Snap Attack is one of the best puzzle games out there. Challenging and very addictive, also, easy to understand & its a pick up and go game due to short rounds.
Wordament Snap Attack is a brand-new, fast-paced word-building tournament that challenges your brain in 2 1/2-minute rounds. Players from around the world compete on the same board, using the same clock, making as many Snaps as possible. At the end of each round, a real-time leaderboard shows how all participants ranked by score.
Snap Attack is free for Windows Phone only.