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!

	Description	solved	Rating
	Sudoku Variants Series (145) - First even-odd Sudoku by Richard (on 6. September 2016, 00:00)	114	91 %
	Sudoku Variants Series (144) - Cross Sudoku by Richard (on 30. August 2016, 00:00)	122	84 %
	Sudoku Variants Series (143) - Triple Double Sudoku by Richard (on 23. August 2016, 00:00)	120	88 %
	Sudoku Variants Series (142) - DNA Sudoku by Richard (on 16. August 2016, 00:00)	129	88 %
	Sudoku Variants Series (141) - Perfect Primes Sudoku by Richard (on 9. August 2016, 00:00)	119	94 %
	Sudoku Variants Series (140) - Odd/Even Skyscraper Sudoku by Richard (on 2. August 2016, 00:00)	125	90 %
	Sudoku Variants Series (139) - Queen Sudoku by Richard (on 26. July 2016, 00:00)	185	83 %
	Sudoku Variants Series (138) - Star Battle Sudoku by Richard (on 19. July 2016, 00:00)	127	80 %
	Sudoku Variants Series (137) - Prime Sums Sudoku by Richard (on 12. July 2016, 00:00)	129	91 %
	Sudoku Variants Series (136) - Greater Sudoku by Richard (on 5. July 2016, 00:00)	193	85 %
	Sudoku Variants Series (135) - Surplus Sudoku by Richard (on 28. June 2016, 00:00)	140	84 %
	Sudoku Variants Series (134) - Little Grey Cell Killer Sudoku by Richard (on 21. June 2016, 00:00)	115	87 %
	Sudoku Variants Series (133) - Ratio Sudoku by Richard (on 14. June 2016, 00:00)	135	88 %
	Sudoku Variants Series (132) - # Sudoku by Richard (on 7. June 2016, 00:00)	129	83 %
	Sudoku Variants Series (131) - Equal Products Sudoku by Richard (on 31. May 2016, 00:00)	116	86 %
	Sudoku Variants Series (130) - Diagident Sudoku by Richard (on 24. May 2016, 00:00)	130	85 %
	Sudoku Variants Series (129) - Consecutive Sandwich Sudoku by Richard (on 17. May 2016, 00:00)	123	89 %
	Sudoku Variants Series (128) - Odd Grey Cell Synapse Sudoku by Richard (on 10. May 2016, 00:00)	127	79 %
	Sudoku Variants Series (127) - Full Rank Sudoku by Richard (on 3. May 2016, 00:00)	146	89 %
	Sudoku Variants Series (126) - Small Neighbours Sudoku by Richard (on 26. April 2016, 00:00)	129	88 %