rn1q1b1r/p3k1n1/bN4pp/2pp4/p2Pp3/1QP5/1P1BPp1P/RN1K1B1R b - - 0 20
FEN state: rn1q1b1r/p3k1n1/bN4pp/2pp4/p2Pp3/1QP5/1P1BPp1P/RN1K1B1R b - - 0 20 ; Best move: a4b3
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at d8, black bishop at f8 and black rook at h8. Black pawn at a7, black king at e7 and black knight at g7. Black bishop at a6, white knight at b6, black pawn at g6 and black pawn at h6. Black pawn at c5 and black pawn at d5. Black pawn at a4, white pawn at d4 and black pawn at e4. White queen at b3 and white pawn at c3. White pawn at b2, white bishop at d2, white pawn at e2, black pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at d1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 20. Black to move.