Logic Masters Deutschland e.V.

Title: Blow out the Candles
Type: Sudoku
Link: Penpa+ link to Blow out the Candles Sudoku You may use Normal/Large/Medium/Small Blue, Green, or Red numbers in any combination.
Link: F-puzzles link to Blow out the Candles Sudoku
Link: CTC app link to Blow out the Candles Sudoku
Variants: Little Killer, Kropki Pairs, XV Pairs, Thermometer, Between Lines, Quadruple, Extra Regions

There are no negative constraints of any kind.

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1) Sudoku

• Place the digits 1 through 9 once each in every row, column, and box.

2) Little Killer

• 2.1) Digits along the indicated diagonal must sum to the total.
• 2.2) Digits may repeat along the diagonal.

3) Kropki Pairs

• 3.1) Two cells adjacent to a black dot have a ratio of 1 to 2.
• 3.2) Two cells adjacent to a white dot are consecutive.

4) XV Pairs

• 4.1) Two cells adjacent to an X sum to 10.
• 4.2) Two cells adjacent to a V sum to 5.

5) Thermometer

• Numbers along a thermometer strictly increase the from the bulb.

6) Between Lines

• The numbers along a between line must be between the circles at the ends.

7) Quadruple

• The digits in a Quadruple circle must appear in the 4 surrounding cells, and can repeat if allowed by normal Sudoku.

8) Extra Regions

• The two 9 cell grey regions are extra regions. Each must contain a complete set of digits from 1 to 9.

9) Notes

• The cells which contain yellow are for decoration only.