To practice puzzles:
Log in if you aren't already.
Select Puzzle Practice from the main play menu or the menu at the upper left.
Solve the default puzzles or select the Themes button to practice specific puzzles.
Select up to 5 themes then click the Apply button.
Select the buttons at the bottom to receive a hint or show the solution.
Select the Analysis button to enter analysis mode or the Next Puzzle button to move to the next puzzle.