** Only 81 moves ** Solution to MS Solitaire Collection, Daily Challenge, 8/4/2015, Spider, Earn a score of 1000 Here are the results of my priceless competitors: Zeming Jin - 134 moves Marcela Martinez - 98 moves (published 11/5/2020) Voranc - 98 moves (published 8/2/2015) My solution is unmistakably the most efficient. Note: You have to do a little math to obtain the move count. And be aware that the application doesnt count a move that completes a stack. Let A2 be the initial score. Let B2 be the final score. Let C2 be the number of stacks completed. The Excel formula is: A2-(B2-(C2*100)) So, in this case, 500 - (1019 - 600) = 500 - 419 = 81