Sudoku
Finish the grid to exercise your brain.
It's a fun diversion
when you're cooped up by rain.
Write each number in every line,
by row and column, every number,
from one to nine.
Fill every block, each three by three.
No repeats - check and see.
Each grid, like each line,
must contain all nine.
No math is needed, but...
rules of logic must be heeded.
Have some fun,
spend a little time.
Then, to be like me,
turn the subject
into a rhyme.
Learn about Sudoku.
