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Shatranj2880 preserves Alfil bindings. Shatranj Shuffle opposite sides'
8 r__n__a__k__f__a__n__r   starting arrays are perfect mirrors. That goes
7  __ __ __ __ __ __ __    for the four Alfils (elephants) as well. Each
6  __ __ __x__ __ __ __x   team has one White- one Black-cell Alfil. In
5  __ __ __ __ __ __ __    the perfection of mediaeval game, there can
4  __x__ __ __ __x__ __    NEVER be Alfil x Alfil.In two words,IM-
3  __ __ __ __ __ __ __    POSSIBLE, for their respective bindings never
2  __ __ __x__ __ __ __x   impinge. In board to left, we use the standard
1 r__n__a__k__f__a__n__r   RNAKFANR for convenience of familiarity. 
  a  b  c  d  e  f  g  h   Imagine also the mediaeval game was checkered, which was not always the case. The White's Alfils are c1 and f1, Black's c8 and f8. Now c1 and f8 are on black SQUARES. Follow f8's binding-path as f8-d6-b4-d2-f4-h6 and two what we might call ''offshoots'' h2 and b8. Each of the four Alfils reach their particular 8 squares for 32 all together, half the board. Notice f8-Alfil has route that just nips White's c1 (at d2) but he does not hit him. Both f8 and c1 stay on Black squares but never correspond by reaching exact same squares. Their bindings are all of them independent of one another. There can neither be AxA nor even Alfil defending Alfil. NOT IN ALL RECORDED HISTORY. 
Shatranj2880 adds 2879 more initial arrays with the SAME CHARACTERISTIC free-ranging Alfils -- proven valid piece interaction for a thousand years from 600 to 1500 -- and good enough for any right-thinking person for the longer-term foreseeable future.
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