[Retros] fractional moves: to be or not to be

[Rol, Guus]

Hi Roberto,

Interesting to get Geurt's comment on this topic; the world of
composition meets the world of play.

There is another way to interpret 7.4a "the position immediately before
the irregularity shall be reinstated". If one conceives that the
irregularly only started AFTER playing Ke1-g1, more precisely at the
time the clock was pressed, then the referee might decide to restore the
conditions after Ke1-g1 and demand that the player completes the
castling move.

Best, Guus Rol.



-----Oorspronkelijk bericht-----
Van: retros-bounces at janko.at [mailto:retros-bounces at janko.at] Namens
raosorio at fibertel.com.ar
Verzonden: woensdag 20 februari 2008 21:10
Aan: retros at janko.at
CC: geurtgijssen at chesscafe.com
Onderwerp: [Retros] fractional moves: to be or not to be


Hi retrofriends and Geurt,

I'm sending this with copy to the Retro mailing List and to the chess
caffe.

On january 30th I made the following question,

"If the wK is standing on e1 and a wR on h1, castling is legal and
posible but the player conducing the white side moves the King to g1 and
that's it, he stops there. This move is illegal, but it's also a half
legal move. Is white forced to move the king freely or he's forced to
castle? "

Then I found article 4.6,

"4.6 When, as a legal move or part of a legal move, a piece has been
released on a square, it cannot then be moved to another square. 
b.	in the case of castling, .... When the player has released the
king from his hand, the move is not yet made, but the player no longer
has the right to make any move other than castling on that side, if this
is legal; "

I concluded that time that this answered all the questions, forcing in
any case to castle. But I got another surprisse in my project related to
ilegal situations. Art. 4.6 applies in the half move situation (the
player has not pressed the clock) but in the case the player pressed the
clock, then he made an ilegal move and the situation is governed by the
article 7.4.a.,

"7.4.a. If during a game it is found that an illegal move.... has been
completed, the position immediately before the irregularity shall be
reinstated. .... Article 4.3 applies to the move replacing the illegal
move. "

Then, in this case the move after the illegality is restricted by 4.3
instead by 4.6?! The 4.3 is the "touched piece" article so the player is
just forced to move the king freely, not to make castling.

Let's imagine the following situation,

I'm in the turn to move and I have doubts: is it better to play O-O or
Kd1? Then, being an expert on the fine details of the Laws, I move
Ke1-g1 to have a look of this alternative a half move forward. My
opponent claims and the arbiter comes and, before he asked me to
complete the castling, I press the clock (I found that Kd1 was better).
Consequences? A couple of minutes. Piece of cake!

Am I missing something here?

Roberto Osorio
ARGENTINA


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