1nb1kbn1/rpp3pr/p7/3ppp2/3Nq1Pp/PPP4B/5P1P/4RKR1 b - - 3 21
FEN state: 1nb1kbn1/rpp3pr/p7/3ppp2/3Nq1Pp/PPP4B/5P1P/4RKR1 b - - 3 21 ; Best move: e4d3
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black knight at g8. Black rook at a7, black pawn at b7, black pawn at c7, black pawn at g7 and black rook at h7. Black pawn at a6. Black pawn at d5, black pawn at e5 and black pawn at f5. White knight at d4, black queen at e4, white pawn at g4 and black pawn at h4. White pawn at a3, white pawn at b3, white pawn at c3 and white bishop at h3. White pawn at f2 and white pawn at h2. White rook at e1, white king at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 3. Full move number is 21. Black to move.