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Vukcevich was physicist like Richard Feynman, so 'Six Easy Pieces' by F. can go here for interconnectedness. To CVers, Chess and Physics mostly means Neto, http://www.chessvariants.org/other.dir/physics.html, who also coined ''mutator.'' The Feynman lectures 1961-1963 turned out to be more for graduate students than intended C.I.T. undergraduates, as summaries were needed after the two 20th-century revolutions in Physics. Feynman's Preface admits that failing, and one early retrenchment 'SEP' culls just 6 of them from all of 'Lectures on Physics'. A lengthy Chess metaphor makes the cut to 'SEP' at pages 24-26 inclusively, and it was obviously occurring to Feynman that old standard Chess is six easy pieces. Continuing more than this one comment, under copyright full direct quotes from 'SEP'(1963 Perseus): ''What do we mean by 'understanding' something? We can imagine that this complicated array of moving things which constitutes 'the world' is something like a great chess game being played by the gods, and we are the observers of the game. We do not know what the rules of the game are; all we are allowed to do is to watch the playing. Of course, if we watch long enough, we may eventually catch on to a few of the rules. The rules of the game are what we mean by fundamental physics. Even if we knew every rule, however, we might not be able to understand why a particular move is made in the game, merely because it is too complicated and our minds are limited. If you play chess you must know that it is easy to learn all the rules, and yet it is often very hard to select the best move or to understand why a player moves as he does. So it is in nature; only much more so; but we may be able at least to find all the rules. Actually, we do not have all the rules now. (Every once in a while something like castling is going on that we still do not understand.)...''