rnq2br1/ppp1k1pp/3pbp2/5nB1/PPPpP1P1/5P1N/3N1KBP/R1Q1R3 b - - 4 20
FEN state: rnq2br1/ppp1k1pp/3pbp2/5nB1/PPPpP1P1/5P1N/3N1KBP/R1Q1R3 b - - 4 20 ; Best move: f5e3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at c8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at c7, black king at e7, black pawn at g7 and black pawn at h7. Black pawn at d6, black bishop at e6 and black pawn at f6. Black knight at f5 and white bishop at g5. White pawn at a4, white pawn at b4, white pawn at c4, black pawn at d4, white pawn at e4 and white pawn at g4. White pawn at f3 and white knight at h3. White knight at d2, white king at f2, white bishop at g2 and white pawn at h2. White rook at a1, white queen at c1 and white rook at e1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. Black to move.