1rb1k1nr/ppp2p1p/4pb2/P1qp2n1/1P1N1PPp/2P5/2NPP1B1/R1BQK1R1 b k - 2 16
FEN state: 1rb1k1nr/ppp2p1p/4pb2/P1qp2n1/1P1N1PPp/2P5/2NPP1B1/R1BQK1R1 b k - 2 16 ; Best move: c5d6
The current state of the chess board is: Black rook at b8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at f7 and black pawn at h7. Black pawn at e6 and black bishop at f6. White pawn at a5, black queen at c5, black pawn at d5 and black knight at g5. White pawn at b4, white knight at d4, white pawn at f4, white pawn at g4 and black pawn at h4. White pawn at c3. White knight at c2, white pawn at d2, white pawn at e2 and white bishop at g2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white rook at g1. Black kingside is the only castle move available. Half move number is 2. Full move number is 16. Black to move.