1rbqkb2/p1ppppp1/1p6/PP2n2r/2P1PP1n/N2P3N/1Q3KPP/R3B2R w - - 2 21
FEN state: 1rbqkb2/p1ppppp1/1p6/PP2n2r/2P1PP1n/N2P3N/1Q3KPP/R3B2R w - - 2 21 ; Best move: f4e5
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at e7, black pawn at f7 and black pawn at g7. Black pawn at b6. White pawn at a5, white pawn at b5, black knight at e5 and black rook at h5. White pawn at c4, white pawn at e4, white pawn at f4 and black knight at h4. White knight at a3, white pawn at d3 and white knight at h3. White queen at b2, white king at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. White to move.