1nbqkbnr/r2p2p1/4pp2/p1p5/1p2NPPp/N1P1P2B/PP1PK2P/R1B1Q1R1 b k - 1 12
FEN state: 1nbqkbnr/r2p2p1/4pp2/p1p5/1p2NPPp/N1P1P2B/PP1PK2P/R1B1Q1R1 b k - 1 12 ; Best move: b4a3
The current state of the chess board is: Black knight 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 rook at a7, black pawn at d7 and black pawn at g7. Black pawn at e6 and black pawn at f6. Black pawn at a5 and black pawn at c5. Black pawn at b4, white knight at e4, white pawn at f4, white pawn at g4 and black pawn at h4. White knight at a3, white pawn at c3, white pawn at e3 and white bishop at h3. White pawn at a2, white pawn at b2, white pawn at d2, white king at e2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at e1 and white rook at g1. Black kingside is the only castle move available. Half move number is 1. Full move number is 12. Black to move.