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 (460) - Index Lines
by Richard (on 13. February 2026, 06:00)
1101
96 %
unsolvedSudoku Variants Series (459) - Distance Sums
by Richard (on 6. February 2026, 06:00)
952
97 %
unsolvedSudoku Variants Series (458) - Divisible Neighbours
by Richard (on 30. January 2026, 06:00)
522
94 %
unsolvedSudoku Variants Series (457) - Hot Arrows
by Richard (on 23. January 2026, 05:16)
1222
93 %
unsolvedSudoku Variants Series (456) - Double Decker Sandwich
by Richard (on 16. January 2026, 06:00)
952
95 %
unsolvedSudoku Variants Series (455) - Equal split lines
by Richard (on 9. January 2026, 06:00)
942
95 %
unsolvedSudoku Variants Series (454) - Little Thermometers
by Richard (on 2. January 2026, 06:00)
1082
94 %
unsolvedSudoku Variants Series (453) - S-Doku
by Richard (on 26. December 2025, 06:00)
1142
95 %
unsolvedSudoku Advent (Extra) - Thx Gabi! (Delimited Kropki)
by Richard (on 25. December 2025, 06:00)
1362
91 %
unsolvedEasy Peasy Sudoku Advent (24) - Delimited Kropki
by Richard (on 24. December 2025, 06:00)
1691
93 %
unsolvedEasy Peasy Sudoku Advent (23) - Parity Poopers
by Richard (on 23. December 2025, 06:00)
1332
93 %
unsolvedHSSC Appetizer (4) - Anti Knight
by Richard (on 22. December 2025, 06:00)
1402
89 %
unsolvedEasy Peasy Sudoku Advent (22) - Summing Up
by Richard (on 22. December 2025, 06:00)
982
90 %
unsolvedEasy Peasy Sudoku Advent (21) - Cage Relations
by Richard (on 21. December 2025, 06:00)
1022
92 %
unsolvedHSSC Appetizer (3) - Weiqi
by Richard (on 20. December 2025, 06:00)
413
92 %
unsolvedEasy Peasy Sudoku Advent (20) - Assorted Sandwiches
by Richard (on 20. December 2025, 06:00)
1532
95 %
unsolvedEasy Peasy Sudoku Advent (19) - Little Palindromes
by Richard (on 19. December 2025, 06:00)
1762
95 %
unsolvedHSSC Appetizer (2) - Sudoku XV
by Richard (on 18. December 2025, 06:00)
1063
88 %
unsolvedEasy Peasy Sudoku Advent (18) - Snake
by Richard (on 18. December 2025, 06:00)
1791
91 %
unsolvedEasy Peasy Sudoku Advent (17) - Sum and product killer
by Richard (on 17. December 2025, 06:00)
1541
93 %
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