Once you've solved the simple puzzle below, try the tricky puzzle.
Connect the points in the figure on the left (Figure 1) to form the figure on the right (Figure 2), but don't lift your pencil, don't draw any lines twice, and only change directions on a point.
Hint: Drawing on your monitor with a pencil can prove more challenging than the puzzle itself. You may want to do this on paper by either printing the page or drawing the dots on paper by hand.
Thanks to Michael Lehenbauer's handy dandy Java Applet, you can also try to
solve the puzzle by clicking on the dots on the puzzle below if you don't want
to use paper (or write on your monitor):
View the solution or move on to the tricky puzzle.
