Zengaku.com | Daily Puzzle May 20
- Each empty box needs to be filled with a digit from 1 to 9
- Each digit will occur only ONCE in each row and each column
- Boxes that have a circle between them have consecutive digits
- Likewise, boxes that do NOT have a circle between them do NOT have consecutive digits
- Columns must total the number above them, while rows must total the number on their left
- This form of puzzle was featured in the 2004 World Puzzle Federation Qualifiers
