Biblepay, could you please elaborate ABN? I think many people here do not understand it.

If I have 1 machines (with 12 threads each) and with a wallet with 256k bbp over 1 day coinage, this machine can only mine <=1 block each day?    
If I have 4 machines (with 12 threads each) and with the same wallet with 256k bbp over 1 day coinage, all 4 machines can only mine <=1 block each day?  


Does 1 thread need 256k/day coinage?


The difficulty is low after abn since not many people can make the mining right.