1nbq1bnr/1p2k3/3p2pp/2p1Pp2/1p1N1PPP/r1P4B/P3PR2/RNBQK3 b Q - 3 16
FEN state: 1nbq1bnr/1p2k3/3p2pp/2p1Pp2/1p1N1PPP/r1P4B/P3PR2/RNBQK3 b Q - 3 16 ; Best move: a3a6
The current state of the chess board is: Black knight at b8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black king at e7. Black pawn at d6, black pawn at g6 and black pawn at h6. Black pawn at c5, white pawn at e5 and black pawn at f5. Black pawn at b4, white knight at d4, white pawn at f4, white pawn at g4 and white pawn at h4. Black rook at a3, white pawn at c3 and white bishop at h3. White pawn at a2, white pawn at e2 and white rook at f2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1 and white king at e1. White queenside is the only castle move available. Half move number is 3. Full move number is 16. Black to move.