[Retros] 1. Introduction to Retrograde Analysis

[Alain BROBECKER]

Dear Nikolai,

Thank you very much for this introduction to RA,
it's very interesting and your work to promote
RA must be praised! :)

On page 27, i recognised problem 43 as a version
of a problem made by Eric Angelini. Also diagram
43 and 44 could have stipulation "last 2 single moves"
i think. (?)
Also a typo some paragraphs later:
"[...] will focus on *some* a little more complex [...]".

Best regards,
Alain


Alain Brobecker (abrobecker at yahoo.com) |_  _  _ |_
http://abrobecker.free.fr/             |_)(_|(_|| ) of  Arm's Tech