Logic Masters Deutschland e.V.

Title: Don't be sad--2 outta 3 ain't bad!
Type: Sudoku
Link: F-puzzles link to Don't be sad--2 outta 3 ain't bad! Sudoku
Link: CtC App link to Don't be sad--2 outta 3 ain't bad! Sudoku
Variants: Sandwich, X-Sums, Sky Scraper, Thermometer, V, Between Lines

Normal Sudoku and constraint rules apply with an exception!

The numbers outside of the grid are either Sandwich, X-Sum, or Sky Scraper. For each clue, 2 out of 3 (and only 2) constraints are correct. Example: A clue could be Sandwich and X-Sum but not Sky Scraper. Or, Sandwich and Sky Scraper but not X-Sum. Or, X-Sum and Sky Scraper but not Sandwich.

For each constraint of Thermometer, V, and Between Lines; 2 out of 3 (and only 2) occurrences are correct. Example: Two V clues are correct but the third occurrence is not.

No bifurcation or guessing is required.

0) Sudoku

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

1) Sandwich

• The number outside of the grid is the sum of the digits between the 1 and 9 in the row or column.

2) X-Sums

• The number outside of the grid is the sum of the first X digits where X is the first digit in the row or column.

• 3.1) The number outside of the grid is the number of digits seen starting from that number in the row or column and continuing.
• 3.2) Larger digits obscure smaller digits.
• a) The cells represent buildings with the height equal to the digit in the cell.
• b) Larger numbers obscure smaller numbers behind them. Example 1: A 6 obscures the digits 1 2 3 4 5. Example 2: A valid Sky Scraper of 5 could be 341625798. 4 obscures the 1. 6 obscures the 2 and 5. 9 obscures the 8. 34679 are the 5 digits seen.

4) Thermometer

• The digits along a thermometer must increase from the bulb end.

5) V

• 5.1) Two cells adjacent to a V sum to 5.
• 5.2) Not all V's are given

6) Between Lines

• Digits on the line between the circles must be between but not the same as the digits in the circles.