r3kbnr/n2bpp1p/1p1q2p1/p1pp3P/PP2PR1N/8/R1PP1PP1/1NBQKB2 b kq - 0 13
FEN state: r3kbnr/n2bpp1p/1p1q2p1/p1pp3P/PP2PR1N/8/R1PP1PP1/1NBQKB2 b kq - 0 13 ; Best move: d6f4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black knight at a7, black bishop at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at b6, black queen at d6 and black pawn at g6. Black pawn at a5, black pawn at c5, black pawn at d5 and white pawn at h5. White pawn at a4, white pawn at b4, white pawn at e4, white rook at f4 and white knight at h4. White rook at a2, white pawn at c2, white pawn at d2, white pawn at f2 and white pawn at g2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 13. Black to move.