Nothingness: it looks very powerfull, because is movable, but it inspires me to implement radar. It would have this actions actions: 1. move or just stand, in this case it cant see like other normal pieces. 2. eject aerial (cost one turn - in notation it is marked). With ejected aerial are two ather actions available - scan - to see, say,two pieces in all directions (cost one turn, noticed in notation) or plug-in aerial (cost one turn, noticed in notation). With ejected aerial radar cant move. Radar has not passive watching like spy has - it cant see enemy when dont scanning. Radar is very vulnerable and can be destroyed by all other pieces. "Moving" radar can destroy sappers, spies, radar and HQ.