r1bq2nr/1pppbk1p/p1n3p1/4pp2/2PP4/1P1Q3P/P3PPPR/RNB1KBN1 w Q - 6 9
FEN state: r1bq2nr/1pppbk1p/p1n3p1/4pp2/2PP4/1P1Q3P/P3PPPR/RNB1KBN1 w Q - 6 9 ; Best move: d4e5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at d7, black bishop at e7, black king at f7 and black pawn at h7. Black pawn at a6, black knight at c6 and black pawn at g6. Black pawn at e5 and black pawn at f5. White pawn at c4 and white pawn at d4. White pawn at b3, white queen at d3 and white pawn at h3. White pawn at a2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white knight at g1. White queenside is the only castle move available. Half move number is 6. Full move number is 9. White to move.