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Orphan. Moves like a piece that attacks it.[All Comments] [Add Comment or Rating]
Martin wrote on Tue, Oct 15, 2002 07:11 PM UTC:Good ★★★★
Very interesting piece, but unfortunately, the second example diagram and
the accompanying text is flawed. The black King *is* able to move to g4,
because there is no Orphan on f4. Rather, the text should say: 'note that
[the black King] can not move to *g6*, because it would then attack the
Orphan on *f7*, which would check the black King.' Additionally, the white
pawn should be moved one step forward, to f3, to prevent the King from
moving to g4.

If that hadn't been flawed, I'd rate the page 'Excellent'. :)

📝Ben Good wrote on Wed, Oct 16, 2002 03:57 PM UTC:
actually, the problem is that there should be an orphan on f4.  the
original diagram had it, but i redid this page this summer, and i
obviously left it off by accident.  i'll send a new diagram to aronson
sometime today.

Peter Aronson wrote on Thu, Oct 17, 2002 04:49 AM UTC:
Diagram fixed!

Hugo wrote on Tue, Mar 16, 2004 09:32 PM UTC:
You cannot take an orphan except when checkmating him.I suggest to make the King an Orphan.

Charles Gilman wrote on Sat, Aug 22, 2009 07:02 AM UTC:
Hugo is wrong. It is true that any piece moving to threaten an Orphan is automatically threatened by it, but what if the piece is also protected by an ally? Then if the Orphan captures it the Orphan itself can be captured as it has no time to capture the next piece. For example, there is a Black Orphan on a4 and a White Rook moves to d4, where a Bishop on b2 protects it. If the Orphan captures the Rook, the Bishop can capture the Orphan.
	Is this a record for the time taken to reply to a comment? My excuse is that I have only recently become interested in pieces which imitate.

George Duke wrote on Sat, Aug 22, 2009 03:33 PM UTC:
Gilman is answering Hugo's point of 5 1/2 years ago. These time scales are not improbable in Chess. Gridlock is said to have originated 25,000 years ago. Tai Shogi games with its over 100 piece-types took place by courier among Buddhist monks sometimes up to 50 years for one single score. Tradition.

Samson Marriner wrote on Mon, Jul 14, 2014 08:25 PM UTC:
In the shown Helpmate problem something unusual occurs (impossible in FIDE): White Pawn may promote to a Rook or a Knight, but not to a Queen or Bishop: doing so would be placing yourself in check. (if White to play)

(zzo38) A. Black wrote on Wed, Jul 16, 2014 03:29 AM UTC:
How will you be in check if you promote into bishop? I thought it only applies if you are promoted into a queen.

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