Now that parentheses are introduced in XBetza for indicating repetition of legs, the Harvester can be described as Wafs(az)7W.
Even the Reflecting Bishop seems possible: (oyabyas)11B. In the non-final legs this moves the Bishop to just beyond the edge (o), toggles range (ya) to retrace the latsest step (b) to get back on board, and then continue sideways (s) as a slider again by a second range toggle for the next diagonal leg. Only a single sideway direction should be available at this time, as it would be on an edge square. This procedure then can be repeated as many times as it is allowed to reflect.
Now that parentheses are introduced in XBetza for indicating repetition of legs, the Harvester can be described as Wafs(az)7W.
Even the Reflecting Bishop seems possible: (oyabyas)11B. In the non-final legs this moves the Bishop to just beyond the edge (o), toggles range (ya) to retrace the latsest step (b) to get back on board, and then continue sideways (s) as a slider again by a second range toggle for the next diagonal leg. Only a single sideway direction should be available at this time, as it would be on an edge square. This procedure then can be repeated as many times as it is allowed to reflect.