Puzzle Ten Dark comes from Eugeniu Curcudel. It's a point scoring puzzle game. The object is to place the blocks to form rows and columns of 10. There is a scoring system for getting multiples, but I haven't figured it out.
Suppose you've place a 2/5 piece on the board. It's the last of the set of 3 pieces. Now you're given 3 new pieces and they're simply awful: 6/6 and 6/5 and 5/6/6. Click undo, watch a 30 second ad, replace the 2/5 piece and get 3 decent pieces. Still not satisfied? Click undo again!
My high score is almost 800 and I confess, I clicked undo at least 10 times.
Other Point Scoring Games Worthy of Your Time (Some are no longer available.)
Four Straight Lines
Virus Pop Smash
4 Way Puzzle