. October 2012, 08:30)
73 %

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The most beautiful puzzles

unsolvedRundweg Family Photo
by pokerke (on 14. February 2011, 00:57)
100 %
by tuace (on 13. April 2015, 00:47)
100 %
unsolvedNeue Post vom Außerirdischen
by ibag (on 6. September 2015, 00:00)
100 %
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
100 %
unsolvedAdventsportale, Teil 4
by pirx (on 23. December 2018, 12:00)
100 %

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The newest puzzles

newThe Power of Sudoku
by 28degrees (today, 19:08)
newThe Old Windmill Sudoku
by steelwool (today, 17:09)
newLittle Killer Arrow Sudoku
by Phistomefel (today, 11:50)
newAnti-Knight Killer Sudoku #2
by udukos (today, 10:19)
new红葉puzzles(PP76): Slitherlink012
by cdwg2000 (today, 08:02)
86 %

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New commentsLast solved

Sudoku Variants Series (309) - Sudoku Kropki Pointers (today, 21:13 by Richard)
@marmees: thanks! Yes 23-2 was my birthday. :-)

Sudoku Variants Series (278) - Position Sums Sudoku (today, 21:11 by Richard)
Added tag. Thanks for pointing it out glum_hippo!

Kropki with wormholes (today, 20:49 by PrimeWeasel)
Added sudoku label. Sorry, thought I had it labeled.

Sudoku Variants Series (303) - Assorted Sandwiches Sudoku (today, 20:30 by Rollo)
Ganz toll. Ich fand es nicht schwer. Ich hab von Richards SVS nur noch eins mit...

Tag 24 - Finale (today, 20:24 by jessica6)
Muß es nicht beim Masyu / schwarzer Kreis "im Feld davor und danach geradeaus"...

Miracle Killer Sudoku (today, 20:06 by wilsig)
For some reason the field for the code is only visible before login, not after....

Consecutive Magic (today, 19:57 by filuta)
Thanks a lot, really enjoyable puzzle!

Magnetschlange 2 (Leftover der LM-Quali 2021) (today, 19:43 by Statistica)

Sandwich Sudoku around the corner (today, 18:43 by glum_hippo)
Online linkë

Magnetschlange 2 (Leftover der LM-Quali 2021) (today, 18:35 by Jesper)
Super! Hat Spaß gemacht

today, 21:13
Magic Kropki by severinus

today, 21:11
Killer X Sudoku by Cowbear

today, 21:10
Doppelstern für Anfänger (1) by puffy2005

today, 21:07
Japanische Krypto-Summen by Raistlen

today, 21:07
Zeltplatz by FalseIsNotTrue

today, 21:04
Total-False Tapa by Mjb99

today, 21:04
Japanische Summen für Anfänger (2) by GrabeR

today, 21:04
XV Thermo Sudoku by adam001

today, 21:03
Japanische Summen für Anfänger (1) by GrabeR

today, 20:59
Killer Sudoku 210 by Jaych

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28 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
misko (14), Krokant (8), Jesper (7), Raistlen (7), FalseIsNotTrue (6), GrabeR (5), SKORP17 (3), adam001 (2), alihanz (2), filuta (2), severinus (2), Cowbear (1), Dibi (1), Garford (1), MagnusJosefsson (1), marcmees (1), Mjb99 (1), ogi.djukovic (1), puffy2005 (1), Rollo (1), Filto (0), fritzdis (0), kalumtum (0), marsigel (0), PetLov (0), Qodec (0), Ryx (0), TheDerbySaint (0)