r2qk3/pp3p2/3p2pn/N1p2b2/P3P1p1/2NB2RP/1PPPKb2/R1BQ1r2 w - - 1 21
FEN state: r2qk3/pp3p2/3p2pn/N1p2b2/P3P1p1/2NB2RP/1PPPKb2/R1BQ1r2 w - - 1 21 ; Best move: d1f1
The current state of the chess board is: Black rook at a8, black queen at d8 and black king at e8. Black pawn at a7, black pawn at b7 and black pawn at f7. Black pawn at d6, black pawn at g6 and black knight at h6. White knight at a5, black pawn at c5 and black bishop at f5. White pawn at a4, white pawn at e4 and black pawn at g4. White knight at c3, white bishop at d3, white rook at g3 and white pawn at h3. White pawn at b2, white pawn at c2, white pawn at d2, white king at e2 and black bishop at f2. White rook at a1, white bishop at c1, white queen at d1 and black rook at f1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.