Sudoku

The rules for Sudoku are simple,just fill in the grid so that every row,every column ,and every 3x3 box contains digits 1 through 9.Resist the temptation of guessing and use logic instead!.Solving time for a Sudoku puzzle is typically between 10-30 minutes ,depending on your Sudoku skill and experience,so don't quit if you're Sudoku-ing for 5 minutes and getting nowhere.
Of course you can always switch to a game of poker where there is a little more excitement and adrenalin.