jrunPowChessLÿ{"in":1,"ref":["6bbaf994eb12241aa9614364d134c89d6fbb0a97c16a06bcfb9d3ba0a3eacb7c_o1"],"out":["104824cabb49654ed5fa7827688e075483c3270b2a909bd780e90f6b38e33273"],"del":[],"cre":[],"exec":[{"op":"CALL","data":[{"$jig":0},"concatenateSan",[{"san":"Bf7"}]]}]}
https://whatsonchain.com/tx/13da6fa59fb367dfa027eaa3ff3cf6d94f1501997d2dfd770f06d0b778a3cee7