Logic Masters Deutschland e.V.

(Very) Hard AND nice puzzles

The following list contains portal puzzles that have been rated as nice or very nice and that are difficult. These puzzles are recommended for experts - and allow some time to solve.

DescriptionsolvedRating
unsolvedSuspension of Disbelief
by XeonRisq (on 27. June 2022, 17:00)
564
97 %
unsolvedEt Tu Brute?
by Scojo (on 19. March 2024, 14:04)
504
95 %
unsolvedKiller Sudoku - Ignorant of 9's
by ProwlingTiger (on 10. May 2020, 00:49)
454
94 %
unsolvedThe Suducku King (Thermometer + Renban sudoku)
by Aspartagcus (on 1. May 2021, 20:51)
454
94 %
unsolvedChaotic Sandwiches (Entropy Special)
by Mad-Tyas (on 2. January 2022, 21:29)
454
96 %
unsolvedBergentrückung
by Gerhard1963 (on 10. October 2024, 23:00)
444
90 %
unsolvedGigglywhirl (Nabner Whisper)
by tallcat (on 4. January 2025, 16:08)
884
96 %
unsolvedErster Pfeilchenstrauß
by glum_hippo (on 16. August 2020, 09:33)
444
95 %
unsolvedNonconsecutive Quads
by LucyAudrin (on 24. July 2021, 20:18)
484
91 %
unsolvedInsight
by Xenonetix (on 15. January 2022, 04:54)
374
96 %
unsolvedRegion X-Sums
by twototenth (on 4. October 2022, 08:00)
414
92 %
unsolvedall the seats were occupied
by aqjhs (on 15. December 2025, 17:17)
414
94 %
unsolvedWail
by mathpesto (on 25. February 2025, 17:26)
814
95 %
unsolvedAusgedehnte Mittagspause
by Richard (on 26. February 2010, 12:00)
684
97 %
unsolved"21" Partial Killer
by Djmelee3000 (on 17. September 2020, 22:31)
424
95 %
unsolvedChaos Construction: Snake
by Jay Dyer (on 14. January 2022, 19:55)
344
98 %
unsolvedIn The Middle of The Knight
by Ridhwan (on 30. March 2023, 09:00)
404
92 %
unsolvedSquishtroquadri Snack Pack
by ThePedallingPianist (on 5. December 2024, 12:25)
384
95 %
unsolved真笑Puzzles038--Chaos Construction-- “韩非子” 003
by cdwg2000 (on 6. April 2021, 14:18)
304
98 %
unsolved159²
by Sktx (on 2. September 2021, 01:17)
284
94 %
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