r1b1kb1r/p3pp1p/2pp2p1/1pnn1P2/q3P3/N2P3N/PP2B1PP/R1B1K2R b Qkq - 0 12
FEN state: r1b1kb1r/p3pp1p/2pp2p1/1pnn1P2/q3P3/N2P3N/PP2B1PP/R1B1K2R b Qkq - 0 12 ; Best move: d5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black pawn at e7, black pawn at f7 and black pawn at h7. Black pawn at c6, black pawn at d6 and black pawn at g6. Black pawn at b5, black knight at c5, black knight at d5 and white pawn at f5. Black queen at a4 and white pawn at e4. White knight at a3, white pawn at d3 and white knight at h3. White pawn at a2, white pawn at b2, white bishop at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white king at e1 and white rook at h1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 12. Black to move.