1rbqkbnr/1pp3pp/pP3p2/P2pp1N1/1n6/B5PP/RQPPPP2/1N2KB1R b K - 2 13
FEN state: 1rbqkbnr/1pp3pp/pP3p2/P2pp1N1/1n6/B5PP/RQPPPP2/1N2KB1R b K - 2 13 ; Best move: b4a2
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black pawn at g7 and black pawn at h7. Black pawn at a6, white pawn at b6 and black pawn at f6. White pawn at a5, black pawn at d5, black pawn at e5 and white knight at g5. Black knight at b4. White bishop at a3, white pawn at g3 and white pawn at h3. White rook at a2, white queen at b2, white pawn at c2, white pawn at d2, white pawn at e2 and white pawn at f2. White knight at b1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 13. Black to move.