r3kb1r/p1pq3p/bpnpppp1/1PP5/P7/B4N1P/4P1P1/RNQ1KB1R w KQk - 2 16
FEN state: r3kb1r/p1pq3p/bpnpppp1/1PP5/P7/B4N1P/4P1P1/RNQ1KB1R w KQk - 2 16 ; Best move: b5a6
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black queen at d7 and black pawn at h7. Black bishop at a6, black pawn at b6, black knight at c6, black pawn at d6, black pawn at e6, black pawn at f6 and black pawn at g6. White pawn at b5 and white pawn at c5. White pawn at a4. White bishop at a3, white knight at f3 and white pawn at h3. White pawn at e2 and white pawn at g2. White rook at a1, white knight at b1, white queen at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside and black kingside castles are available. Half move number is 2. Full move number is 16. White to move.