r1bq3r/ppp2ppp/n2b1k2/3ppn2/4P2P/P7/1PPPKPPR/RNBQNB2 w - - 5 10
FEN state: r1bq3r/ppp2ppp/n2b1k2/3ppn2/4P2P/P7/1PPPKPPR/RNBQNB2 w - - 5 10 ; Best move: e4f5
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 b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black knight at a6, black bishop at d6 and black king at f6. Black pawn at d5, black pawn at e5 and black knight at f5. White pawn at e4 and white pawn at h4. White pawn at a3. White pawn at b2, white pawn at c2, white pawn at d2, white king 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 queen at d1, white knight at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 5. Full move number is 10. White to move.