r3kb1r/4pppp/pp2bq1n/1N1pn1Q1/P1pPP2P/R7/1PP2PPR/2B1KBN1 b kq - 1 15
FEN state: r3kb1r/4pppp/pp2bq1n/1N1pn1Q1/P1pPP2P/R7/1PP2PPR/2B1KBN1 b kq - 1 15 ; Best move: a6b5
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at b6, black bishop at e6, black queen at f6 and black knight at h6. White knight at b5, black pawn at d5, black knight at e5 and white queen at g5. White pawn at a4, black pawn at c4, white pawn at d4, white pawn at e4 and white pawn at h4. White rook at a3. White pawn at b2, white pawn at c2, white pawn at f2, white pawn at g2 and white rook at h2. White bishop at c1, white king at e1, white bishop at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 1. Full move number is 15. Black to move.