r1bqk1nr/pppp4/7b/6p1/NP2p2p/BnPPPPp1/P3Q1BP/R3K1NR b KQkq - 2 13
FEN state: r1bqk1nr/pppp4/7b/6p1/NP2p2p/BnPPPPp1/P3Q1BP/R3K1NR b KQkq - 2 13 ; Best move: b3a1
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black pawn at c7 and black pawn at d7. Black bishop at h6. Black pawn at g5. White knight at a4, white pawn at b4, black pawn at e4 and black pawn at h4. White bishop at a3, black knight at b3, white pawn at c3, white pawn at d3, white pawn at e3, white pawn at f3 and black pawn at g3. White pawn at a2, white queen at e2, white bishop at g2 and white pawn at h2. White rook at a1, white king at e1, white knight at g1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 13. Black to move.