r3k2r/2pqbpp1/p2p1n1p/1p5P/P1P2p2/4R3/nP1PPKb1/RNB1NB2 w kq - 4 16
FEN state: r3k2r/2pqbpp1/p2p1n1p/1p5P/P1P2p2/4R3/nP1PPKb1/RNB1NB2 w kq - 4 16 ; Best move: e3e7
The current state of the chess board is: Black rook at a8, black king at e8 and black rook at h8. Black pawn at c7, black queen at d7, black bishop at e7, black pawn at f7 and black pawn at g7. Black pawn at a6, black pawn at d6, black knight at f6 and black pawn at h6. Black pawn at b5 and white pawn at h5. White pawn at a4, white pawn at c4 and black pawn at f4. White rook at e3. Black knight at a2, white pawn at b2, white pawn at d2, white pawn at e2, white king at f2 and black bishop at g2. White rook at a1, white knight at b1, white bishop at c1, white knight at e1 and white bishop at f1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 16. White to move.