H. G. Muller wrote on Thu, Sep 15, 2016 08:01 PM UTC:
This is not the diagram. Fairy-Max never has promotion choice. It can only promote to piece #7, and it thinks the opponent can only promote to piece #7 too. It will accept any promotion to a non-royal piece with value not ending in a '3' as input, however.
Best is probably to not exclude any pieces (i.e. make none of the values end in '3'), and leave it to the honesty of the user not tho choose A, C or Q on 8th and 9th rank.
This is not the diagram. Fairy-Max never has promotion choice. It can only promote to piece #7, and it thinks the opponent can only promote to piece #7 too. It will accept any promotion to a non-royal piece with value not ending in a '3' as input, however.
Best is probably to not exclude any pieces (i.e. make none of the values end in '3'), and leave it to the honesty of the user not tho choose A, C or Q on 8th and 9th rank.