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Grand Apothecary Chess-Classic. Very large Board variant obtained trough tinkering with known games.[All Comments] [Add Comment or Rating]
H. G. Muller wrote on Mon, Oct 25, 2021 08:29 PM UTC in reply to Jean-Louis Cazaux from 07:11 PM:

@Aurelian: I haven't had time to visit CVP since it came back on line. I will have a look at the shuffling problem you mentioned.

@Jean-Louis: there is an explanation of y and a here. Indeed a means 'again', and y can be used only in combinaton with it, where ya then means 'again with range toggle', i.e. when the move started as a leaper (as is the case with F) the next leg will move as a rider of the same stride. fs means 'forward sideways', but the convention is that this should be interpreted in an orientation where the previous leg defines the forward direction (think of the controversy for the move of the Grant Acedrex Unicorn!). So fs deflects the path by 45 degrees, pure s would deflect by 90 degrees, bs would deflect by 135 degrees. So the ya would turn the F into B (range toggle), but a 45-degree rotated B is an R. So yafsF is an F step followed by an outward R. Without the y (i.e. afsF) there would be no range toggle, and the second leg would be an outward W step. Which would give you a Moa.