Elio Landa is the name to look out for if you like your puzzle games simple, sleek, and smart, and Sum Links continues that tradition in a very math-y way. All you have to do to win each level is match the values on the left side of the screen by plotting paths between the numbers on the playing grid. Click and drag to make a line from one number to another, whether it's addition or subtraction, but be careful... numbers can only be used once, and you can't cross over an existing pathway with a new one... the old path will be rewritten. You may need to link up multiple numbers to get the value you want, making Sum Links a game of planning in addition to math, though diehard challenge enthusiasts might find the game a little too mellow to really sink their teeth into. If your like your puzzle games elegant and zen-like, Sum Links will suit the bill nicely.