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This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2001-06-21
 By Jim  Aikin. Double Diamond. Irregular board with diagonal orientation. (9x9, Cells: 73) [All Comments] [Add Comment or Rating]
George Duke wrote on 2008-08-15 UTCGood ★★★★
Here's another perfectly-good '9x9', technically, to add now we did not throw into our major list on 9x9. Technically, because of 73 squares to accomodate better the Berolina-related Pawns. See first comment for 9x9 Missoum's Rotating Chess where this DD Pawn actually eventuates earlier. Aiken's best other one is Eight-Stone, 8x9 and 72 squares. These Pawns may beat Berolina for half of all possible arrays, depending how we think about it. Brainking has similar game and Pawns under different name Legan from 1913, likely point of origin.

George Duke wrote on 2005-03-05 UTCGood ★★★★
'DEF,LargeCV': Suspiciously Berolina-like, this same Pawn actually originates not here but in 1998 Missoum's 9x9 Rotating Chess. However, that one has Camels and other errors, and Double Diamond is better implementation. Unlike Berolina, these Pawns have additional lateral-orthogonal capture direction and one fewer(one) 'traveling' direction. Simple ideas with strategic implications are the best, but this is not so original apparently as the great Eight-Stone Chess, because of that other unacknowledged game. Removing the remote portions of the board makes sense in related principle, a minimalist approach whereever possible.

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