[Retros] Precisions about Checkless Chess tourney

[Alain BROBECKER]

Some precisions about the Checkless Tourney:

* Andrew Buchanan points out there's a discussion about cross checks
  here: http://www.chessvariants.org/usualeq.dir/checklss.html
  
  For this competition i will take a programmer's point of view:
  "A check is mate, and hence legal, if the only move parrying
  the check is a non mating check" (this is recursive and that's
  how Checkless chess is implemented in WinChloé). 
  
  K5kr/8/5Q2/8/8/8/8/8
  White to play mates with Qf6-g7# since Kg8xg7 is check without mate.

* Henrik Juel points out a small mistake (check in forward play)
  in my redaction of Wolfgang Dittman's problem solution:
  "(Les blancs au trait gagneraient par n+1.Cf7+ Rh5 n+2.Cxg3#)"
  Change it to: "n+1.Cxg3 ~ n+2.Cf7#"
  
Happy composing
Alain

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