rnb1kb2/p6p/1ppp1q2/1P2N1pP/6p1/P4P2/2PPPK1n/RNBQ1B2 b q - 0 16
FEN state: rnb1kb2/p6p/1ppp1q2/1P2N1pP/6p1/P4P2/2PPPK1n/RNBQ1B2 b q - 0 16 ; Best move: d6e5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black bishop at f8. Black pawn at a7 and black pawn at h7. Black pawn at b6, black pawn at c6, black pawn at d6 and black queen at f6. White pawn at b5, white knight at e5, black pawn at g5 and white pawn at h5. Black pawn at g4. White pawn at a3 and white pawn at f3. White pawn at c2, white pawn at d2, white pawn at e2, white king at f2 and black knight at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white bishop at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 16. Black to move.