rnb1k1n1/2q4r/ppp2p2/1Bbpp1pp/1P2P1P1/N1P1Q2P/P2P1P2/R1B1K1NR w q - 2 16
FEN state: rnb1k1n1/2q4r/ppp2p2/1Bbpp1pp/1P2P1P1/N1P1Q2P/P2P1P2/R1B1K1NR w q - 2 16 ; Best move: b4c5
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 knight at g8. Black queen at c7 and black rook at h7. Black pawn at a6, black pawn at b6, black pawn at c6 and black pawn at f6. White bishop at b5, black bishop at c5, black pawn at d5, black pawn at e5, black pawn at g5 and black pawn at h5. White pawn at b4, white pawn at e4 and white pawn at g4. White knight at a3, white pawn at c3, white queen at e3 and white pawn at h3. White pawn at a2, white pawn at d2 and white pawn at f2. White rook at a1, white bishop at c1, white king at e1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 2. Full move number is 16. White to move.