r1b3nr/p1qk2b1/nppppppp/8/1BBP1P2/1PN1P2P/P1P3P1/2RQ1KNR b - - 1 12
FEN state: r1b3nr/p1qk2b1/nppppppp/8/1BBP1P2/1PN1P2P/P1P3P1/2RQ1KNR b - - 1 12 ; Best move: a6b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black queen at c7, black king at d7 and black bishop at g7. Black knight at a6, black pawn at b6, black pawn at c6, black pawn at d6, black pawn at e6, black pawn at f6, black pawn at g6 and black pawn at h6. White bishop at b4, white bishop at c4, white pawn at d4 and white pawn at f4. White pawn at b3, white knight at c3, white pawn at e3 and white pawn at h3. White pawn at a2, white pawn at c2 and white pawn at g2. White rook at c1, white queen at d1, white king at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 12. Black to move.