rnbqkb2/ppppp2p/r7/1n3p1P/5pP1/N1PPR3/PP2K3/1RB2QNB b q - 5 17
FEN state: rnbqkb2/ppppp2p/r7/1n3p1P/5pP1/N1PPR3/PP2K3/1RB2QNB b q - 5 17 ; Best move: b5a3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7, black pawn at e7 and black pawn at h7. Black rook at a6. Black knight at b5, black pawn at f5 and white pawn at h5. Black pawn at f4 and white pawn at g4. White knight at a3, white pawn at c3, white pawn at d3 and white rook at e3. White pawn at a2, white pawn at b2 and white king at e2. White rook at b1, white bishop at c1, white queen at f1, white knight at g1 and white bishop at h1. Black queenside is the only castle move available. Half move number is 5. Full move number is 17. Black to move.