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 (432) - Pointing Arrows
by Richard (on 11. July 2025, 08:00)
1692
96 %
unsolvedSudoku Variants Series (431) - Split Pea Lines
by Richard (on 4. July 2025, 08:00)
723
94 %
unsolvedSudoku Variants Series (430) - Sandwiched N-Sums
by Richard (on 27. June 2025, 08:00)
1072
95 %
unsolvedSudoku Variants Series (429) - German Whisper Dots
by Richard (on 20. June 2025, 08:00)
2022
96 %
unsolvedSudoku Variants Series (428) - Eight Lines
by Richard (on 13. June 2025, 08:00)
763
95 %
unsolvedSudoku Variants Series (427) - Nonodoku
by Richard (on 6. June 2025, 08:00)
923
96 %
unsolvedSudoku Variants Series (426) - Zipper Lines
by Richard (on 30. May 2025, 08:00)
993
93 %
unsolvedSudoku Variants Series (425) - Up to N
by Richard (on 23. May 2025, 12:00)
752
92 %
unsolvedSudoku Variants Series (424) - Oil and Water
by Richard (on 16. May 2025, 12:00)
1692
95 %
unsolvedSudoku Variants Series (423) - Nine Rooms
by Richard (on 9. May 2025, 12:00)
763
96 %
unsolvedSudoku Variants Series (422) - Irregular Dots
by Richard (on 2. May 2025, 12:00)
1251
88 %
unsolvedSudoku Variants Series (421) - Shifter Dots
by Richard (on 25. April 2025, 12:00)
922
89 %
unsolvedSudoku Variants Series (420) - Entropic Lines
by Richard (on 18. April 2025, 12:00)
1322
95 %
unsolvedSudoku Variants Series (419) - Dutch Whisper Lines
by Richard (on 11. April 2025, 12:00)
1022
93 %
unsolvedSudoku Variants Series (418) - Sum and Product Killer
by Richard (on 4. April 2025, 12:00)
814
96 %
unsolvedDutch Quali 25 appetizer (3) - Sudoku Sandwich
by Richard (on 3. April 2025, 06:00)
882
94 %
unsolvedSudoku Variants Series (417) - Sum or Product Killer
by Richard (on 28. March 2025, 12:00)
883
93 %
unsolvedDutch Quali 25 appetizer (2) - Sudoku Outside
by Richard (on 28. March 2025, 06:00)
852
92 %
unsolvedDutch Quali 25 appetizer (1) - Sudoku Ascending starters
by Richard (on 26. March 2025, 06:10)
583
93 %
unsolvedSudoku Variants Series (416) - Product Killer
by Richard (on 21. March 2025, 12:00)
1092
92 %
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