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 (363) - Potpourri N-Sums Sudoku by Richard (on 16. March 2022, 06:29)	80	95 %
	Dutch Quali 22 Leftover: Capsules by Richard (on 11. March 2022, 20:15)	82	87 %
	Dutch Quali 22 Leftover: Pole Position Sudoku by Richard (on 11. March 2022, 20:15)	111	92 %
	Sudoku Variants Series (362) - Star Sums Sudoku by Richard (on 9. March 2022, 00:00)	80	95 %
	Sudoku Variants Series (361) - Sum Sum Sudoku by Richard (on 2. March 2022, 00:00)	93	94 %
	Sudoku Variants Series (360) - Remote XV Sudoku by Richard (on 16. February 2022, 00:00)	84	97 %
	Sudoku Variants Series (359) - Sudoku HiLo Odd-Even by Richard (on 9. February 2022, 00:00)	88	96 %
	Sudoku Variants Series (358) - Sandstorm Skyscrapers Sudoku by Richard (on 2. February 2022, 00:00)	91	95 %
	Sudoku Variants Series (357) - X-Parity Sudoku by Richard (on 26. January 2022, 00:00)	72	96 %
	Sudoku Variants Series (356) - 159 Sandwiches Sudoku by Richard (on 19. January 2022, 00:00)	79	96 %
	Sudoku Variants Series (355) - Opposite X-Sums Sudoku by Richard (on 12. January 2022, 00:00)	95	96 %
	Sudoku Variants Series (354) - Japanese Sums Sudoku by Richard (on 5. January 2022, 00:00)	106	96 %
	Sudoku Variants Series (353) - Hostile Parity Sandwich Sudoku by Richard (on 29. December 2021, 00:00)	74	96 %
	Sudoku Variants Series (352) - Friendly Parity Sandwich Sudoku by Richard (on 22. December 2021, 00:00)	80	97 %
	Sudoku Variants Series (351) - Double Trouble Killer Sudoku by Richard (on 15. December 2021, 00:00)	78	96 %
	Sudoku Variants Series (350) - David and Goliath Sudoku by Richard (on 8. December 2021, 00:00)	171	93 %
	Sudoku Variants Series (349) - X-Distance Sudoku by Richard (on 1. December 2021, 00:00)	140	98 %
	Sudoku Variants Series (348) - Line Differences Sudoku by Richard (on 24. November 2021, 00:00)	64	93 %
	Sudoku Variants Series (347) - Sudoku Connon by Richard (on 17. November 2021, 00:00)	68	97 %
	Sudoku Variants Series (346) - All primes Sudoku by Richard (on 10. November 2021, 01:00)	82	88 %