[Retros] FEN fun

[Joost de Heer]

On Tue, July 30, 2013 10:47, Eric Angelini wrote:

>

> Hello Retro-fans,

> here is a 5-minute puzzle for the August break.

>

> It is possible to reach, after Black's third move,

> many positions having a FEN format where all numbers are prime.

> Find a game where the last move was _not_ a pawn move.

> (The solution is far from being unique -- but the "trick" yes,

> I hope.)

>

> http://en.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation


Hello Eric,

I can't really see a trick, so either I'm missing something or there is a
different solution which does use a trick:

1. h4 h5 2. Rh2 Rh7 3. Sh3 Sh6
rsbqkb2/pppppppr/7s/7p/7P/7S/PPPPPPPR/RSBQKB2

Joost