rnb1k2r/p1pp1p1p/3b3p/1p1np2P/q3P1P1/1P1P1P1R/P1P1B3/RN1QK1N1 b kq - 0 15
FEN state: rnb1k2r/p1pp1p1p/3b3p/1p1np2P/q3P1P1/1P1P1P1R/P1P1B3/RN1QK1N1 b kq - 0 15 ; Best move: a4a5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at c7, black pawn at d7, black pawn at f7 and black pawn at h7. Black bishop at d6 and black pawn at h6. Black pawn at b5, black knight at d5, black pawn at e5 and white pawn at h5. Black queen at a4, white pawn at e4 and white pawn at g4. White pawn at b3, white pawn at d3, white pawn at f3 and white rook at h3. White pawn at a2, white pawn at c2 and white bishop at e2. White rook at a1, white knight at b1, white queen at d1, white king at e1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 0. Full move number is 15. Black to move.