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        riddles >> easy >> How Could This Position Come About? (Chess)
        
(Message started by: THUDandBLUNDER on Jul 12^th, 2005, 11:43am)

Title: How Could This Position Come About? (Chess)
Post by THUDandBLUNDER on Jul 12^th, 2005, 11:43am

???

Title: Re: How Could This Position Come About? (Chess)
Post by Sjoerd Job Postmus on Jul 12^th, 2005, 11:49am

Seeing the near impossible position of the white pawn... I'm guessing that pawn didn't attack a pawn, but something like a rook. The rook seems the most logical solution.

The rest is just jumping with horses, and having white attack a rook.

-I guess-

Title: Re: How Could This Position Come About? (Chess)
Post by markr on Jul 12^th, 2005, 11:27pm

I agree.
[hide]- The black pawn advanced enough to free the black rook.
- The black rook came out and was captured by the white pawn.
- The white rook got out of the way of the black pawn.
- The black pawn advanced and was promoted to a rook.
- The promoted rook went back to where the rook came from.
- The white rook returned to its original square.
- Knights were used when necessary to kill time.[/hide]

Title: Re: How Could This Position Come About? (Chess)
Post by THUDandBLUNDER on Jul 13^th, 2005, 5:19am

That is correct. A minimum of 21 half-moves are required. One possible game is:

1.Na3 h5
2.Nb1 h4
3.Na3 h3
4.Nb1 Rh6
5.Na3 Rg6
6.Nf3 Rg3
7.hxg3 h2
8.Rg1 h1=R
9.Nb1 Rh2
10.Rh1 Rh8
11.Ng1