[Retros] rights & ocassions /answering Andrew

[Guus Rol]

---------- Forwarded message ----------
From: <liskov at im.bas-net.by>
Date: Thu, May 8, 2014 at 3:49 PM
Subject: To FORWARD: Re: [Retros] rights & occasions
To: Guus Rol grol33 at gmail.com

Hi retrofriends, Guus,

Generally I share Guus' attitude to the future impact...
To illustrate, returning to Roberto's starting challenge,
let's consider a more sophisticated, and more doubtful, example:

www.janko.at/Retros/d.php?ff=4k3/5p2/2p1pP2/2PpP3/2pPp3/2PpP3/3P3p/2B1K2R
(10+9)

W to move, the same question for wK (how many sequential two move
switchbacks
could be legally performed by him) under the following precondition:
the last pawn's move was made 42 moves ago (or, instead:
last 41 moves were made by pieces, not pawns).

b) wBc1->a1. Should the Rules ensure distinct answers?

Valery Liskovets
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