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
unsolvedEasy Peasy Sudoku Advent (18) - Snake
by Richard (on 18. December 2025, 06:00)
1911
92 %
unsolvedEasy Peasy Sudoku Advent (17) - Sum and product killer
by Richard (on 17. December 2025, 06:00)
1641
92 %
unsolvedHSSC Appetizer (1) - Sudoku Mathrax
by Richard (on 16. December 2025, 06:00)
1153
96 %
unsolvedEasy Peasy Sudoku Advent (16) - Y-Sums
by Richard (on 16. December 2025, 06:00)
1422
97 %
unsolvedEasy Peasy Sudoku Advent (15) - Thermometers - Removed Bulbs
by Richard (on 15. December 2025, 06:00)
1173
93 %
unsolvedEasy Peasy Sudoku Advent (14) - Consecutive Sums
by Richard (on 14. December 2025, 06:00)
1762
96 %
unsolvedEasy Peasy Sudoku Advent (13) - Zipper Lines ++
by Richard (on 13. December 2025, 06:00)
1672
95 %
unsolvedEasy Peasy Sudoku Advent (12) - Greater Than X
by Richard (on 12. December 2025, 06:00)
1502
96 %
unsolvedEasy Peasy Sudoku Advent (11) - Killer Skyscrapers
by Richard (on 11. December 2025, 06:00)
1732
94 %
unsolvedEasy Peasy Sudoku Advent (10) - Product Ltd
by Richard (on 10. December 2025, 06:00)
1492
95 %
unsolvedEasy Peasy Sudoku Advent (09) - Counting Neighbours
by Richard (on 9. December 2025, 06:00)
1602
96 %
unsolvedEasy Peasy Sudoku Advent (08) - Sum Triplets
by Richard (on 8. December 2025, 06:00)
1912
94 %
unsolvedEasy Peasy Sudoku Advent (07) - Star Battle Sandwich
by Richard (on 7. December 2025, 06:00)
1702
95 %
unsolvedEasy Peasy Sudoku Advent (06) - Cold Arrows
by Richard (on 6. December 2025, 06:00)
1691
94 %
unsolvedEasy Peasy Sudoku Advent (05) - Confetti Sums
by Richard (on 5. December 2025, 06:00)
1781
94 %
unsolvedEasy Peasy Sudoku Advent (04) - Sum or Product Frame
by Richard (on 4. December 2025, 06:00)
1472
92 %
unsolvedEasy Peasy Sudoku Advent (03) - Killer Kropki
by Richard (on 3. December 2025, 06:00)
1792
94 %
unsolvedEasy Peasy Sudoku Advent (02) - Odd-Even Thermometers
by Richard (on 2. December 2025, 06:00)
2382
94 %
unsolvedEasy Peasy Sudoku Advent (01) - Position Sums
by Richard (on 1. December 2025, 06:00)
1962
96 %
unsolvedSudoku Variants Series (452) - Sum Skyscrapers
by Richard (on 28. November 2025, 06:00)
733
96 %
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