r1bq1bnr/1pp1p1p1/p1nk4/3p3p/1P2Pp2/N6P/P1PPBPP1/1RBQK1NR w K - 0 9
FEN state: r1bq1bnr/1pp1p1p1/p1nk4/3p3p/1P2Pp2/N6P/P1PPBPP1/1RBQK1NR w K - 0 9 ; Best move: e4d5
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at e7 and black pawn at g7. Black pawn at a6, black knight at c6 and black king at d6. Black pawn at d5 and black pawn at h5. White pawn at b4, white pawn at e4 and black pawn at f4. White knight at a3 and white pawn at h3. White pawn at a2, white pawn at c2, white pawn at d2, white bishop at e2, white pawn at f2 and white pawn at g2. White rook at b1, white bishop at c1, white queen at d1, white king at e1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 0. Full move number is 9. White to move.