1n1q1knr/rb5p/1pp2p2/pP1p2PQ/P3Pp2/b1PN4/1R1P2P1/1NB1KBR1 b - - 1 20
FEN state: 1n1q1knr/rb5p/1pp2p2/pP1p2PQ/P3Pp2/b1PN4/1R1P2P1/1NB1KBR1 b - - 1 20 ; Best move: a3d6
The current state of the chess board is: Black knight at b8, black queen at d8, black king at f8, black knight at g8 and black rook at h8. Black rook at a7, black bishop at b7 and black pawn at h7. Black pawn at b6, black pawn at c6 and black pawn at f6. Black pawn at a5, white pawn at b5, black pawn at d5, white pawn at g5 and white queen at h5. White pawn at a4, white pawn at e4 and black pawn at f4. Black bishop at a3, white pawn at c3 and white knight at d3. White rook at b2, white pawn at d2 and white pawn at g2. White knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 1. Full move number is 20. Black to move.