09 Jul 06
Originally posted by BigDoggProblemFor a white queen, the white knight first takes the pawn on e6 (sorry I haven't learned proper chess notation yet). If black does not move his rook, then on white's next turn, rook to d4 and mate. If black moves his rook to take the white queen, then white rook to e5 and mate. If the black knight on e5 takes the white rook on c4, then white queen to c4 will also mate on the next move. Ok, I think I've covered all the possibilities. Now for the black queen....
V. Barthe
Les Cahiers de l'Echiquer Francais 1936
[fen]1B6/2N1P3/4pQ2/R3nrp1/2Rnk3/1P3p2/2P2P2/6K1[/fen]
Mate in 2
a) diagram
b) bQ on f6
09 Jul 06
1 edit
Originally posted by Ramiri15Your solution to a) is correct. (1.Nxe6!)
For a black queen, white rook on c4 takes black knight on d4, forcing the black king to take the rook. Then white rook to d5 and mate. I guess this would work for the white queen too, so this is probably the answer you were looking for.
However, in b), 1.Rxd4+ Kxd4 2.Rd5 is not mate, because Black has 2...Kc3.
09 Jul 06
Originally posted by BigDoggProblemOkay, okay; I've got it. White knight to b5 forces a mate on the next turn. If the black knight on e5 takes the white rook on c4 (or makes any other move), then white knight to c3 mates. If black moves his rook from f5 to f4, then white knight to d6 mates, and if black does anything else, then white rook to d4 also mates.
Your solution to a) is correct. (1.Nxe6!)
However, in b), 1.Rxd4+ Kxd4 2.Rd5 is not mate, because Black has 2...Kc3.
09 Jul 06
Originally posted by Ramiri15Correct.
Okay, okay; I've got it. White knight to b5 forces a mate on the next turn. If the black knight on e5 takes the white rook on c4 (or makes any other move), then white knight to c3 mates. If black moves his rook from f5 to f4, then white knight to d6 mates, and if black does anything else, then white rook to d4 also mates.