This is a collection of some well known riddles. You can play "8 Queens", "Knight's tour", "Solo" and "Lights". For all games variations are offered and you can also computer search for a solution.
v1.9 - Added support for triangular and diagonal moves in Solo - On-board buttons (Undo, Restart, Solve) - A message appears when no more moves are left
v1.62 - Changed icon - Fixed Solo custom boards bug
v1.6 - New scores screen. - Better support of larger screens. - One new Solo theme. - Option for displaying connecting lines in Knight's tour.
v1.5 New puzzle selector
v1.4 Solo: Added custom boards feature. User can create and solve her own boards.
~Kostas Giannakakis
1.93 1.93
v1.91 - Added Lights Out
v1.9 - Added support for triangular and diagonal moves in Solo - On-board buttons (Undo, Restart, Solve) - A message appears when no more moves are left
v1.62 - Changed icon - Fixed Solo custom boards bug
v1.6 - New scores screen. - Better support of larger screens. - One new Solo theme. - Option for displaying connecting lines in Knight's tour.
v1.5 New puzzle selector
v1.4 Solo: Added custom boards feature. User can create and solve her own boards.