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 30738 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.

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To help you getting started navigating the portal we have put together some puzzle collections.

Puzzle types	Puzzle collections	Puzzle 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

	Description	solved	Rating
	NKSA W02: Ski Jump by schumaster (today, 10:33)	35	76 %
	Rose Puzzle 1 by RailMan (on 13. June 2025, 15:45)	570	79 %
	Look At What You're Saying by PhoenixAki (on 9. April 2025, 10:04)	623	77 %
	Quad V 4x4 by iceypop3444 (on 10. August 2025, 03:28)	369	73 %
	speedrun sudoku by Tis_Me_Alex_B (on 6. March 2024, 17:39)	1091	63 %

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The most beautiful puzzles

	Description	solved	Rating
	Wichtel 2016 (2): Erfahrener Höhlenforscher gesucht by wichtel (on 20. April 2017, 11:02)	51	100 %
	Die Kryptos - S02E06: Summenbild Rundweg / Sudoku by tuace (on 16. March 2018, 15:10)	41	100 %
	Japanische Höhle mit Irrwisch von den Außerirdischen (2) by ibag (on 20. April 2018, 00:00)	40	100 %
	Glückwünsche vom Orion by Statistica (on 9. July 2019, 00:55)	25	100 %
	Adventskalender 2020, Finale - Riesenrundweg by Zzzyxas (on 1. December 2020, 07:00)	27	100 %

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The newest puzzles

	Description	solved	Rating
	Mithril Coat by Blobz (today, 16:00)	0	N/A
	Mini-Puzzles Keep Your Friends Close by Dee_Code (today, 15:55)	0	N/A
	Twenty (Chaconopia Snack) by Mad-Tyas (today, 15:15)	0	N/A
	Clueless Sigma by AlfSmith (today, 13:11)	13	N/A
	German style indexing by ark29 (today, 12:52)	3	N/A

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Latest

New comments	Last solved
Don't Tell the Trees (today, 16:00 by DiMono) I found this a very straightforward puzzle. I think the ratio rule could be... Irregular Set (today, 15:59 by PuzzlePatzer) Really enjoyable - thanks for sharing! It's What You Do in the Dark That Puts You in the Light (today, 15:55 by ark29) Exceptional puzzle. There was a bit in the middle where I was stuck for a while... 2 in 1 - Double the fun (today, 15:54 by Snookerfan) Interesting ruleset, very nice puzzle! Thank you Halfway There (today, 15:28 by Franjo) How you made use of the halvers is absolutely amazing here! So nice deductions.... Connectors (today, 15:18 by Snookerfan) Lovely puzzle, 2 stars I think. Thank you! Parking Garage (4 in 1) (today, 15:08 by Zibl) Lovely collection! Thank you! :) Smaug (today, 15:06 by teuthida) I really needed that killer calculator. Thanks for creating and sharing the... German Autobahn (today, 15:02 by ShadowNevio) cool puzzle, break in took a while. 2* at least. Counterpoint (today, 14:59 by Snookerfan) Gorgeous dance of digits! Fun solve, very nice. Thank you	today, 16:03 A Room Full of Perfect Tens by RadchenkoAleksandr today, 16:02 A Short Detour by JVA today, 16:00 Cages and Renban Symmetry by bilms today, 15:58 Clueless Sigma by TripleABattery today, 15:58 Irregular Set by PuzzlePatzer today, 15:58 Explorations in Whisparing by Kyhl today, 15:57 Merry Woofy Christmas (Nala’s Advent(ures) Calendar 2023 by RToto.21 today, 15:57 Clone 853 by zrbakhtiar today, 15:57 Halfway There by MartinR today, 15:56 Killer Kropki by sorhead
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