[Retros] Add pieces update

Alain BROBECKER abrobecker at yahoo.com
Fri Mar 11 11:35:47 EST 2011

Dear retro fans,

Another small update of the "add pieces" record.

Problems N1CRb and N1CNb will probably disappear

in a future version.
Find it here:

Note that Thierry Le Gleuher thinks most of

the problems won't have a deep reasoning,

and he provided N14A as an example, which

made a point. But i still hope time (and you)

will prove him wrong. ;)

For example N1CQ, a "add N=1 piece" problem in

which the added piece will be a Q, type C,

doesn't seem trivial at all.

Best regards, Alain

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