r3kq2/1bpp1pp1/2n2n1r/p3p1Bp/1QN4P/2PP1P1N/PP2P1P1/1R2KB1R b Kq - 2 13
FEN state: r3kq2/1bpp1pp1/2n2n1r/p3p1Bp/1QN4P/2PP1P1N/PP2P1P1/1R2KB1R b Kq - 2 13 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black king at e8 and black queen at f8. Black bishop at b7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at g7. Black knight at c6, black knight at f6 and black rook at h6. Black pawn at a5, black pawn at e5, white bishop at g5 and black pawn at h5. White queen at b4, white knight at c4 and white pawn at h4. White pawn at c3, white pawn at d3, white pawn at f3 and white knight at h3. White pawn at a2, white pawn at b2, white pawn at e2 and white pawn at g2. White rook at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 2. Full move number is 13. Black to move.