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
newSudoku Variants Series (464) - Greater than Killer
by Richard (on 24. April 2026, 06:00)
952
97 %
unsolvedSudoku Variants Series (463) - Borderland
by Richard (on 17. April 2026, 06:00)
653
98 %
unsolvedSudoku Variants Series (462) - Hitlines
by Richard (on 10. April 2026, 06:00)
563
92 %
unsolvedSudoku Variants Series (461) - Dutch Arrows
by Richard (on 3. April 2026, 06:00)
1202
96 %
unsolvedEasy Peasy Sudoku Leftover (13) - Position Sums
by Richard (on 1. April 2026, 06:00)
513
94 %
unsolvedEasy Peasy Sudoku Leftover (12) - Cage Relations
by Richard (on 27. March 2026, 06:00)
662
99 %
unsolvedEasy Peasy Sudoku Leftover (11) - Killer Skyscrapers
by Richard (on 25. March 2026, 06:00)
693
91 %
unsolvedEasy Peasy Sudoku Leftover (10) - Little Palindromes
by Richard (on 20. March 2026, 06:00)
912
95 %
unsolvedEasy Peasy Sudoku Leftover (09) - Killer Kropki
by Richard (on 18. March 2026, 06:30)
832
95 %
unsolvedEasy Peasy Sudoku Leftover (08) - Sum or Product Frame
by Richard (on 13. March 2026, 06:00)
852
94 %
unsolvedEasy Peasy Sudoku Leftover (07) - Zipper Lines ++
by Richard (on 11. March 2026, 06:00)
732
93 %
unsolvedEasy Peasy Sudoku Leftover (06) - Confetti Sums
by Richard (on 6. March 2026, 06:00)
703
93 %
unsolvedDutch Quali 26 appetizer - Sudoku Sandwiched N-Sums
by Richard (on 4. March 2026, 06:00)
642
95 %
unsolvedEasy Peasy Sudoku Leftover (05) - Thermometers - Removed bulbs
by Richard (on 4. March 2026, 06:00)
652
94 %
unsolvedEasy Peasy Sudoku Leftover (04) - Cage Relations
by Richard (on 27. February 2026, 06:00)
562
95 %
unsolvedDutch Quali 26 appetizer - Sudoku Position Sums
by Richard (on 25. February 2026, 06:02)
562
96 %
unsolvedEasy Peasy Sudoku Leftover (03) - Killer Skyscrapers
by Richard (on 25. February 2026, 06:00)
873
96 %
unsolvedEasy Peasy Sudoku Leftover (02) - Little Palindromes
by Richard (on 20. February 2026, 06:00)
1252
97 %
unsolvedEasy Peasy Sudoku Leftover (01) - Killer Kropki
by Richard (on 18. February 2026, 06:00)
813
95 %
unsolvedSudoku Variants Series (460) - Index Lines
by Richard (on 13. February 2026, 06:00)
1691
95 %
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