r1b1kb1r/2pN2p1/1p1q3p/p3pp2/1B3PPP/P2P2n1/2P1P1BR/RN1QK3 b Qkq - 0 15
FEN state: r1b1kb1r/2pN2p1/1p1q3p/p3pp2/1B3PPP/P2P2n1/2P1P1BR/RN1QK3 b Qkq - 0 15 ; Best move: a5b4
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, white knight at d7 and black pawn at g7. Black pawn at b6, black queen at d6 and black pawn at h6. Black pawn at a5, black pawn at e5 and black pawn at f5. White bishop at b4, white pawn at f4, white pawn at g4 and white pawn at h4. White pawn at a3, white pawn at d3 and black knight at g3. White pawn at c2, white pawn at e2, white bishop at g2 and white rook at h2. White rook at a1, white knight at b1, white queen at d1 and white king at e1. White queenside, black kingside and black queenside castles are available. Half move number is 0. Full move number is 15. Black to move.