jrunPowChessM {"in":1,"ref":["6bbaf994eb12241aa9614364d134c89d6fbb0a97c16a06bcfb9d3ba0a3eacb7c_o1"],"out":["871636ecb34cf9dfbfcd921a55486a34d69d9b2e153b7c08387d3ff5aa813707"],"del":[],"cre":[],"exec":[{"op":"CALL","data":[{"$jig":0},"concatenateSan",[{"san":"Nxd4"}]]}]}
https://whatsonchain.com/tx/9b6e30a8c7bb38a133f2bb6cd819fea1a189a051e03a5df1fbf59ca255ec400c