r3kb1r/p1p1ppp1/bpq5/3p3p/3P2nP/P1PQPn1R/1P2KPP1/RNB2BN1 b kq - 4 12
FEN state: r3kb1r/p1p1ppp1/bpq5/3p3p/3P2nP/P1PQPn1R/1P2KPP1/RNB2BN1 b kq - 4 12 ; Best move: a6d3
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at e7, black pawn at f7 and black pawn at g7. Black bishop at a6, black pawn at b6 and black queen at c6. Black pawn at d5 and black pawn at h5. White pawn at d4, black knight at g4 and white pawn at h4. White pawn at a3, white pawn at c3, white queen at d3, white pawn at e3, black knight at f3 and white rook at h3. White pawn at b2, white king at e2, white pawn at f2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 12. Black to move.