r1bq3r/p1pNkpbp/1p1p3n/8/P1PP2p1/N3P2P/1P1BBPP1/R1Q1KR2 w Q - 0 17
FEN state: r1bq3r/p1pNkpbp/1p1p3n/8/P1PP2p1/N3P2P/1P1BBPP1/R1Q1KR2 w Q - 0 17 ; Best move: e3e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8 and black rook at h8. Black pawn at a7, black pawn at c7, white knight at d7, black king at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at b6, black pawn at d6 and black knight at h6. White pawn at a4, white pawn at c4, white pawn at d4 and black pawn at g4. White knight at a3, white pawn at e3 and white pawn at h3. White pawn at b2, white bishop at d2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at c1, white king at e1 and white rook at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 17. White to move.