1n1q1r2/r1pk4/1p3bpn/p2p3p/PPBNN3/6PP/1RPPPPK1/2BQ1R2 b - - 2 20
FEN state: 1n1q1r2/r1pk4/1p3bpn/p2p3p/PPBNN3/6PP/1RPPPPK1/2BQ1R2 b - - 2 20 ; Best move: f6d4
The current state of the chess board is: Black knight at b8, black queen at d8 and black rook at f8. Black rook at a7, black pawn at c7 and black king at d7. Black pawn at b6, black bishop at f6, black pawn at g6 and black knight at h6. Black pawn at a5, black pawn at d5 and black pawn at h5. White pawn at a4, white pawn at b4, white bishop at c4, white knight at d4 and white knight at e4. White pawn at g3 and white pawn at h3. White rook at b2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at f2 and white king at g2. White bishop at c1, white queen at d1 and white rook at f1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. Black to move.