A single integer N = a complete chess game

[Maximilian Hasler]

On Mon, Apr 14, 2008 at 10:06 AM, David W. Wilson wrote:
>  Concerning 176: The largest known number of possible [plys] from a legal
>  position is 218:

 From http://www.sci.fi/~stniekat/pccc/codex.htm#c4 (by the
PERMANENT COMMISSION OF THE FIDE FOR CHESS COMPOSITIONS (PCCC))

Chapter IV - Miscellaneous Conventions
Article 14 - Legality of Positions

(1) A position is legal if it can be reached by a sequence of moves
from the initial array [17]. Otherwise, the position is called illegal
[18].

Maximilian