Logic Masters Deutschland e.V.

Richard

Richard is one of the most productive authors in the puzzle portal. His specialty are Sudoku variants and ABCtjes, but he also likes using Pentominoes in his puzzles. Richards puzzles are very popular: almost all of his puzzles are rated above 80%, and they cover the whole difficulty range. Enjoy Richard's puzzle creations!

DescriptionsolvedRating
unsolvedSudoku Variants Series (449) - Zipper Lines ++
by Richard (on 7. November 2025, 06:00)
684
89 %
unsolvedSudoku Variants Series (448) - Coordinate arrows
by Richard (on 31. October 2025, 06:00)
1372
98 %
unsolvedSudoku Variants Series (447) - Remote German Whisper Dots
by Richard (on 24. October 2025, 06:00)
773
91 %
unsolvedSudoku Variants Series (446) - Mountain Sudoku
by Richard (on 17. October 2025, 06:00)
1033
94 %
unsolvedSudoku Variants Series (445) - Cage relations (a.k.a. XY-cages)
by Richard (on 10. October 2025, 06:00)
633
98 %
unsolvedSudoku Variants Series (444) - Easy as 369
by Richard (on 3. October 2025, 06:00)
1632
94 %
unsolvedSudoku Variants Series (443) - Diagonal consecutives
by Richard (on 26. September 2025, 06:00)
822
93 %
unsolvedSudoku Variants Series (442) - Modular Lines
by Richard (on 19. September 2025, 06:00)
743
94 %
unsolvedSudoku Variants Series (441) - Hot Potato
by Richard (on 12. September 2025, 06:00)
1043
95 %
unsolvedSudoku Variants Series (440) - Krꝏpki Dꝏts
by Richard (on 5. September 2025, 06:00)
763
94 %
unsolvedSudoku Variants Series (439) - Top Heavy Parity
by Richard (on 29. August 2025, 06:00)
1072
93 %
unsolvedSudoku Variants Series (438) - Regular Dots
by Richard (on 22. August 2025, 06:00)
952
92 %
unsolvedSudoku Variants Series (437) - X-Sums or X-Products
by Richard (on 15. August 2025, 06:00)
793
95 %
unsolvedSudoku Variants Series (436) - X-Products
by Richard (on 8. August 2025, 08:00)
772
93 %
unsolvedSVS #435 Leftover: Slow Thermos
by Richard (on 1. August 2025, 08:00)
563
88 %
unsolvedSudoku Variants Series (435) - Slow Thermos
by Richard (on 1. August 2025, 04:29)
1052
95 %
unsolvedSudoku Variants Series (434) - Diagonal Sandwich
by Richard (on 25. July 2025, 08:00)
922
95 %
unsolvedSudoku Variants Series (433) - Zifference Lines
by Richard (on 18. July 2025, 08:00)
912
94 %
unsolvedSudoku Variants Series (432) - Pointing Arrows
by Richard (on 11. July 2025, 08:00)
1602
96 %
unsolvedSudoku Variants Series (431) - Split Pea Lines
by Richard (on 4. July 2025, 08:00)
693
95 %
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