Arranges the house pieces so only your chosen squares stay visible. Switch to Pick squares to choose them by hand.
The 1×1 block lives in the notch under the board. Leave three squares uncovered and it stays there; leave four and it comes out of the puzzle altogether, freeing the notch for the other pieces. Every piece you set aside frees five more squares, so 3, 4, 8, 9, 13… all work. Turn off flipping if your wooden pieces are painted on one side only.