rq2kbr1/pp1n1p2/2pp1npp/P1P1p3/1P3P2/N1KP4/4b1PP/R1B1QBNR b q - 0 13
FEN state: rq2kbr1/pp1n1p2/2pp1npp/P1P1p3/1P3P2/N1KP4/4b1PP/R1B1QBNR b q - 0 13 ; Best move: f6d5
The current state of the chess board is: Black rook at a8, black queen at b8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at b7, black knight at d7 and black pawn at f7. Black pawn at c6, black pawn at d6, black knight at f6, black pawn at g6 and black pawn at h6. White pawn at a5, white pawn at c5 and black pawn at e5. White pawn at b4 and white pawn at f4. White knight at a3, white king at c3 and white pawn at d3. Black bishop at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white queen at e1, white bishop at f1, 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 13. Black to move.