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 6231 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 Battlefield Battleships Beginner Big Buchstabenrätsel Chess Close of the mark Coloring Coral Crypto Diagonal Divided Dividing Domino Doppelblock English Fences Filling Fillomino Generated with computer German Hashiwokakero Hexagonal Heyawake Hint Hitori Hochhausblöcke Höhle Inseln Irregular Japanese sums Kakuro Killer Killer Sudoku Killer-Sudoku Killersudoku Knowledge Kombination Kropki LITS Little Killer Little Killer Sudoku Logelei - Logical Magic Square Magic spiral Magnets Masterword Masyu Math Mehrdeutig Meta Minesweeper Mystery Palindrome Parity Party Paths Pentomino Pfeile Placing Portal Special Roller Coaster Sandwich Sandwich Sudoku Secret code Sequence Shakashaka Skyscrapers Slingshot Small Snake Standard puzzle Starbattle Stations Subway Sudoku Tapa Tents Thermo Thermometer Toroidial Variant X-Sudoku XV 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

unsolvedXikaku für Anfänger
by hopppe (on 14. May 2010, 11:00)
60 %
unsolved红葉puzzles(PP31): Numberlink001
by cdwg2000 (on 2. December 2020, 15:23)
69 %
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

new真笑Puzzles020--Chaos Construction-- “孔子” 001
by cdwg2000 (today, 11:10)
newThermal Overload
by GremlinSA (today, 09:00)
newGhost Python 5 (Clone Snake Sudoku)
by peterchayward (today, 07:06)
newBroken Chesssboard
by kevin.r.bland (today, 04:50)
newMy 70th Puzzle (Little Killer Kropki)
by LucyAudrin (today, 01:04)
94 %

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New commentsLast solved

Friendly Sandwiches (today, 10:16 by PrimeWeasel)
After placing the friendly digits it gets rather easy, but I really enjoyed it....

Killer Magic 5X5 (today, 08:42 by steelwool)
Lovely puzzle.

No they are NOT magic squares! (today, 07:11 by bigger)
Usually I left the 4 quadruple in a box last for so many combination. Now I...

Sudoku Variants Series (257) - S, as in Sudoku (today, 07:03 by Mufasa)
Short URL of PENPA edit.


Sudoku Variants Series (038) - Group Sums (today, 06:48 by Narayana)
Link to play it on f-puzzles


Omnidirectional (today, 06:22 by askel083)
Thanks! I’m quite new to arrow sudoku and I enjoyed this puzzle a lot!

Magic Thermo Chess (today, 06:21 by beans)
My kind of puzzle. I keep enjoying everything you put out. Thanks!

Encaged Kropki (today, 06:12 by Narayana)
Thank you for trying my rings puzzle I am glad you liked it. I am...

Anti-Knight Anti-King Magic Square (today, 05:05 by Ryx)
Changed the title and rules, to use standard terms/rules. Thanks to SKORP17,...

Broken Chesssboard (today, 04:52 by kevin.r.bland)
Changed to average. It's unorthodox, but no individual step is incredibly...

today, 11:08
The XV Arrows (XV Series #2) by zorant

today, 11:06
My 70th Puzzle (Little Killer Kropki) by shudd

today, 11:03
Thermo Leisure by rcg

today, 11:02
Thermal Overload by adam001

today, 11:01
My 70th Puzzle (Little Killer Kropki) by cornuto

today, 10:57
Friendly Sandwiches by samuella

today, 10:53
红葉puzzles(PP61): Sudoku003 by Veegody

today, 10:50
Prime Path by PrimeWeasel

today, 10:49
红葉puzzles(PP61): Sudoku003 by rcg

today, 10:49
My 70th Puzzle (Little Killer Kropki) by karen_birgitta

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18 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
zorant (8), rcg (7), cdwg2000 (5), bflat (4), skywalker (4), sandmoppe (2), shudd (2), adam001 (1), mainakdatta (1), samuella (1), TroublesomeOrca (1), admirableostrich (0), ahaupt (0), CHalb (0), Lagavulin (0), michaal94 (0), Phurba (0), SlowLarry (0)