r1b1kb1r/1pp2ppp/p2pq3/n1P1pn2/P1B1P2P/2N3P1/RP1PKP2/2BQ2NR b kq - 4 12
FEN state: r1b1kb1r/1pp2ppp/p2pq3/n1P1pn2/P1B1P2P/2N3P1/RP1PKP2/2BQ2NR b kq - 4 12 ; Best move: f5d4
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 b7, black pawn at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at d6 and black queen at e6. Black knight at a5, white pawn at c5, black pawn at e5 and black knight at f5. White pawn at a4, white bishop at c4, white pawn at e4 and white pawn at h4. White knight at c3 and white pawn at g3. White rook at a2, white pawn at b2, white pawn at d2, white king at e2 and white pawn at f2. White bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 4. Full move number is 12. Black to move.