Zoom-in and see the checkers board and the chess board. Note the items on both the boards.
See the posters. Click on the locker and screen comes up with a puzzle that scrolls the name of sports. Answer is Sprinting and Boxing. Open the locker and get darts and the paper.
Put darts on the dartboard. Note the color of darts that hit bulls eye. See the text on the paper.
Zoom-in on the screen next to the door. Puzzle comes up: Kings + checkers. Answer is 16.
Next puzzles comes in: It has two color boxes and text Bull's Eye written. Answer is Green and Red. Door Opens.
Proceed to the next level!