r1b2bn1/p2pk3/n6r/qPp1pPp1/1PP3p1/B4QP1/2NP1P1P/R3KB1R b KQ - 2 15
FEN state: r1b2bn1/p2pk3/n6r/qPp1pPp1/1PP3p1/B4QP1/2NP1P1P/R3KB1R b KQ - 2 15 ; Best move: a6b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black bishop at f8 and black knight at g8. Black pawn at a7, black pawn at d7 and black king at e7. Black knight at a6 and black rook at h6. Black queen at a5, white pawn at b5, black pawn at c5, black pawn at e5, white pawn at f5 and black pawn at g5. White pawn at b4, white pawn at c4 and black pawn at g4. White bishop at a3, white queen at f3 and white pawn at g3. White knight at c2, white pawn at d2, white pawn at f2 and white pawn at h2. White rook at a1, white king at e1, white bishop at f1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 2. Full move number is 15. Black to move.