rn2kbr1/2pp3p/pB3pn1/3bq1p1/2P1p3/PP1PPNP1/R1QN3P/4KB1R b Kq - 5 20
FEN state: rn2kbr1/2pp3p/pB3pn1/3bq1p1/2P1p3/PP1PPNP1/R1QN3P/4KB1R b Kq - 5 20 ; Best move: e4f3
The current state of the chess board is: Black rook at a8, black knight at b8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at c7, black pawn at d7 and black pawn at h7. Black pawn at a6, white bishop at b6, black pawn at f6 and black knight at g6. Black bishop at d5, black queen at e5 and black pawn at g5. White pawn at c4 and black pawn at e4. White pawn at a3, white pawn at b3, white pawn at d3, white pawn at e3, white knight at f3 and white pawn at g3. White rook at a2, white queen at c2, white knight at d2 and white pawn at h2. White king at e1, white bishop at f1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 5. Full move number is 20. Black to move.