jrunPowChessM{"in":1,"ref":["6bbaf994eb12241aa9614364d134c89d6fbb0a97c16a06bcfb9d3ba0a3eacb7c_o1"],"out":["7744f9719ebc2a4a51b59ae7b0e0a6e4f7626bf0bcb5eac525533479cd82bd81"],"del":[],"cre":[],"exec":[{"op":"CALL","data":[{"$jig":0},"concatenateSan",[{"san":"2.Bf4"}]]}]}
https://whatsonchain.com/tx/fb235c910a22a54175c9a16750ff581c5d3cb2d23e4884e8d63993fe94bd7e06