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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 (463) - Borderland
by Richard (on 17. April 2026, 06:00)
913
98 %
unsolvedSudoku Variants Series (462) - Hitlines
by Richard (on 10. April 2026, 06:00)
733
94 %
unsolvedSudoku Variants Series (461) - Dutch Arrows
by Richard (on 3. April 2026, 06:00)
1432
96 %
unsolvedEasy Peasy Sudoku Leftover (13) - Position Sums
by Richard (on 1. April 2026, 06:00)
663
95 %
unsolvedEasy Peasy Sudoku Leftover (12) - Cage Relations
by Richard (on 27. March 2026, 06:00)
792
97 %
unsolvedEasy Peasy Sudoku Leftover (11) - Killer Skyscrapers
by Richard (on 25. March 2026, 06:00)
753
91 %
unsolvedEasy Peasy Sudoku Leftover (10) - Little Palindromes
by Richard (on 20. March 2026, 06:00)
1052
95 %
unsolvedEasy Peasy Sudoku Leftover (09) - Killer Kropki
by Richard (on 18. March 2026, 06:30)
912
95 %
unsolvedEasy Peasy Sudoku Leftover (08) - Sum or Product Frame
by Richard (on 13. March 2026, 06:00)
942
94 %
unsolvedEasy Peasy Sudoku Leftover (07) - Zipper Lines ++
by Richard (on 11. March 2026, 06:00)
822
93 %
unsolvedEasy Peasy Sudoku Leftover (06) - Confetti Sums
by Richard (on 6. March 2026, 06:00)
763
93 %
unsolvedDutch Quali 26 appetizer - Sudoku Sandwiched N-Sums
by Richard (on 4. March 2026, 06:00)
712
95 %
unsolvedEasy Peasy Sudoku Leftover (05) - Thermometers - Removed bulbs
by Richard (on 4. March 2026, 06:00)
732
94 %
unsolvedEasy Peasy Sudoku Leftover (04) - Cage Relations
by Richard (on 27. February 2026, 06:00)
632
94 %
unsolvedDutch Quali 26 appetizer - Sudoku Position Sums
by Richard (on 25. February 2026, 06:02)
622
94 %
unsolvedEasy Peasy Sudoku Leftover (03) - Killer Skyscrapers
by Richard (on 25. February 2026, 06:00)
923
96 %
unsolvedEasy Peasy Sudoku Leftover (02) - Little Palindromes
by Richard (on 20. February 2026, 06:00)
1322
97 %
unsolvedEasy Peasy Sudoku Leftover (01) - Killer Kropki
by Richard (on 18. February 2026, 06:00)
883
95 %
unsolvedSudoku Variants Series (460) - Index Lines
by Richard (on 13. February 2026, 06:00)
1881
94 %
unsolvedSudoku Variants Series (459) - Distance Sums
by Richard (on 6. February 2026, 06:00)
1282
96 %
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