r2qkb1r/2p1n1p1/1p1p1p2/p4b1p/1PB1P3/7N/P1PPKPPP/R1BQ3R w kq - 0 10
FEN state: r2qkb1r/2p1n1p1/1p1p1p2/p4b1p/1PB1P3/7N/P1PPKPPP/R1BQ3R w kq - 0 10 ; Best move: e4f5
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black knight at e7 and black pawn at g7. Black pawn at b6, black pawn at d6 and black pawn at f6. Black pawn at a5, black bishop at f5 and black pawn at h5. White pawn at b4, white bishop at c4 and white pawn at e4. White knight at h3. White pawn at a2, white pawn at c2, white pawn at d2, white king at e2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at d1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 10. White to move.