WHat I did personally, was I threw a 10-pin, but I hit it really light on the left side, I threw the ball pretty hard, and the pin hit the side, hit the mat at the back, came back on the pin deck and spun around to hit the 7...
skill = 1/10 (for making the, but hitting it light)
luck = 9/10
obviously, It was all luck... and in a practice game....
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Easy slider...