I just bought Galaxy Trucker and it's quite a blast. One thing is confusing me though. When you place a piece on the board, does it have to connect to the other pieces immediately, or can you place it into a blank square and HOPE you connect up to it eventually?
I would guess that the answer is no and that pieces must be adjacent to previously placed tiles to count as a placed piece and thus to allow the player to pick a new piece from the pile. But on the other hand, this would be an extremely risky maneuver for anyone not particularly experienced with the game give the threat of credit loss and illegal ship connections.
If the answer is no, can you "connect" two tiles with blank sides during construction and hope to connect the non-blank sides later?
You must always add to your ship. So you cannot:
1) Place a piece on a completely isolated space
2) Connect only blank-to-blank.
Your ship must be legal at all times.