4kbnr/2pqpp2/rpnp4/1b5p/3PNp2/1PP1P2P/PB2QKPR/R5N1 b k - 6 15
FEN state: 4kbnr/2pqpp2/rpnp4/1b5p/3PNp2/1PP1P2P/PB2QKPR/R5N1 b k - 6 15 ; Best move: b5e2
The current state of the chess board is: Black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at c7, black queen at d7, black pawn at e7 and black pawn at f7. Black rook at a6, black pawn at b6, black knight at c6 and black pawn at d6. Black bishop at b5 and black pawn at h5. White pawn at d4, white knight at e4 and black pawn at f4. White pawn at b3, white pawn at c3, white pawn at e3 and white pawn at h3. White pawn at a2, white bishop at b2, white queen at e2, white king at f2, white pawn at g2 and white rook at h2. White rook at a1 and white knight at g1. Black kingside is the only castle move available. Half move number is 6. Full move number is 15. Black to move.