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The below puzzle White to mate in two moves. I tried all combinations. I can't figure it out how to solve this? I am starting to think this as a bug in my mobile application which is showing wrong information that it can be solved in just two moves. 

[FEN "2K3Bn/B/3pp1N/1p1P3R/4k/R5q/N1P3Pp/7Q w - - 0 1"]
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    There definitely is a checkmate in two moves, although it's not easy to find.
    – chaosflaws
    Commented Apr 14, 2014 at 15:20
  • @chaosflaws if there is a way.. I will just froze here in shock. :)
    – Mr_Green
    Commented Apr 14, 2014 at 15:23
  • This kind of question can be answered by using an online chessboard editor connected to an engine, for example a link like this (press FORCE COMPUTER TO MOVE) apronus.com/chess/playcomputer/…
    – MichalRyszardWojcik
    Commented May 26, 2016 at 13:08

1 Answer 1

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To be fair, I tried solving this manually.

Qb1 works.

Basic idea - We see that the Black king cannot move. All that is needed is to give it a check. But where to give it a check from? The Black queen guards many key squares like h4, e3, c3, e1. Thus, White should try to find other squares. Qb1 threatens mate with Qb4+.

This is what I calculated - 

1...exd5 2. Bxd5#
1...e5 2. Qb4#
1...b4 2. Qxb4#
1...h1=Q 2. Qb4#
1...Qxa3 2. c3!#
1...Qe1 2. Qxe1#
1...Qe3 2. Rxe3#
1...Qb3 2. cxb3#
1...Nxg6 2. Qb4#

I also confirmed with a computer that Qb1 is correct.

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  • wow.. yeah.. any suggestions for me to become pro(or atleast beginner)? any book?
    – Mr_Green
    Commented Apr 14, 2014 at 15:30
  • @Mr_Green, see my suggestions here - chess.stackexchange.com/questions/5208/…
    – NM Wesley Falcao
    Commented Apr 14, 2014 at 15:36
  • My first suggestion would be to stop looking at puzzles like this immediately. They are designed only for complexity/artistry/presentability. The chance of a position anything like this occurring in a real game is close to nonexistant, you're much better off looking at puzzles that present more likely/real situations.
    – GrizzlyRawrz
    Commented Apr 14, 2014 at 15:37
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    @GrizzyRawrz I used to think the same way, but my mom once bought me a 200 chess problems book (all mates in 2 and complex positions which wouldn't occur in real life). I noticed that after attempting to solve them, my tactical ability was greatly sharpened, even for the "regular" puzzles.
    – NM Wesley Falcao
    Commented Apr 14, 2014 at 15:38
  • You missed 2...Qc3 2. Nxc3#
    – Carlo Wood
    Commented Jan 29 at 17:15

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