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 31406 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 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 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
	Quaver by Mr Toffee (on 11. December 2025, 00:01)	165	73 %
	Rose Puzzle 1 by RailMan (on 13. June 2025, 15:45)	639	79 %
	Day 1: Arrows by SharpFox (on 1. December 2025, 06:00)	309	79 %
	Quad V 4x4 by iceypop3444 (on 10. August 2025, 03:28)	416	73 %
	Look At What You're Saying by PhoenixAki (on 9. April 2025, 10:04)	672	77 %

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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)	52	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
	...And A Partridge In A Pear Tree by Mr Toffee (today, 00:01)	0	N/A
	Oh Tannenbaum – Level 2 by koarla (today, 00:00)	1	N/A
	Room Key by rysmyth240 (yesterday, 21:39)	2	N/A
	Snakes and States by logicanimal (yesterday, 20:20)	0	N/A
	All Clues are Given No. 4 by RailMan (yesterday, 19:48)	5	N/A

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Latest

New comments	Last solved
Day 17: Clever Irregularity (today, 00:56 by FireTruckFuel) This is the first time I have seen a broken region in an irregular puzzle... Tinsel and Baubles (today, 00:32 by Hengist) Absolutely incredible, just wow! Merry Christmas from the land of whispers! Modropic Lines (today, 00:03 by Reina) The revelation of consequences of both entropic and modular for lines longer... Let it snow, let it snow, let it snow! (yesterday, 23:57 by PinkNickels) Beautiful puzzle! Merry Christmas to you and yours! Fallen Leaves (GW + Killer) (yesterday, 23:50 by Hengist) nice one, went quite fast but i agree that beginners would really struggle here This FOG is a green snaky GAS (yesterday, 23:46 by MattJones) Lovely, simple, puzzle - but a little too much work to be a true GAS I think. Sudoku Variants Series (282) - Delimited Kropki Sudoku (yesterday, 23:05 by dzamie) Nice! Glad you featured this ruleset in your advent collection. (Not so) Little Killers (yesterday, 23:02 by Reina) The shorter the rules the harder the puzzle, huh. Way harder than 2 stars in my... Heat Dome (yesterday, 22:31 by neroute2) What a breakin. I think all my logic was valid... Renban Thermometers (yesterday, 22:02 by faltenin) A really nice construction, that starts as a head-scratcher then everything...	today, 00:55 Deck The Halls by Fenn today, 00:53 House of Cards (6x6) by SirRookie today, 00:53 SUDOKU SUDOKU, vol. 3 by koiking today, 00:51 Easy Peasy Sudoku Advent (24) - Delimited Kropki by minicartel today, 00:51 Day 17: Clever Irregularity by FireTruckFuel today, 00:50 The Nutcracker by aqjhs today, 00:50 Restricted Access (Fog of War) by AllLemons today, 00:50 Paper Snowflake by dorverbin today, 00:50 This FOG is not a Killer GAS by garycblack today, 00:49 Echo Chamber (Counting Circles + Cave Shading) by sehringdipity
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