Ripple Effect
"Ripple Effect" is an original Nikoli puzzle. The job is to fill in numbers in blank cells by the rules. Keep checking what may go and filling in, cell by cell.Rules
1. The area, divided by bold lines, is called "Room".
Fill in all empty cells with numbers under following rules.
2. Each Room contains consecutive numbers starting from 1.
3. If a number is duplicated in a row or a column, the space between
the duplicated numbers must be equal or larger than the value of the number.