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 29107 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 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
	Rose Puzzle 1 by RailMan (on 13. June 2025, 15:45)	351	80 %
	Look At What You're Saying by PhoenixAki (on 9. April 2025, 10:04)	463	77 %
	Quad V 4x4 by iceypop3444 (on 10. August 2025, 03:28)	154	71 %
	Speedy logic by Azure (on 6. April 2025, 12:24)	454	70 %
	Grey Snack by okaylib (on 15. August 2025, 18:53)	105	73 %

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The most beautiful puzzles

	Description	solved	Rating
	Rundweg Family Photo by pokerke (on 14. February 2011, 00:57)	81	100 %
	Hallig-Rundreise by tuace (on 13. April 2015, 00:47)	48	100 %
	Wichtel 2016 (2): Erfahrener Höhlenforscher gesucht by wichtel (on 20. April 2017, 11:02)	50	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 %

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The newest puzzles

	Description	solved	Rating
	Myriapods by marty_sears (today, 00:14)	1	N/A
	Schrödinger's Dots (mini) by Greenscribble24 (yesterday, 22:50)	10	N/A
	Parrot-y by Jessbelle (yesterday, 21:31)	16	88 %
	Wink to the Left by ivaylagergova (yesterday, 21:01)	7	N/A
	Floundering (Ode to juggler) by vitaminz (yesterday, 20:32)	5	N/A

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Latest

New comments	Last solved
Myriapods (today, 00:39 by vitaminz) A beautiful tribute! Schrödinger's Dots (mini) (today, 00:25 by FillTheGridSudoku) Nice puzzle! Looking forward to the 9x9 version :-) Non-consecutive sentence (today, 00:22 by Snookerfan) Very nice snack, thank you! Arrow Killer Sudoku (today, 00:12 by PinkNickels) Beautiful setting! Counterproductive (yesterday, 23:18 by MikeMeech) Very cool concept from one of my favourite constructors! Wink to the Left (yesterday, 23:15 by sujoyku) Very nice puzzle with fun interactions! Thank you, ivaylagergova! Parrot-y (yesterday, 23:12 by jorgenunez) I'd say it's more of a 1 star difficulty, but great puzzle. Fun and a nice... Slow Drive (yesterday, 23:00 by FillTheGridSudoku) This was a pleasure to solve! Flowed very nicely. I featured this one on my YT... Clueless Fog Sudoku 3 (yesterday, 22:38 by Myfyr MJ) Very nice puzzle but the rule fries your brain somewhat! Yin-Yang Least Squares (yesterday, 22:25 by Snookerfan) Very original and fun puzzle! Thank you --- Thanks for solving and...	today, 00:48 Floundering (Ode to juggler) by marty_sears today, 00:47 Iridescent slaughterer by Vodakhan today, 00:47 Modular Ring by BorisTheSnake today, 00:46 e4 e5 Ke2 Ke7 by Pseud0bread today, 00:45 Misty Miracle by 951413 today, 00:44 Floundering (Ode to juggler) by Steven R today, 00:43 Inchworms (Domino/German whispers/Renban/Odd/Even) by samuel1997 today, 00:43 A Sandwich is not a Snack by Sherpa today, 00:41 Your Outie Enjoys Puzzles by Dez256 today, 00:40 6x6 Quads and a Parity Line by allama
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