💡📝João Neto wrote on Fri, Jun 4, 2004 05:44 PM UTC:
Hi, indeed Roberto got it right in his ZRF.
The idea is that the remaining sliding square should not be at the
opposite edge (so, it will not go out of bounds). Both sliding squares
must be diagonally or orthogonally adjacent to the main 6x7 board.
The last pushed square on the 6x7 board can have pieces, except a King.
Sorry about the wording, natural language can be though :-)
Joao Neto