1nb1kb1r/rp2pp2/B1p3pp/2n1B1q1/QP1Pp3/2P2N2/P4PPP/RN3K1R b k - 5 16
FEN state: 1nb1kb1r/rp2pp2/B1p3pp/2n1B1q1/QP1Pp3/2P2N2/P4PPP/RN3K1R b k - 5 16 ; Best move: e4f3
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at e7 and black pawn at f7. White bishop at a6, black pawn at c6, black pawn at g6 and black pawn at h6. Black knight at c5, white bishop at e5 and black queen at g5. White queen at a4, white pawn at b4, white pawn at d4 and black pawn at e4. White pawn at c3 and white knight at f3. White pawn at a2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 5. Full move number is 16. Black to move.