So you are a seasoned Sudoku player and you feel that you have conquered all variants of the game that you have come across; you should try Jigsaw Sudoku. First of all, you need to recap on the rules of Sudoku. The game is made of a 9X9 grid which is divided into 3X3 squares. This makes the full grid have a 9X9 square configuration. The 3X3 grids have to be filled with the numbers 1 to 9 without repeating a single number. After that, the columns and the rows of the 9X9 grid should have the numbers 1 to 9 but they should not repeat. Now these are the simple rules, so here is where a spanner is thrown into the works. The game has got another configuration which has changed the grid and made it to look like it has stairs. These configurations comprise of 9 squares, and the numbers in those regions must also never repeat. Now you seem like you are scratching your head; the regions must also be filled with the numbers 1 to 9 but they must not repeat. This is what makes the game worthy of a seasoned player like you. You have to get down and see what strategy you are going to use to solve this puzzle. Will you fill in the 3X3 grids first or will you fill in the regions; the regions are shown using a thick line. This is one game that will give you a challenge even is you are an experienced Sudoku solver. There is a hint button that you can use, but this will earn you a penalty of 100 seconds in your timing; where is the fun and challenge in using the hint button? Try and solve the whole puzzle without using the hint button; you can use it only when truly stuck.