1n6/r2pkpr1/bp2pq1p/QBpn2N1/P1PPPb2/RP3P2/3BN1PP/6KR b - - 2 21
FEN state: 1n6/r2pkpr1/bp2pq1p/QBpn2N1/P1PPPb2/RP3P2/3BN1PP/6KR b - - 2 21 ; Best move: b6a5
The current state of the chess board is: Black knight at b8. Black rook at a7, black pawn at d7, black king at e7, black pawn at f7 and black rook at g7. Black bishop at a6, black pawn at b6, black pawn at e6, black queen at f6 and black pawn at h6. White queen at a5, white bishop at b5, black pawn at c5, black knight at d5 and white knight at g5. White pawn at a4, white pawn at c4, white pawn at d4, white pawn at e4 and black bishop at f4. White rook at a3, white pawn at b3 and white pawn at f3. White bishop at d2, white knight at e2, white pawn at g2 and white pawn at h2. White king at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move.