26 Jan 08
1 edit
Originally posted by ares3This one till isn't possible, ares3.
Not a single king- a king and pawn it might be possible.
i.e. [fen]5K1k/5N1p/8/8/8/8/8/8[/fen]
We see that Black hasn't moved his h-pawn, so the only piece he could have moved before being mated is his king. If we try to say that White just moved Nf7#, then Black's previous move must have been either ...Kg8-h8, or Kg7-h8, but neither of these are possible because the white king already covers these squares. We can't even say that it is a stalemate and that Black first moved his king into the corner and only then did White move his king to f8 because that means the white knight is already on f7, which means that ...Kh8 is illegal. But change the white pieces to black, and the black pieces to white, and then we could find a solution; White's king would already be on h8 as he moved his pawn from h6 to h7, and then Black would play Nf7# for the win.
26 Jan 08
Originally posted by Doctor RatThe last moves could perhaps be 1. Qa7-f7 Qh5xf7+ 2. Ne5xf7#
... If we try to say that White just moved Nf7#, then Black's previous move must have been either ...Kg8-h8, or Kg7-h8, but neither of these are possible because the white king already covers these squares. ...
26 Jan 08
Originally posted by FabianFnasWell, the original post was about K vs K+N, then it was brought up K+P vs K+N, so I'd have to say that having queens on the board isn't allowed in this particular case. I was just trying to consider the strict endgame of K+P vs K+N, but you are right that the final position is possible if other pieces are allowed.
The last moves could perhaps be 1. Qa7-f7 Qh5xf7+ 2. Ne5xf7#
27 Jan 08
sorry about that, i thought i could not win, my oppo could not as he was the one with the sole king, just thought if it was confirmed that i could not force a win, i could offer draw and save us both moving for 50 moves. It never helped me win or draw, just let me know something that most other people probably knew.
28 Jan 08
1 edit
Originally posted by Pigface1I think the question as it stood was a theoretical one asking if it was possible and neither gave nor actually asked for assistance in a current game. As the game was a dead draw and no amount of advice could affect it them he could not possibly receive any beneficial assistance.
Asking advice on a game in progress is against the rules, you should not have made this thread !!!!"
What however if someone askes "Can I win with K & R vs K?", I still think such a question is theoretical and its OK to say yes as he still needs to find how to do it.
... but "How do you win this [fen posted] K & R vs K ending?" is a different matter entirely.
