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This item is a computer program
It belongs to categories: Orthodox chess, 
It was last modified on: 2008-07-31
 By H. G.  Muller. Fairy-Max: an AI for playing user-defined Chess variants. A chess engine configurable for playing a wide variety of chess variants.[All Comments] [Add Comment or Rating]
H. G. Muller wrote on 2013-02-20 UTC
I made a nice addition to the capabilities of Fairy-Max. There were still two unused bits in the field specifying the mode rights of each move direction, and I use them now to specify a delay of the first toggle event. Normally non-hoppers indicate in their primary move rights what they can do (capture, non-capture and continuation in all combinations), and with their secondary move rights which of those have to change after every step. For simple sliders or leapers the latter are not used, as nothing has to change. (They either have continuation, and keep it on every step, so they are sliders with unlimited range, or they haven't, and then there is no second step, and thus also nothing to toggle.

But range-2 sliders would specify continuation in their primary move rights, and toggle it off after one step. (Lame leapers like the Xiangqi Elephant would do the same, but in addition sot specify any capture/non-capure rights with the first step, and toggle those on for the second step, as well as toggling continuation off.).

The new interpretation of the so far unused bits would postpone the first toggle 1, 2 or 3 steps. So applied to the old encoding for a range-2 slider, it would extend the range to 3, 4 or 5 before the continuation is toggled off and the last step is made.