from Board import Board test_str3 = "r2q1rk1/pp2bppp/2p1pn2/3pP1B1/8/2N1PP1P/PPP1Q1P1/R4RK1" a = Board() a.loadFromFEN(test_str3) a.printBoard(0) print "" a.movePiece("e2", "d1") a.printBoard(0)