2rk1b1r/1pq2ppp/3p4/p1p1Nn2/2NnPp1P/P1PP2PR/1P6/R1BQK2B w Q - 6 17
FEN state: 2rk1b1r/1pq2ppp/3p4/p1p1Nn2/2NnPp1P/P1PP2PR/1P6/R1BQK2B w Q - 6 17 ; Best move: e4f5
The current state of the chess board is: Black rook at c8, black king at d8, black bishop at f8 and black rook at h8. Black pawn at b7, black queen at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at d6. Black pawn at a5, black pawn at c5, white knight at e5 and black knight at f5. White knight at c4, black knight at d4, white pawn at e4, black pawn at f4 and white pawn at h4. White pawn at a3, white pawn at c3, white pawn at d3, white pawn at g3 and white rook at h3. White pawn at b2. White rook at a1, white bishop at c1, white queen at d1, white king at e1 and white bishop at h1. White queenside is the only castle move available. Half move number is 6. Full move number is 17. White to move.