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Friday, March 11, 2016

Fives Sudoku (Fun With Sudoku #190)

Recently I have posted Tens Sudoku puzzle. Fives Sudoku puzzle is very similar to Tens Sudoku puzzle in instruction but it is very different while solving this puzzle. In the Tens Sudoku, one has to take care of sum of number being 10 and there are only 4 combination forming the sum as 10 e.g. 1-9, 2-8, 3-7 and 4-6 pairs makes the sum 10. However in Fives Sudoku one has to take care of difference of adjacent number being 5 which make many combination of number using which number 5 can be obtained with addition or subtraction. While create this Fives Sudoku puzzle I missed any combination which could produce 5 and ended up creating the puzzle with multiple solution on my first few attempts :). 
Fives Sudoku puzzle recently appeared in 2nd round of WPF Sudoku Grand Prix 2016. This is when i prepared few puzzles of this type to practice for this championship. There is one more puzzle which I created that time. I will be posting remaining puzzle soon here.
This Fives Sudoku I am posting in Fun With Sudoku Series as 190th puzzle in this series.
Rules of Fives Sudoku
Classic Sudoku Rules apply. Additionally, adjacent cells containing numbers whose sum or difference is 5 are marked. Adjacent cells with no marking must not contain numbers whose sum or difference is 5.
Fives Sudoku (Fun With Sudoku #190)
Fives Sudoku (Fun With Sudoku #190)
Fives Sudoku (Fun With Sudoku #190) Answer

Previous Sudoku Tens Sudoku (Fun With Sudoku #189)

Below is solution of Liar XV Sudoku Puzzle which is published with title Liar XV Sudoku Puzzle(Fun With Sudoku #223)

Liar XV Sudoku (Fun With Sudoku #223) Puzzle Answer
Liar XV Sudoku (Fun With Sudoku #223) Puzzle Answer

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