Originally posted by Mephisto2
I have a problem with the wording of the puzzle, especially what b) means. Here is a silly try, though:
There are many 'solutions' like
- black queen on c2 or
- black pawn on c2 or
- black bishop on c2
AND white is on the move
...[text shortened]... on the move
c) no doubt about that
d) black is not in stalemate
We can adjust any of those to give a fine answer, Add a black knight on B1 to your setup. White is clearly in stalemate. It is not double stalemate because Black can move, but it is also clear that Black must have moved last, bacause there is no way that White could have moved into that position on his last move, and so Black cannot legally move because he would be making two consecutive moves.
Given the 10 pieces extra stipulation, we can now add 8 more random Black pieces, as long as they don't put White in check and could have been moved to their positions legally.
You may ask - how was this silly position reached? Well, one way is that White's king could have been sat at a1 since it was checked by Black's piece on c2. White obviously had some other piece which might have moved to b1 last move and has just been taken by Black's knight.