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Grand Chess. Christian Freeling's popular large chess variant on 10 by 10 board. Rules and links. (10x10, Cells: 100) (Recognized!)[All Comments] [Add Comment or Rating]

Anonymous wrote on Thu, Apr 1, 2004 05:35 PM UTC:

Grand Chess design analysis:
# squares: 100
# piece types: 8
Piece-type density: 8%
Est. piece values: P1, K2, N3, B3, R5, C8, M9, Q10
Initial piece density: 40%
Long diagonal: a1-j10
Power density: 1.22
Exchange gradient: 0.450; (1-G) = 0.550
Ave. game length:  M =  3.5*100*0.08/1.22*0.55 = 42 Moves
Features:  All the B-N-R two-fold compounds appear
Comments: Great exchange potential and relatively few types of pieces
keep
a decimal variant under 45-move average.