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 20987 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) 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 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 Laser Letter Puzzle Lighthouses LITS Little Killer (Variant) Lockout Lines (Variant) Logical Magic Labyrinth Magic Square Magnets Masterword Masyu Mathrax Maximum (Variant) Minesweeper MinMax (Variant) Nanro Non-Consecutive (Variant) Non-Touching (Variant) Nonogram Norinori Number Link Nurikabe Palindrome (Variant) Parity (Theme) Parity Party (Variant) Pathway (Variant) Pentominous Pentopia Position Sums (Variant) Primes (Theme) Product (Theme) Products Pyramid Quadruple (Variant) Railroads Ratio (Variant) Ratio Pairs (Variant) Region Sum Lines (Variant) Regional Sums Remote (Variant) Renban (Variant) Roller Coaster Roman Numerals (Variant) Roman Sums Samurai (Variant) Sandwich (Variant) Shakashaka Shikaku Shimaguni Skyscraper Clusters Skyscrapers Slingshot (Variant) Slitherlink Smashed Sums Snake Snake (Variant) Star Battle Sudoku Suguru Tapa 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
	Beginner Palindrome by wuc (on 8. February 2024, 20:07)	293	73 %
	speedrun sudoku by Tis_Me_Alex_B (on 6. March 2024, 17:39)	298	60 %
	Placement Puzzle 1 by karencarpenter (on 26. December 2021, 14:42)	911	55 %
	Easy Doubles, Thermo Arrow by SimplePurpleFrog (on 17. October 2023, 18:20)	573	77 %
	Knickwege invers für Anfänger (1) mit Lösungshinweisen by hopppe (on 17. March 2010, 15:00)	525	44 %

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The most beautiful puzzles

	Description	solved	Rating
	Rundweg Family Photo by pokerke (on 14. February 2011, 00:57)	73	100 %
	Hallig-Rundreise by tuace (on 13. April 2015, 00:47)	41	100 %
	Wichtel 2016 (2): Erfahrener Höhlenforscher gesucht by wichtel (on 20. April 2017, 11:02)	46	100 %
	Japanische Höhle mit Irrwisch von den Außerirdischen (2) by ibag (on 20. April 2018, 00:00)	40	100 %
	Adventsportale, Teil 4 by pirx (on 23. December 2018, 12:00)	45	100 %

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The newest puzzles

	Description	solved	Rating
	TENtacles by marty_sears (today, 00:12)	0	N/A
	Deep Space (Entropy Antimatter) by Mad-Tyas (yesterday, 23:11)	1	N/A
	Town Planning (Kropki Skyscraper Sudoku) by RobK (yesterday, 21:02)	2	N/A
	Lighthouse Hashikabe by Nell Gwyn (yesterday, 20:42)	1	N/A
	Rectes Return by josebastian8 (yesterday, 20:11)	2	N/A

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Latest

New comments	Last solved
Dutch Flat Mates (Double Sandwich Sums) (today, 00:29 by josemadre) What a great series! I appreciate the hints, even if I don't use them, just... All’s Different (today, 00:12 by Peteronium) lol. That was a lot of fun. Thanks. ...What? (yesterday, 23:57 by Abdul the Killer) You're a beautiful idiot. Thank you. Four Four by Four (yesterday, 23:43 by Drawoon) penpa+: https://tinyurl.com/28dfp5oe --- juggler: added, thanks! Mystery Killer Primes (5x5) (yesterday, 23:41 by BenTen) Very nice puzzle with some clever logic. Lighthouse Hashikabe (yesterday, 23:09 by Christounet) A very interesting new layer with the lighthouse and boat logic. Definitely... Renban Loop (yesterday, 23:07 by sujoyku) Thank you for this wonderful puzzle, blackjackfitz! I think it is a little... Fog X (yesterday, 23:06 by DK_48) Very funny. Easy As... (yesterday, 22:25 by DK_48) nice little puzzle H is for Happy Birthday (The Pedalling Pianist!) (yesterday, 22:09 by s1mn) Love it!	today, 00:52 Double Dip by Bobbobert today, 00:51 Buena Suerte by lpq29743 today, 00:50 Copycat by ohnoitsadalek today, 00:50 The Corners Are Even - Zipper Lines by SparklePuzzle today, 00:50 Killer in the Fog by vfig today, 00:50 Twinkle by JohnDoeJersey today, 00:45 Middle of the Road (Killer) by noodlehead today, 00:45 Dual Masyu by Echatsum today, 00:45 Final Candidate by drifting today, 00:44 Four Four by Four by seh_bas
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