(Again, using the same example where you want to close 1, 2, and 6 you would click once on each of 2,3,5,7,8,9.) Since each coffin is clicked once at most, the puzzle is solvable in nine clicks or less.
After witnessing the scene, enter the casket that opens to return to the kitchen.
Go back into the foyer and solve the Spider puzzle, then enter the library to the far right.
The pieces given to each guest must touch on a side.
The final shape of the pieces for each guest doesn't matter.
The aim of this puzzle is to move the white pieces to occupy the squares where the black pieces are, and vice versa.
The bishops can only move diagonally and cannot move onto squares where they can be taken by the opposing colour.
Once you have done this, leave through the door and go right, then enter the door on the left and solve the Coin puzzle.
Turn left and continue to the end of the passage and enter the toy room.
Go through the door into the altar room and solve the Floor puzzle.
View the scene at the altar, then go through the door on the right into the laboratory, where you can view the two scenes before going over to the microscope at the back of the room to play the Microscope puzzle.
Leave the room, turn left and enter the bedroom in front of you (visit the library again if the door is locked).