Do not cover low spades.

Doing that Robin, thanks.

Two moves I remember... 6 plays up and 4 plays over

8 off, any other clues?

Right, Robin!  That's happened to me dozens if not hundreds of times now since I got my computer back. It's really annoying.  It even happens sometimes when I'm deliberately going very slow.  

Windows 8 and 10 seldom do that. Only once in awhile does the hourglass show and restarts the game and that is annoying to me.

Susan , with Safari, I find that  I have to be careful how I click on my cards. If I click too fast on them, especially the stock pile, a window pops up stating I had an error  in the Web2WebKit  process. So I dare not try for speed here. I can either report or just close the window ; in which then the game restarts.  I cannot help wonder if there are some incompatibility  issues or it is  some security code written in Safari as a safeguard.  Either way, it is annoying.

99 with Q or Q 1st.

Brilliant Susan !!  Who says you cannot play ?!

yes