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 (238) - Calcudoku by Richard (on 28. August 2018, 00:00)	123	89 %
	Sudoku Variants Series (237) - Before 1 - After 9 Sudoku by Richard (on 14. August 2018, 00:00)	111	91 %
	Sudoku Variants Series (236) - Sum of Them Sudoku by Richard (on 31. July 2018, 00:00)	92	91 %
	Sudoku Variants Series (235) - Outside Parity Sudoku by Richard (on 17. July 2018, 00:00)	123	84 %
	Sudoku Variants Series (234) - Four in a grow Sudoku by Richard (on 3. July 2018, 00:00)	115	83 %
	Sudoku Variants Series (233) - TeeTotal Sudoku by Richard (on 19. June 2018, 00:00)	119	91 %
	Sudoku Variants Series (232) - Sudoku Plusminus by Richard (on 5. June 2018, 00:00)	119	90 %
	Sudoku Variants Series (231) - Odd/Even Bridge Sudoku by Richard (on 22. May 2018, 00:00)	126	92 %
	Sudoku Variants Series (230) - Odd/Even Count Sudoku by Richard (on 8. May 2018, 00:00)	115	93 %
	Sudoku Variants Series (229) - Double Kropki Sudoku by Richard (on 24. April 2018, 00:00)	126	94 %
	Sudoku Variants Series (228) - Hit the target Sudoku by Richard (on 10. April 2018, 00:00)	120	81 %
	Sudoku Variants Series (227) - One Knight Step Sudoku by Richard (on 3. April 2018, 00:00)	130	88 %
	Sudoku Variants Series (226) - Double Scattered Sudoku by Richard (on 27. March 2018, 00:00)	117	87 %
	Sudoku Variants Series (225) - Greater than X Sudoku by Richard (on 20. March 2018, 00:00)	105	81 %
	Sudoku Variants Series (224) - Sum or Product Frame Sudoku by Richard (on 13. March 2018, 00:00)	113	92 %
	Sudoku Variants Series (223) - Sundoku by Richard (on 6. March 2018, 00:00)	132	89 %
	Sudoku Variants Series (222) - Traffic Lights Sudoku by Richard (on 27. February 2018, 00:00)	113	88 %
	Sudoku Variants Series (221) - Nine Pins Sudoku by Richard (on 20. February 2018, 00:00)	132	87 %
	Sudoku Variants Series (220) - One Way Sudoku by Richard (on 13. February 2018, 00:00)	154	74 %
	Sudoku Variants Series (219) - Confetti Sudoku by Richard (on 6. February 2018, 00:00)	113	85 %