Puzzle Blog Posts With Keyword Variants
Anti-Knight Sudoku: Rules and Puzzle BookAnti-knight sudoku is an enjoyable variant of a standard sudoku puzzle. The rules are as follows: You must place 1-9 once in each row, column and 3x3 box of the grid, as with standard sudoku. However, there is also one new rule. The new rule is...
Added: 30 Apr 2020
Free Sudoku Plus Puzzle
Sudoku Plus is a variant of sudoku that you might not have seen before.
The puzzle grid itself is the same as usual: a 9x9 grid that you must place 1 - 9 in once per region (row, column and 3x3 box).
However there are far fewer givens in the puzzle...
Added: 24 Mar 2011
Sudoku Variants: How Many Are There?
It is probably impossible to come up with a definitive list of sudoku variants because the number of them is truly mind-boggling. And there are new types being created all the time. There is also some ambiguity about what counts as a sudoku variant: for...
Added: 21 Dec 2022