Friday Puzzles #72

This week I am publishing puzzles as a sort of bridge burning ceremony. These were initially scheduled to be part of the forthcoming UKPA Sudoku Championship but have had to be left out for editorial reasons. This is obviously as painful as choosing which of your favourite offspring to save from the meat grinder, but now they are out there’s no going back.

Perhaps the best way of thinking about things is this: if these were the puzzles that got the chop, how good are the ones that survived going to be?

Enjoy!

    #088 Consecutive Sudoku – rated easy/10 points

(Digits in adjacent cells may be consecutive if and only if a bar between the cells is present)

    #089 Deficit Sudoku – rated easy/10 points

(Place the digits 1-9 exactly once in every row and column, and at most once in the 10 marked 8-cell regions.)

All puzzles © Tom Collyer 2009-10

P.S. Earlier versions of the consecutive had a bar missing, this one does not!

Friday Puzzles #41

So sudoku fans, with less than a week to go until the world sudoku championships, I’ve decided to spoil you rotten.

Here are three puzzles that will 100% definitely appear in the championships in a form quite similar to what I’m giving you. Additionally, I’m going to try and publish a puzzle a day until next Wednesday, each one a variant definitely appearing in Philly.

This week, I give you: Integer Division Sudoku, Surplus Sudoku and Deficit Sudoku.  Enjoy!

    #049 Integer Division Sudoku – rated easy

    #050 Surplus Sudoku – rated easy

    #051 Deficit Sudoku – rated easy

All puzzles © Tom Collyer 2009-10