1rbqkbnr/pppp4/5p1p/1N2p1p1/P7/1P3PPB/3PPK1P/n1BQ2NR w k - 0 10
FEN state: 1rbqkbnr/pppp4/5p1p/1N2p1p1/P7/1P3PPB/3PPK1P/n1BQ2NR w k - 0 10 ; Best move: d2d4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7 and black pawn at d7. Black pawn at f6 and black pawn at h6. White knight at b5, black pawn at e5 and black pawn at g5. White pawn at a4. White pawn at b3, white pawn at f3, white pawn at g3 and white bishop at h3. White pawn at d2, white pawn at e2, white king at f2 and white pawn at h2. Black knight at a1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 10. White to move.