r1b1k2r/pppp1pp1/nb2p2n/1N3q1p/2PP2PP/1P1Q1N2/P3PK2/1R3B1R w kq - 9 18
FEN state: r1b1k2r/pppp1pp1/nb2p2n/1N3q1p/2PP2PP/1P1Q1N2/P3PK2/1R3B1R w kq - 9 18 ; Best move: g4f5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at g7. Black knight at a6, black bishop at b6, black pawn at e6 and black knight at h6. White knight at b5, black queen at f5 and black pawn at h5. White pawn at c4, white pawn at d4, white pawn at g4 and white pawn at h4. White pawn at b3, white queen at d3 and white knight at f3. White pawn at a2, white pawn at e2 and white king at f2. White rook at b1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 9. Full move number is 18. White to move.