jrunPowChessM{"in":1,"ref":["6bbaf994eb12241aa9614364d134c89d6fbb0a97c16a06bcfb9d3ba0a3eacb7c_o1"],"out":["91d0c6c86e1f15e6e17f719e8d1f204e4f50cfa592783686e3b1079035746940"],"del":[],"cre":[],"exec":[{"op":"CALL","data":[{"$jig":0},"concatenateSan",[{"san":"7.Bf7+"}]]}]}
https://whatsonchain.com/tx/1fd6294dda6fa3be7d6bff722cae6e8ec4e8df0be4f0a4474a3361c4e8a88d21