One piece is missing from our 'slider puzzle.' This, of course, is by intention – otherwise this item wouldn't work.
It has been a painstaking job to prepare these tiles in tongue and groove fashion so that they will replicate the old hand-held puzzles that featured sliding tiles.
It is our intention to mount this on the Wittenberg door, though a few logistical issues may still need to be conquered. For example, the type of paint we use, the angle at which the puzzle is tilted from the door, the ease with which various tiles can slide around the board.
But – as with all previous problems that we have encountered – "where there's a will, there's a will." A will to work and succeed there most definitely is!