Interactive Java applet with more than 150 puzzles. Puzzles are offered at three difficulty levels and include solutions.

Online Chinese puzzle game using 7 basic shapes which can be combined into various shapes.

Online Chinese puzzle game includes a categorized collection of tangram figures that can be solved online. Also offers function to create a new figure.

The Chinese called this centuries-old game the "Seven-Board of Cunning". Adjust 7 geometric shapes to fit into one big shape.