2rqk1nr/1p1n4/R1p2pp1/2b1p2p/2PpP1P1/NP1P1P1N/3Q2BP/2B1K2R w k - 2 16
FEN state: 2rqk1nr/1p1n4/R1p2pp1/2b1p2p/2PpP1P1/NP1P1P1N/3Q2BP/2B1K2R w k - 2 16 ; Best move: a6a4
The current state of the chess board is: Black rook at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at b7 and black knight at d7. White rook at a6, black pawn at c6, black pawn at f6 and black pawn at g6. Black bishop at c5, black pawn at e5 and black pawn at h5. White pawn at c4, black pawn at d4, white pawn at e4 and white pawn at g4. White knight at a3, white pawn at b3, white pawn at d3, white pawn at f3 and white knight at h3. White queen at d2, white bishop at g2 and white pawn at h2. White bishop at c1, white king at e1 and white rook at h1. Black kingside is the only castle move available. Half move number is 2. Full move number is 16. White to move.