r2qkb1r/pb5p/1ppp2pn/4Pp2/Pn6/4PP1P/1BP1K1P1/RNQ2BNR b kq - 1 13
FEN state: r2qkb1r/pb5p/1ppp2pn/4Pp2/Pn6/4PP1P/1BP1K1P1/RNQ2BNR b kq - 1 13 ; Best move: f5f4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7 and black pawn at h7. Black pawn at b6, black pawn at c6, black pawn at d6, black pawn at g6 and black knight at h6. White pawn at e5 and black pawn at f5. White pawn at a4 and black knight at b4. White pawn at e3, white pawn at f3 and white pawn at h3. White bishop at b2, white pawn at c2, white king at e2 and white pawn at g2. White rook at a1, white knight at b1, white queen at c1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 13. Black to move.