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Jörg Knappen wrote on Mon, Jan 17, 2011 09:38 AM UTC:
To Charles Gilman: In fact, my comment from 2002 reflects my knowledge I had at that time. There was a strange gap with the Flamingo alreay being named, but the (1,5)-leaper was left without a name.

Die Schwalbe is one of the leading problemist's journals (hey, they have journals allowing them to standardise on names!), therefore I consider their usage as well established. The Schwalbe reference gives no date when the name Ibis was assigned to (1,5) leaper, but here you can find a problem from 1999 using the Ibis:

www.softdecc.com/pdb/search.pdb?expression=CREATIONDATE%3E=20101230

(a quick google search with 'ibis chess problem' turned up this page as first hit).

To Christine: My first name is Jörg iwth an O-umlaut as second letter.


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