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 20097 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

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 (Variant) Congruence Loop Consecutive (Variant) Consecutive Pairs (Variant) Coral Country Road Cross the Streams Crossword Puzzle Diagonal (Variant) Difference (Variant) Disjoint Groups (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

unsolvedBeginner Palindrome
by wuc (on 8. February 2024, 20:07)
71 %
unsolvedPlacement Puzzle 1
by karencarpenter (on 26. December 2021, 14:42)
55 %
unsolvedPluto (Dwarf Planet)
by Blobz (on 25. June 2023, 20:03)
78 %
unsolvedEasy Doubles, Thermo Arrow
by SimplePurpleFrog (on 17. October 2023, 18:20)
76 %
by ark29 (on 9. February 2024, 14:20)
75 %

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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 %
unsolvedWichtel 2016 (2): Erfahrener Höhlenforscher gesucht
by wichtel (on 20. April 2017, 11:02)
100 %
unsolvedJapanische Höhle mit Irrwisch von den Außerirdischen (2)
by ibag (on 20. April 2018, 00:00)
100 %
unsolvedAdventsportale, Teil 4
by pirx (on 23. December 2018, 12:00)
100 %

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The newest puzzles

new1956 ⟶ 2024 = 68!!!
by Stargazing Albatross (today, 18:01)
new1956 ⟶ 2024 = 68!!
by Stargazing Albatross (today, 18:01)
new1956 ⟶ 2024 = 68!
by Stargazing Albatross (today, 18:01)
newLie Detector Test
by wuc (today, 17:06)
newChuy the „Frisbee Detective“ (Nala’s Adventures #18)
by SandraNala (today, 15:39)
89 %

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New commentsLast solved

Xs (today, 17:51 by Fra314)
Really cool puzzle! High 2*/low 3* in my opinion, around that range. Can I...

Exums (today, 17:47 by Myxo)
Really cool!

Xs (today, 17:44 by Selsted)
Thank you. It is so hard to judge stars, if there are shortcuts to the idea and...

Xs (today, 17:21 by Chelo)
Very nice puzzle @Selsted, more like 2 stars for me. My time is 13 minutes and...

Chuy the „Frisbee Detective“ (Nala’s Adventures #18) (today, 17:17 by Fra314)
The awesomeness of S&N puzzles is always over the top!

Chuy the „Frisbee Detective“ (Nala’s Adventures #18) (today, 16:48 by PrinnyDidi)
Really enjoyed this solve! I love this combination of rules, and I can't wait...

Adventskalender 2023, Türchen 6 - Japanischer Buchstabensalat (today, 16:46 by Christounet)
Sehr schönes Rätsel und Unglaublisches Ende ! Danke :)

Take the Low Road (today, 16:43 by DonQuichopp)
WOW, I was able to solve a 2 star sudoko. It took me 5 hours and 2 restarts but...

Caged by a Secret Killer (today, 16:24 by One Eyed Man)
Really enjoyed this. Great construction and smooth solve.

Caged by a Secret Killer (today, 16:24 by Xexxis)
I thought this was excellent, even more impressive if it was your first...

today, 18:04
Numbered Corridors 4 (Modular Lines, Numbered Sums) by Bellsita

today, 18:04
One Minute Puzzle by thunderflash

today, 18:02
Caged by a Secret Killer by Paletron

today, 18:02
One Minute Puzzle by MontanaPearl

today, 18:02
⛷ Skiing through the fog ⛷ by thunderflash

today, 18:01
Simple but Effective by chien2000gl

today, 18:01
On The “Run“ (Nala’s Adventures #6) by BBoris

today, 18:01
Clueless by pms_headache

today, 17:59
Chuy the „Frisbee Detective“ (Nala’s Adventures #18) by Notlob

today, 17:59
Battle of Evermore by jguer

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76 users were active in the last 15 minutes (number of solved puzzles in the last 24 hours in brackets):
augsod (18), MontanaPearl (12), Bellsita (11), Myxo (11), Kekes (10), abihummel (9), Echatsum (9), nunc (9), Incurrsion (7), lutzreimer (7), Raistlen (7), pms_headache (6), thunderflash (6), TrymanRacing (6), dingledork (5), Fra314 (5), IAM3 (5), bernhard (4), brimmy (4), chien2000gl (4), misha (4), trashghost (4), BBoris (3), creo (3), erkiraak (3), jogerth (3), Paletron (3), sedici (3), Sewerin (3), Stargazing Albatross (3), bansalsaab (2), jguer (2), LazarusCrowe (2), Notlob (2), Roberto (2), thek3nger (2), Wan00 (2), Wyrdsister (2), ajis (1), chinaski (1), dragoond (1), Fw1728 (1), gblaze920 (1), IcyFruit (1), LordBidoof (1), lukeyy (1), meggen033 (1), mezeji (1), micjo (1), Mr Boston (1), Nordy (1), Smee (1), tiuhto (1), towk (1), Virux (1), Agent (0), BenClancy (0), billy49 (0), Bjd (0), Carpet11 (0), daedelus23 (0), Diogoo21 (0), Fifek (0), filuta (0), Frippe  (0), gUBBLOR (0), heronflow (0), kakstront (0), kp0hyc (0), maglia (0), mashton (0), MayorasMask (0), RaketenRalle (0), SandraNala (0), Will Power (0), Yann (0)