[Retros] Re: e.p. problem

[liskov]

1. Francois Perruchaud wrote:
 

> In 2002, I composed this joke :

> Black is mate, but white allows him a posteriori to capture e.p.

> I don't know if we can say that black has only one move.

> He has certainly less than one move ! Maybe 0.5 ;-)

> 

> 3N4/p1Nppp2/1p1B4/kP6/pP6/r1P2P2/b5PP/1B2K2R

> White:Ke1,Nc7,Nd8,Bb1,Bd6,Rh1,Pb4,b5,c3,f3,g2,h2 /

> Black:Ka5,Ba2,Ra3,Pa4,a7,b6,d7,e7,f7

> (12 + 9)

> Helmate in 2 - a posteriori


This problem would probably look less joky with the stipulation
"Helpmate exactly in two moves" or something like this.

2. Joost de Heer wrote: 


> The following comes close:

>

> http://janko.at/Retros/Glossary/WithoutWords.htm


Here is my recent AP-problem, which has the simplest ORTHODOX stipulation
and is somewhat related to both of the above problems:

  Valery Liskovets 
Die Schwalbe, Aug. 2004  [PDB P1066685]
W: Ke1 Qf4 Ra1 Be2 Bg3 Se5 Pa3 Pd2 Pf2 Pf6 Pg5 Pg7 Ph4 Ph5
B: Kg1 Bh1 Pf5 Pg2 Pg4
+-a--b--c--d--e--f--g--h-+
8 .  .  .  .  .  .  .  . 8
7 .  .  .  .  .  .  P  . 7
6 .  .  .  .  .  P  .  . 6
5 .  .  .  .  S -P  P  P 5
4 .  .  .  .  .  Q -P  P 4
3 P  .  .  .  .  .  B  . 3
2 .  .  .  P  B  P -P  . 2
1 R  .  .  .  K  . -K -B 1
+-a--b--c--d--e--f--g--h-+
 #1  AP           14 + 5

White forces Black to capture ep, what is the sole and only conditionally 
legal move: 0...gxh3 ep 1.0-0-0#! 

Valery Liskovets