[Retros] Imperfect 50-moves rule

[liskov]

Dear retro-friends,

Let me exhibit my recent problem, provocative by intention, which is 
based on the treatment of the 50-moves rule by the current Codex for 
Chess Composition.

         Valery Liskovets
 "Shakhm. Kompoz." No.54, 2003, #331
W: Kg7 Rg4 Pa7 Pb6 Pd2 Pd4 Pd6 Pf6 Pg5 Ph7
B: Ke8 Ra8 Rf8 Bh5 Sh8 Pb7 Pd7 Pf7 Pg6
+---a---b---c---d---e---f---g---h---+

|                                   |

8  -R   .   .   .  -K  -R   .  -S   8

|                                   |

7   P  -P   .  -P   .  -P   K   P   7

|                                   |

6   .   P   .   P   .   P  -P   .   6

|                                   |

5   .   .   .   .   .   .   P  -B   5

|                                   |

4   .   .   .   P   .   .   R   .   4

|                                   |

3   .   .   .   .   .   .   .   .   3

|                                   |

2   .   .   .   P   .   .   .   .   2

|                                   |

1   .   .   .   .   .   .   .   .   1

|                                   |

+---a---b---c---d---e---f---g---h---+
 #101 AP (pRA)  Current Codex   10+9

AP after Keym (admitting AP-justified partial solutions along with 
formal, maybe short, ones).

By the Piran Codex, the solution would be fifty moves shorter.

Valery Liskovets