r1b1k1r1/pp1q2b1/n2pppp1/7p/1Pp1PP2/N1PP2P1/PQRB3P/4KBNR b Kq - 2 15
FEN state: r1b1k1r1/pp1q2b1/n2pppp1/7p/1Pp1PP2/N1PP2P1/PQRB3P/4KBNR b Kq - 2 15 ; Best move: b7b5
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at b7, black queen at d7 and black bishop at g7. Black knight at a6, black pawn at d6, black pawn at e6, black pawn at f6 and black pawn at g6. Black pawn at h5. White pawn at b4, black pawn at c4, white pawn at e4 and white pawn at f4. White knight at a3, white pawn at c3, white pawn at d3 and white pawn at g3. White pawn at a2, white queen at b2, white rook at c2, white bishop at d2 and white pawn at h2. White king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and black queenside castles are available. Half move number is 2. Full move number is 15. Black to move.