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Re:Show HN: Speedsums by zaroth on Monday June 29, 2015 @01:16AM (#9796536)
Nice simple UI. I like not having to hit enter!

If you want to make it more "fair" consider bining the questions by difficulty and randomly select some number from each bin, versus a random selection / generation over the entire pool of possible questions, or actually timing each response individually and showing an average of the percentiles for each answer, instead of a percentile for the average time.

Total sums done: 3,816,583 -- really?

Re:Show HN: Speedsums by refrigerator on Monday June 29, 2015 @05:27AM (#9797121)
I thought about taking steps to make sure that tests are more fair and balanced, but decided against it because I think the small element of luck is part of what makes you want to play again :)
Re:Show HN: Speedsums by zaroth on Tuesday June 30, 2015 @05:09AM (#9803868)
I think you might be right about that! On second thought, yes, a very interesting element of the game design.