r1b2k1r/p1p4p/n1Pq3n/1p1pp3/1P3p2/B3P2N/P2P1PPP/RN2KB1R b KQ - 1 12
FEN state: r1b2k1r/p1p4p/n1Pq3n/1p1pp3/1P3p2/B3P2N/P2P1PPP/RN2KB1R b KQ - 1 12 ; Best move: a6b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at f8 and black rook at h8. Black pawn at a7, black pawn at c7 and black pawn at h7. Black knight at a6, white pawn at c6, black queen at d6 and black knight at h6. Black pawn at b5, black pawn at d5 and black pawn at e5. White pawn at b4 and black pawn at f4. White bishop at a3, white pawn at e3 and white knight at h3. White pawn at a2, white pawn at d2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 1. Full move number is 12. Black to move.