1rbqk3/2pppr2/5p1b/N6p/pp2P1n1/RQPK3P/3P2B1/1NB3R1 b - - 6 21
FEN state: 1rbqk3/2pppr2/5p1b/N6p/pp2P1n1/RQPK3P/3P2B1/1NB3R1 b - - 6 21 ; Best move: a4b3
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8 and black king at e8. Black pawn at c7, black pawn at d7, black pawn at e7 and black rook at f7. Black pawn at f6 and black bishop at h6. White knight at a5 and black pawn at h5. Black pawn at a4, black pawn at b4, white pawn at e4 and black knight at g4. White rook at a3, white queen at b3, white pawn at c3, white king at d3 and white pawn at h3. White pawn at d2 and white bishop at g2. White knight at b1, white bishop at c1 and white rook at g1. Both players have exhausted their castles. Half move number is 6. Full move number is 21. Black to move.