rnbq1b1r/p2p2kp/4p3/1pp2pp1/2PPnP2/PQ2PN2/1P4PP/RNB1KB1R w KQ - 2 10
FEN state: rnbq1b1r/p2p2kp/4p3/1pp2pp1/2PPnP2/PQ2PN2/1P4PP/RNB1KB1R w KQ - 2 10 ; Best move: d4d5
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 bishop at f8 and black rook at h8. Black pawn at a7, black pawn at d7, black king at g7 and black pawn at h7. Black pawn at e6. Black pawn at b5, black pawn at c5, black pawn at f5 and black pawn at g5. White pawn at c4, white pawn at d4, black knight at e4 and white pawn at f4. White pawn at a3, white queen at b3, white pawn at e3 and white knight at f3. White pawn at b2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, 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 2. Full move number is 10. White to move.