1r2kbn1/pppqpp1r/2np2p1/2N2Q2/3P3p/7P/PPPBPP1P/R3KB1R w KQ - 4 10
FEN state: 1r2kbn1/pppqpp1r/2np2p1/2N2Q2/3P3p/7P/PPPBPP1P/R3KB1R w KQ - 4 10 ; Best move: f5d7
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black queen at d7, black pawn at e7, black pawn at f7 and black rook at h7. Black knight at c6, black pawn at d6 and black pawn at g6. White knight at c5 and white queen at f5. White pawn at d4 and black pawn at h4. White pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white bishop at d2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 10. White to move.