Odd-Even Anti-Knight Sudoku 2013 - 1

A hurriedly made even odd sudoku with the anti-knight constraint.

Rules of classic sudoku apply. Grey cells can contain only even digits. A digit cannot repeat at a cell which is at a knights step from itself.

Squared Outline Sudoku 2013 - 1

Today we will tackle another variant which is expected at the Times Sudoku Championship this weekend.

Rules of Classic Sudoku apply. Additionally, No digit can repeat on any of the marked diagonals.

Odd Sum Sudoku 2013 - 1

With the Times Sudoku Championship finals slated for this weekend, there were a few requests for an Odd Sum Sudoku. I managed to create an easy one as time is short. So have a go at it.

Rules of Classic Sudoku apply. Additionally adjacent cells marked in grey always will have digits whose sum is an odd number.

Non-Consecutive Sudoku 2013 - 4

Ok, having done with experimenting on Trio sudokus, it is time to get back to normal variants. This is keeping in mind the Finals of the Times Sudoku Championship.

So today we have a look at a Non-Consecutive Sudoku.

Rules of classic Sudoku apply. Additionally orthogonally adjacent cells cannot contain consecutive digits.

Trio Knights Non Consecutive Sudoku 2013 - 1

In continuation of twisting up the Trio, I decided to take it a step further. Thought why not try it with a Knights Non-consecutive constraint. This has turned out better than yesterdays twist.

Rules of classic Sudoku apply. Cells which are at a Knights step from each other cannot contain consecutive digits. Grey cells can contain only the digits 1,2 and 3. Yellow cells can contain only the digits 4,5 and 6.