2k2bnr/1r1b4/p2p2pp/q1p2p2/1B1n1P1P/PPP3R1/3PP1P1/1R1QKBN1 b - - 0 21
FEN state: 2k2bnr/1r1b4/p2p2pp/q1p2p2/1B1n1P1P/PPP3R1/3PP1P1/1R1QKBN1 b - - 0 21 ; Best move: a5d8
The current state of the chess board is: Black king at c8, black bishop at f8, black knight at g8 and black rook at h8. Black rook at b7 and black bishop at d7. Black pawn at a6, black pawn at d6, black pawn at g6 and black pawn at h6. Black queen at a5, black pawn at c5 and black pawn at f5. White bishop at b4, black knight at d4, white pawn at f4 and white pawn at h4. White pawn at a3, white pawn at b3, white pawn at c3 and white rook at g3. White pawn at d2, white pawn at e2 and white pawn at g2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.