{initial} rnbqk2r/pppp1ppp/5n2/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQ1RK1 b kq - 0 4
[start] rnbq1rk1/pppp1ppp/5n2/2b1p3/2B1P3/5N2/PPPP1PPP/RNBQ1RK1 w - - 1 5