[r-t] Delta-based transposition representation

Alan Burlison alan.burlison at gmail.com
Wed Jun 15 09:37:41 UTC 2016

Ah, I see what you are doing now, each position in the row can be 
occupied by one of 16 bells = 2^4 so you need 4 bits to hold the bell 
number for each place in the row, and the masks therefore need to be 4 
bits as well. Neat :-)

Alan Burlison

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