Here's a special and interesting chess problem that I came across the other day.

As usual, no using a computer and no Googling or anything like that for the solution. You must use your own brain power!

White checkmaes Black in 7 moves.

Милошески, Бошко Mihajloski, Zlatko, Novi temi 1975 Comm.

enter image description here

  • $\begingroup$ I assume you mean forced mate in 7? $\endgroup$ – Thomas Markov Jul 1 '19 at 13:25
  • $\begingroup$ All of black's moves are determined by the game-state rather than black. $\endgroup$ – Thomas Markov Jul 1 '19 at 13:27
  1. The position is legal

Black played h5xg4 (or h4xg3, or h3xg2) after White played g2-g4-g5, and White took the bQ with dxe

  1. The key move is



2.Bb6# or 2.Ne4#

Black can only defend with

1...b5 (giving an escape square on c6)

But then :

2.axb6ep! d5 (controlling e4)
3.exd6ep! e5+ (checking)
4.fxe6ep! f5 (controlling e4)
5.gxf6ep! g5+ (checking)
6.hxg6ep! ... White always renews the threat of Ne4#

Now after

any sixth move by Black, White will mate with 7.Ne4#.

It is special because

5 consecutive en passant captures is quite possibly the record for a direct mate.

  • 1
    $\begingroup$ I was considering the knight move already on the 2nd move and couldn't find a convincing answer for white. I fed the position to an engine and it thinks that black is actually winning. $\endgroup$ – Sleafar Jul 1 '19 at 17:17
  • 2
    $\begingroup$ @RewanDemontay Why is Nxf6 not legal? $\endgroup$ – Sleafar Jul 1 '19 at 17:20
  • 3
    $\begingroup$ @RewanDemontay Maybe you should look at the position you posted. The knight can definitely go to f6 (or even better to g5 in 2nd move). $\endgroup$ – Sleafar Jul 1 '19 at 17:30
  • 2
    $\begingroup$ Black last move on 6th won't matter that much after the update in OP. $\endgroup$ – Shinjo Jul 2 '19 at 4:41
  • 2
    $\begingroup$ I think you really should proofread your last comment... $\endgroup$ – Evargalo Jul 2 '19 at 20:00

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.