Try to leave either as few or as many marbles as you can. You can use your own pictures, and control the number and sizes of pieces. JigsawPuzzle An animated jigsaw puzzle. JVMine A nice, free MineSweeper clone with source included. A solid Java-clone of the famous Microsoft Mines Game.
Source is included and well-documented.
Out is a simple little game modeled after a hand held game with a similar title. Memory Reminiscent of Concentration, this fast paced game can be configured with your own images. The object of the game is to place the 4 Queens and 4 Knights in positions that do not threaten each other. Destroy all of the duplicate bombs in a set number of moves. Simon This is the classic Simon game in Java.