All 2 entries tagged Deficit Sudoku

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October 01, 2010

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!


April 23, 2010

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


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Welcome to the blog of current UKPA sudoku champion, two-time Times national sudoku champion and general logic puzzle fan Tom Collyer.



Home of the original Friday Puzzles, each Friday I publish a 100% original and handmade logic puzzle, inspired by the world-famous Nikoli company.


How to play:
AkariFillominoHashiHeyawakeHitoriKakuroLITSMasyuNumberlinkNurikabeRipple EffectShikakuSlitherlinkSudokuSuraromuYajilin.

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Latest comments

  • I like the appearance of the solution. :P Nice one. by Prasanna Seshadri on this entry
  • I think I've seen something vaguely similar in some of Palmer's puzzles as well. To be honest I've a… by on this entry
  • That's two puzzles in a row where I find something I had used before. I know, not plagiarism; just g… by Bram on this entry
  • Kota, that's not really true. I had made my puzzle before going to the WPC already. Also I don't hav… by Bram on this entry
  • About 20 minutes, after restarting from a mistaken conclusion. by Bryce Herdt on this entry

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