## Killer SuDoku

has arrived on this website!

The SuDoku Solver now handles Killer SuDokus of all complexities. You can create, solve and analyse these puzzles just as you could before with 'normal' SuDokus.

The Killer Solver is integrated into the existing SuDoku Solver. When you load a puzzle, the Solver understands which type of SuDoku it is. So to try it out, you just need to download the latest version of the free SuDoku Solver here.

To create a Killer SuDoku (from a newspaper or puzzle book), there is a very nice click-and-drag functionality to allow capture of the 'cages'. The free version allows you to create Killer SuDokus, but not to save or print them. Otherwise it is fully-functioning for 30 days.

To use the Killer Solver after that - and to extend its capabilities to include saving and printing - you can purchase a full copy here.

I think it is the best Killer SuDoku Solver out there - try it for free!

More screenshots can be seen below.

## What are Killer SuDokus?

They conform to all the rules of 'normal' SuDokus, but in addition they have Groups (or 'cages') that add up to a known total. The Groups are shown with a dashed-line boundary and with the total in the top-left corner.

A number cannot be repeated within a Group - as well as not being repeated in a Row, Column, or Box.

The first new strategy with Killer SuDokus is the '45 Rule'. Because each of the numbers 1 to 9 must appear once and only once in each Row, Column, or Box - so the total of each Row, Column, or Box will always be 45.

Killer SuDokus can be found in puzzle books or in newspapers like the Times and the Daily Telegraph.