1rb1k1nr/3nq1bp/3p4/pp2pp1R/P1p1PN1P/5P1N/1PPP2P1/1RBQKB2 b k - 1 16
FEN state: 1rb1k1nr/3nq1bp/3p4/pp2pp1R/P1p1PN1P/5P1N/1PPP2P1/1RBQKB2 b k - 1 16 ; Best move: e5f4
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 knight at d7, black queen at e7, black bishop at g7 and black pawn at h7. Black pawn at d6. Black pawn at a5, black pawn at b5, black pawn at e5, black pawn at f5 and white rook at h5. White pawn at a4, black pawn at c4, white pawn at e4, white knight at f4 and white pawn at h4. White pawn at f3 and white knight at h3. White pawn at b2, white pawn at c2, white pawn at d2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 1. Full move number is 16. Black to move.