Sudoku types for month May 2014

LMI Beginners' Sudoku Contest
There will be 4 Classic Sudokus in Round1.
The variations in Round2 in this month are Kropki Sudoku, No Knight Step Sudoku, Roman Sudoku, Even Sudoku,
Rules and examples are provided below.


Sudokus for May 2014 are written By Nikola Zivanovic

Classic Sudoku

Place the digits 1 through 9 into the empty cells in the grid so that each digit appears exactly once in each of the rows, columns, and bold outlined 3X3 boxes.

Answer key for the above Sudoku is : 416978325, 327186459

Kropki Sudoku

Apply Classic Sudoku rules.
If the two consecutive digits appear in two neighboring cells, they are separated by white dot. If digit in a cell is half of digit in the neighboring cell, then they are marked by black dot.

No Knight Step Sudoku

Apply Classic Sudoku rules.
No cell that is a knight-step away can contain the same digit.

Roman Sudoku

Apply Classic Sudoku rules.
Given hints represent numbers using roman notation. Some cells are either partially or fully filled, and it is part of solving to determine the cells that need to be added to.

Even Sudoku

Apply Classic Sudoku rules.
All shaded cells must contain even (2 or 4 or 6 or 8) digits. There is no restriction on white cells.

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