Logic Masters India - April 2012 Sudoku Test

Logic Masters India announces the April 2012 Sudoku Test 'Killing Time'. It was held from 14th-16th April, 2012.
The author of the puzzles is Rishi Puri.

Championship Page
Download Instruction Booklet
Download Puzzle Booklet
Password is RvUeDeRrA
Forum

Nice to see Rishi back. This test is based on variants of Killer Sudoku.

I'm not a big fan of Killer Sudoku, but this test will surely prove to give a good insight into Killer-solving techniques.

A nice, enjoyable test. Some really nice Killer sudokus. I had trouble solving the Toroidal and the Little Killer, but otherwise the solves were good.
My favourite were Greater Than Killer and Twin Killer.


Results

Solving Killer Sudoku: (Unique Combinations)

This is the basic concept you need to use for solving a Killer Sudoku. The list below gives the only possible combination of numbers for a given sum in different sizes of area (number of cells).

There are more such sets with higher area sizes, but these are the most commonly ones used.
The combination of numbers can occur in any order, but using these simple combinations can be very useful.

Other Solving Techniques

Puzzle No.171

This is a Killer Sudoku from the Bulgarian Sudoku Championship - 2007.

PUZZLE NO.171: KILLER SUDOKU


SOLUTION:

Puzzle No.170

This is a Killer Sudoku from Sudokucup 1 made by Karel Tesar.

PUZZLE NO.170: KILLER SUDOKU


SOLUTION:

Puzzle No.164

This is a Killer Sudoku from the Bulgarian Sudoku Championship - 2007.

PUZZLE NO.164: KILLER SUDOKU


SOLUTION:

Puzzle No.158

This is a Killer Sudoku.

PUZZLE NO.98: KILLER SUDOKU


SOLUTION:

Rules of 'Killer Sudoku'

Place numbers in the grid such that each row, column and 3x3 box contain the numbers 1 to 9. The sum of the digits within each dotted subarea equals the number given in the top left corner of that subarea. No digit can occur more than once in each subarea.

EXAMPLE:


UNIQUE SOLUTION: