r2qkbn1/pb1n1pp1/1Bp4r/1p1pp2p/1P4P1/2PP1P2/P3P2P/RN1QKBNR b KQq - 3 13
FEN state: r2qkbn1/pb1n1pp1/1Bp4r/1p1pp2p/1P4P1/2PP1P2/P3P2P/RN1QKBNR b KQq - 3 13 ; Best move: a7b6
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black knight at g8. Black pawn at a7, black bishop at b7, black knight at d7, black pawn at f7 and black pawn at g7. White bishop at b6, black pawn at c6 and black rook at h6. Black pawn at b5, black pawn at d5, black pawn at e5 and black pawn at h5. White pawn at b4 and white pawn at g4. White pawn at c3, white pawn at d3 and white pawn at f3. White pawn at a2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside, white queenside and black queenside castles are available. Half move number is 3. Full move number is 13. Black to move.