[Retros] New HAP Problem
Joost de Heer
joost at sanguis.xs4all.nl
Fri Nov 30 06:31:13 EST 2007
=?iso-8859-15?Q?Bernd_Gr=E4frath?= wrote ..
>
>
> Dear retro friends,
>
> here is another HAP problem. Early this morning, I sent it to Mario Richter
> for computer-checking. Half an hour later, Joost published his 1. b3 problem
> at the Retrograde Analysis Corner...
>
> By now, Mario has told me that my problem is C+, while Joost's is incorrect.
> So I think that my problem is, after all, the first HAP problem with 1.
> b3. But even if it isn't, I think that my problem is still interesting
> because it shows both types of castling in one problem.
Shortly after Mario told me about the cook, I found a 10 ply proofgame with 1. b3 (C+ by Mario):
1. P P 2. H HxH 3. H HxH 4. P HxP+ 5. HxH PxP
Joost
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1. b3 e5 2. Ba3 Bxa3 3. Qc1 Bxc1 4. f4 Bxd2+ 5. Kxd2 exf4
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