At the start of this challenge, a chest of drawers shall appear on the screen with the text "Mr. Trim is not in his shop. The children decide to look around. They find an old chest of drawers." appears below it; once you have pushed to continue the text "The bottom drawer is open. Inside are some coloured tiles and a piece of paper which says...." will appear at the bottom of the screen. Once you press again, the text "Three different tiles in every row. No two rows the same." will appear at the bottom of the screen - and once you have pushed for a third time this text will appear:
Once you have pushed for a fourth time, the text "Use the arrow keys to select a square. Press: 'R' to place a red tile. 'G' to place a green tile. 'W' to place a white tile." will appear at the bottom of the screen; if you accidentally place two identically-coloured tiles in the same row they will flash as the text "These two tiles are the same." appears at the bottom of the screen and you will have to push to remove the second one. Also, if you accidentally fill any row the same way you did a previous one, the six tiles in both rows will flash as the text "These two rows are the same." appears at the bottom of the screen, and you have to press to clear the duplicate one - however, once all six rows have been filled with three differently-coloured (and differently-arranged) tiles apiece, the chest's top drawer shall unlock and open as the following text appears at the bottom of the screen:
Once you push for a sixth time, the game goes to its fourth challenge, which involves moving labels on a picture of a bird to the right places.