A game called Immaculate Grid has popped up, and it's a simple yet challenging conceit: Each day, you get a 3x3 grid and nine guesses. The grid might be labeled by an accomplishment -- say ...

You know the drill: You have a 3x3 grid and each column and row requires you to fill in the name that fits the square -- a Heat player who also played for the Suns. A 20-plus PPG scorer for the ...

And as in classic sudoku, there is only one basic rule to remember: Each horizontal row, vertical column and 3x3 grid must contain every baseball position without repeating. It's that simple.