First, collect fish and a chess piece from the wall.

Put the fish in the mouth of the specimen bear at the door, and then open the box under the specimen to get a chess piece. A kettle was collected from the cupboard next to the specimen and split to get a chess piece.

Lift the upper right corner of the carpet and get a chess piece again.

At this time, when we turn on the clock at the door, we will find that its cycloid is consistent with the number of strings of the harp at the bottom of the screen. Then we will observe that the small wooden block on the cycloid of the clock is 5 14253 from top to bottom. Ok, play the harp once in this order and take a key.

Open the bottom drawer of the box above the harp with the key. Take a chess piece and the rules of chess.

Now we split the pot and didn't get the chess pieces. Now we have five pieces. Observing the five pieces separately, you will find that each piece has a coordinate relative to the chessboard. Now click on the chessboard in the middle of the room and put each piece in the corresponding position. Because it is impossible to put chess pieces on the board in the game, I made a virtual board. Because the password box says "safe location", according to the rules of chess, we can calculate that the password is X57X 1X32.

Open the box, get a dagger, disassemble it, install it on the gate, and unlock the final mini-game.