rn1qk3/2pbpp1p/pb3r2/Np3P2/8/3PP2p/PP3PBP/RQBK3R w q - 4 17
FEN state: rn1qk3/2pbpp1p/pb3r2/Np3P2/8/3PP2p/PP3PBP/RQBK3R w q - 4 17 ; Best move: g2a8
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8 and black king at e8. Black pawn at c7, black bishop at d7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at a6, black bishop at b6 and black rook at f6. White knight at a5, black pawn at b5 and white pawn at f5. White pawn at d3, white pawn at e3 and black pawn at h3. White pawn at a2, white pawn at b2, white pawn at f2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at b1, white bishop at c1, white king at d1 and white rook at h1. Black queenside is the only castle move available. Half move number is 4. Full move number is 17. White to move.