r1b1k3/p2p1ppr/n6p/1Pb5/1p1pN3/3Pn2P/1BPK4/NR1Q1B1R w q - 1 17
FEN state: r1b1k3/p2p1ppr/n6p/1Pb5/1p1pN3/3Pn2P/1BPK4/NR1Q1B1R w q - 1 17 ; Best move: d1f3
The current state of the chess board is: Black rook at a8, black bishop at c8 and black king at e8. Black pawn at a7, black pawn at d7, black pawn at f7, black pawn at g7 and black rook at h7. Black knight at a6 and black pawn at h6. White pawn at b5 and black bishop at c5. Black pawn at b4, black pawn at d4 and white knight at e4. White pawn at d3, black knight at e3 and white pawn at h3. White bishop at b2, white pawn at c2 and white king at d2. White knight at a1, white rook at b1, white queen at d1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 1. Full move number is 17. White to move.