Piece-Drop Mate

Piece-drop Mate #2

Here's a third one and an interesting one at that:

Your task is to place a piece on the board as White and checkmate Black.

The correct answer is the one which places the lowest-value piece possible on the board to checkmate Black.

Outside of this piece drop, all rules of regular chess apply, including piece limits (i.e. no more than 8 pawns can be on the board at 1 point.)

Good luck! ;)


2 Answers 2


I think

3 points is minimum


a knight goes on f7. One of the three knights is a promoted pawn

  • $\begingroup$ Whoa, I didn't expect you to solve it that fast! $\endgroup$ Commented Jul 27, 2019 at 22:09
  • $\begingroup$ I can't even mark it correct yet! $\endgroup$ Commented Jul 27, 2019 at 22:10
  • $\begingroup$ Now I'll have to make a 4th one already! :( $\endgroup$ Commented Jul 27, 2019 at 22:11

Since the puzzle doesn't say that the checkmate must be immediate, allowing for a placement and then a move is made with mate, I believe that under these circumstances:

1 point is the minimum


A pawn on g6, and move the White rook to h7 with checkmate to follow right away. The pawn can legally be there, as it has from 4 captures from it's home square on c2.

  • $\begingroup$ I said "put a white piece on the board and checkmate black." This implies that the placement checkmates Black. $\endgroup$ Commented Jul 27, 2019 at 22:43
  • $\begingroup$ Also, I said that all rules of chess apply, meaning that it would be Black to move after @g6, and Black could play Qxc1# $\endgroup$ Commented Jul 27, 2019 at 22:44
  • 1
    $\begingroup$ But nice idea :) $\endgroup$ Commented Jul 27, 2019 at 22:44
  • 1
    $\begingroup$ Fine, you got me. I'll try to be more explicit next time ;) $\endgroup$ Commented Jul 27, 2019 at 23:08

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