rnbqkr2/3ppp2/1p6/p1pP3p/P5p1/1P1B1PP1/1bPPK2P/RNBQ2NR b q - 0 15
FEN state: rnbqkr2/3ppp2/1p6/p1pP3p/P5p1/1P1B1PP1/1bPPK2P/RNBQ2NR b q - 0 15 ; Best move: b2a1
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 rook at f8. Black pawn at d7, black pawn at e7 and black pawn at f7. Black pawn at b6. Black pawn at a5, black pawn at c5, white pawn at d5 and black pawn at h5. White pawn at a4 and black pawn at g4. White pawn at b3, white bishop at d3, white pawn at f3 and white pawn at g3. Black bishop at b2, white pawn at c2, white pawn at d2, white king at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 15. Black to move.