Adds Up

Players take turns placing a number tile on a grid (11 x 11). When a row or column is formed which sums up to ten, the player who placed the last tile gets as many points as the number of tiles involved. Some "double" or "triple" squares exist which increase the players' points. The player with most points after 100 tiles is the winner. There are : 40x tiles with the number 1 _________30x ________________ 2 _________20x ________________ 3 _________10x _________________4