1nbk3r/rp1ppp1p/2p2P1n/1B5P/PpP2Pp1/N2qR3/3PQ1P1/R1B1K1N1 w Q - 3 18
FEN state: 1nbk3r/rp1ppp1p/2p2P1n/1B5P/PpP2Pp1/N2qR3/3PQ1P1/R1B1K1N1 w Q - 3 18 ; Best move: f6e7
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at d8 and black rook at h8. Black rook at a7, black pawn at b7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at c6, white pawn at f6 and black knight at h6. White bishop at b5 and white pawn at h5. White pawn at a4, black pawn at b4, white pawn at c4, white pawn at f4 and black pawn at g4. White knight at a3, black queen at d3 and white rook at e3. White pawn at d2, white queen at e2 and white pawn at g2. White rook at a1, white bishop at c1, white king at e1 and white knight at g1. White queenside is the only castle move available. Half move number is 3. Full move number is 18. White to move.