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
unsolvedProductivity Killer
by starwarigami (on 13. January 2024, 21:02)
275
92 %
unsolvedChaos Construction: Disconnected (2)
by KNT (on 20. May 2024, 04:09)
875
98 %
unsolvedWichtel 2021 (2): Der Sternenkompass
by wichtel (on 1. June 2022, 21:20)
165
93 %
unsolvedLM-Übungsrätsel: No Same Sums
by CJK (on 1. July 2023, 20:23)
165
96 %
unsolvedBluth's
by mathpesto (on 21. May 2023, 03:08)
465
96 %
unsolvedRank Up 06 - Fibonacci Squishtroquadri
by ThePedallingPianist (on 14. July 2024, 01:08)
475
98 %
unsolvedBeispiel für Roller Coaster mit Extras 25
by Uhu (on 3. March 2022, 06:35)
275
100 %
unsolvedSpooky Action at a Distance
by cygne (on 4. January 2026, 08:04)
355
96 %
unsolvedUrban Sprawl
by jwsinclair (on 27. July 2022, 18:56)
355
97 %
unsolvedDoppelte Adventssummen 4. Advent
by Luigi (on 20. December 2015, 08:04)
525
96 %
unsolvedWichtel 2022 (7): Kryptisches Fillominurikabe
by wichtel (on 11. October 2023, 14:14)
135
95 %
unsolvedupcoming upheaval
by aqjhs (on 24. February 2025, 00:00)
245
91 %
unsolvedCavernous Japanese Sum: Deconstruction (11x11)
by Playmaker6174 (on 28. November 2025, 16:00)
125
100 %
unsolvedCounting Cages
by plasmath (on 17. January 2026, 14:46)
295
94 %
unsolvedArmored Harriers
by wooferzfg (on 30. April 2023, 06:06)
294
96 %
unsolvedThe 15-Box Odyssey
by Duarte-Carvalho (on 11. October 2025, 10:00)
364
90 %
unsolvedKiller Lunchboxes
by Undar_Beyond (on 16. June 2020, 16:35)
534
98 %
unsolvedMystery Box
by Nahileon (on 2. August 2022, 22:09)
344
92 %
unsolvedUnter der Lupe (Instructionless)
by Myxo (on 27. September 2023, 10:20)
454
96 %
unsolved»Little Killer« unter Damen
by glum_hippo (on 20. May 2020, 08:25)
214
91 %
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