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Grande Acedrex 3D - Part 3

'The black pawns are shown as 'o' rather than 'p' simply because it's hard to see the difference between 'p' and 'P' at a glance.' - Jim Aikin, in Five Up. This 5x5x5 chess variant has queens (rook + bishop), wizards (unicorn + bishop), and guards (26 moves).

I have decided to change the definition of the king, allowing it to move to all 26 adjacent cells, and use a new setup with each player commanding 16 pawns and 16 other pieces. Every pawn is defended at least twice. Shogi was the original inspiration for my R, B, Q promotion rules. As before, the Special Promotion Zone is (1c3), (1d3), (1c4), (1d4) for Black pieces, which have the option of promoting at the end of any move in which the piece enters or exits one of these 4 cells. Another rule change: a Black pawn must be replaced by a queen of the same color upon entering one of the 36 level 1 cells. It never promotes directly to a 'promoted queen'. If the new queen appears in the Special Promotion Zone, then it has the option of making a later move (as an ordinary queen) and promoting at the end of that move.

Part 1 mentions a K+N+U versus K checkmate, which is still valid after these rule changes (one king now attacks the unicorn and the other king defends it). The question of the longest forced mate (K+N+U versus K) remains - it should be possible to hack some existing Zillions Rules File and change the unicorn's definition. After ninety days of increasing problems, I finally formatted my hard drive. Working on getting my email program up and running - it will be some time before I get around to re-installing Zillions.

  [level 1]    [level 2] - - - [level 5]    [level 6]
 
 . . . . . .  . . . . . .  6  . . . . . .  . . . . . .
 . R U U R .  . P P P P .  5  . o o o o .  . r k q r .
 . B N N B .  . P P P P .  4  . o o o o .  . b n n b .
 . B N N B .  . P P P P .  3  . o o o o .  . b n n b .
 . R Q K R .  . P P P P .  2  . o o o o .  . r u u r .
 . . . . . .  . . . . . .  1  . . . . . .  . . . . . .
 
 a b c d e f  a b c d e f     a b c d e f  a b c d e f
 
   __      All original content         __  
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 [====]     by David Paulowich        [====]