The board now shown after the first move is blank. That isn't proof of what was shown to the second player during the game, but if the second player was indeed confronted with a blank board after the first Pass, the only legal moves were to Pass or Resign.
Note: During the first move, the first tile that the first player places puts the coordinates of three cells into the URL, but Pass shows no cells' coordinates, so I expect the second player faced a blank board.
“Pass” should only be a legal move if it's impossible to play a tile. Similar to reversi, where you can only pass if you're unable to place stone. I hope this is fixed, and that no-one esploits this bug while we wait for it to be fixed.
I had reported the bug to Richard last week in case he didn't check this sub-forum.
I think it's okay to allow players to pass any time during the game, but if the first player passes, the second player must be able to place a piece onto the board.
@Marius: “'Pass' should only be a legal move if it's impossible to play a tile.”
It also makes sense to pass if you're sufficiently ahead. Especially if your opponent just passed. But I agree that Pass should not be a legal initial move of the game.
