rnbqkbr1/2pp2p1/3Qp2p/5p2/1p2P1P1/NPn5/P1PPBP1P/R3K1NR w q - 0 15
FEN state: rnbqkbr1/2pp2p1/3Qp2p/5p2/1p2P1P1/NPn5/P1PPBP1P/R3K1NR w q - 0 15 ; Best move: d6f4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at c7, black pawn at d7 and black pawn at g7. White queen at d6, black pawn at e6 and black pawn at h6. Black pawn at f5. Black pawn at b4, white pawn at e4 and white pawn at g4. White knight at a3, white pawn at b3 and black knight at c3. White pawn at a2, white pawn at c2, white pawn at d2, white bishop at e2, white pawn at f2 and white pawn at h2. White rook at a1, white king at e1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 15. White to move.