This position was reached in a normal chess game:

                   BLACK
     +---+---+---+---+---+---+---+---+
     | B |///| K |/R/| N |///|   |///|  
     +---+---+---+---+---+---+---+---+
     |/P/| P |///|   |///|   |///|   |  
     +---+---+---+---+---+---+---+---+
     |   |///| Q |/K/|   |/R/|   |///|   
     +---+---+---+---+---+---+---+---+
     |///|   |///|   |///|   |///|   |
     +---+---+---+---+---+---+---+---+
     |   |///|   |///|   |///|   |///|
     +---+---+---+---+---+---+---+---+
     |///|   |///|   |///|   |///|   |
     +---+---+---+---+---+---+---+---+
     |   |///|   |///|   |///|   |///|
     +---+---+---+---+---+---+---+---+
     |///|   |///|   |///|   |///|   |
     +---+---+---+---+---+---+---+---+
                   WHITE

a) Identify the color of each piece.
b) What was the last move?

(In reply to Opening Moves (part spoiler) by Vernon Lewis)

Actually, the bishop on A8 could have been a white pawn which had made it to the eighth rank and was then transformed into a bishop which would allow the B7 pawn to be black.  

                   BLACK
     +---+---+---+---+---+---+---+---+
     |wB |///|bK |wR/|wN |///|   |///|  
     +---+---+---+---+---+---+---+---+
     |wP/|bP |///|   |///|   |///|   |  
     +---+---+---+---+---+---+---+---+
     |   |///|wQ |wK/|   |wR/|   |///|   
     +---+---+---+---+---+---+---+---+
     |///|   |///|   |///|   |///|   |
     +---+---+---+---+---+---+---+---+
     |   |///|   |///|   |///|   |///|
     +---+---+---+---+---+---+---+---+
     |///|   |///|   |///|   |///|   |
     +---+---+---+---+---+---+---+---+
     |   |///|   |///|   |///|   |///|
     +---+---+---+---+---+---+---+---+
     |///|   |///|   |///|   |///|   |
     +---+---+---+---+---+---+---+---+
                   WHITE

Posted by Eric on 2006-01-09 19:24:01