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George Duke wrote on 2018-03-08 UTCExcellent ★★★★★

There are reams more nightriders mostly unutilized than the ordinary hack one developed by Dawson a century ago. So far they remain in problems and thought experiments.  Classic essay here proposes Straight Wide Crooked, Diagonal Narrow Crooked, Diagonal Wide Crooked, and Straight Narrow Crooked.  Best of all, the essential nightrider Quintessence.  Each one makes better more interesting play than Betzan-tagged 'NN'.  Play of that ordinary Dawson nightrider is inferior because it just duplicates successive Knight moves same direction.  It is no more interesting than "limited" pieces like an up-to-three-step Bishop or Chess Different Armies Short Rook.

Quintessence itself gets play in odd-shaped 84-square Quintessential Chess, adding also  Leeloo compound R + Quintessence.  

Quinquereme takes it up to 12x12 with the same Quintessence.  Each of the various nightriders in combinations, one and two of each together with some of the other 6 or 8 piece-types in the set, on different board sizes can create thousands, well millions easily, of individualized CVs.  Worth exploring in the abstract are the standard boards 9x9, 9x10, 10x10, 10x12, 12x12, 10x16.  All the large sizes should have a variant nightrider species for improved implementations. Even rudimentary Dawson NN of such wide appearance is superior to also-overused Carreran BN and RN, four hundred years beat to death.


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