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Having to land exactly on the final square makes the game more exciting, since it gives people a chance to catch up, but it can also make the game take too long. Instead, you can let people roll higher than they need to reach 100. For a little more excitement, when someone reaches or passes 100, give each other player one turn to try to beat them. If someone would end up higher (such as 104 instead of 101), he wins. Two or more people can tie and win together this way, if they end up on the same square. Have each player play with two game pieces, each the same color so no one gets confused. When you roll the die, you can move one of your two pieces by that amount. You need to have both of your pieces reach the last square in order to win. In this variation, each player starts on square one. To take your turn, roll two dice instead of one. Choose one die and move your piece forward by that amount. With your remaining die, you can move another player forward by the amount on that die. For a much "meaner" variation, and potentially a much longer game, whenever you land exactly on the same square as another game piece, the piece that was already there moves all the way back to the beginning, and has to roll to get on the board again. Making your own Snakes and Ladders set is quite easy, as described in the tips. You can add your own touch by writing words, trivia questions, or other educational material in some or all of the squares. Here are some ideas:  For kids learning to read, write a simple word in each square. When a player moves his piece, he reads out each word he passes through.  Use the snakes and ladders to teach good ideas and discourage bad ones. For example, a ladder could travel from "I did my homework." to "I got good grades." A snake could go from "I didn't eat any fruits or vegetables today." to "My stomach feels bad."
Use a faster victory rule. Add a little strategy. Compete with your opponent. Make the game educational.