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 (439) - Top Heavy Parity
by Richard (on 29. August 2025, 06:00)
1102
93 %
unsolvedSudoku Variants Series (438) - Regular Dots
by Richard (on 22. August 2025, 06:00)
982
92 %
unsolvedSudoku Variants Series (437) - X-Sums or X-Products
by Richard (on 15. August 2025, 06:00)
823
94 %
unsolvedSudoku Variants Series (436) - X-Products
by Richard (on 8. August 2025, 08:00)
812
93 %
unsolvedSVS #435 Leftover: Slow Thermos
by Richard (on 1. August 2025, 08:00)
583
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)
1622
96 %
unsolvedSudoku Variants Series (431) - Split Pea Lines
by Richard (on 4. July 2025, 08:00)
693
95 %
unsolvedSudoku Variants Series (430) - Sandwiched N-Sums
by Richard (on 27. June 2025, 08:00)
1042
94 %
unsolvedSudoku Variants Series (429) - German Whisper Dots
by Richard (on 20. June 2025, 08:00)
1962
96 %
unsolvedSudoku Variants Series (428) - Eight Lines
by Richard (on 13. June 2025, 08:00)
753
95 %
unsolvedSudoku Variants Series (427) - Nonodoku
by Richard (on 6. June 2025, 08:00)
903
96 %
unsolvedSudoku Variants Series (426) - Zipper Lines
by Richard (on 30. May 2025, 08:00)
963
93 %
unsolvedSudoku Variants Series (425) - Up to N
by Richard (on 23. May 2025, 12:00)
712
92 %
unsolvedSudoku Variants Series (424) - Oil and Water
by Richard (on 16. May 2025, 12:00)
1632
96 %
unsolvedSudoku Variants Series (423) - Nine Rooms
by Richard (on 9. May 2025, 12:00)
743
96 %
unsolvedSudoku Variants Series (422) - Irregular Dots
by Richard (on 2. May 2025, 12:00)
1181
88 %
unsolvedSudoku Variants Series (421) - Shifter Dots
by Richard (on 25. April 2025, 12:00)
892
90 %
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