r1b1k1nr/pp2p1bp/n1p3p1/3p1p2/3PPq2/2P2P1N/PP1QK1P1/RNB2B1R b kq - 2 13
FEN state: r1b1k1nr/pp2p1bp/n1p3p1/3p1p2/3PPq2/2P2P1N/PP1QK1P1/RNB2B1R b kq - 2 13 ; Best move: f4d2
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at e7, black bishop at g7 and black pawn at h7. Black knight at a6, black pawn at c6 and black pawn at g6. Black pawn at d5 and black pawn at f5. White pawn at d4, white pawn at e4 and black queen at f4. White pawn at c3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at b2, white queen at d2, white king at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 2. Full move number is 13. Black to move.