r1b4r/1p2kpbp/p3pn2/6p1/1P1p1PP1/P2qPN1P/1P1B1K2/RN3B1R w - - 2 21
FEN state: r1b4r/1p2kpbp/p3pn2/6p1/1P1p1PP1/P2qPN1P/1P1B1K2/RN3B1R w - - 2 21 ; Best move: f1d3
The current state of the chess board is: Black rook at a8, black bishop at c8 and black rook at h8. Black pawn at b7, black king at e7, black pawn at f7, black bishop at g7 and black pawn at h7. Black pawn at a6, black pawn at e6 and black knight at f6. Black pawn at g5. White pawn at b4, black pawn at d4, white pawn at f4 and white pawn at g4. White pawn at a3, black queen at d3, white pawn at e3, white knight at f3 and white pawn at h3. White pawn at b2, white bishop at d2 and white king at f2. White rook at a1, white knight at b1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. White to move.