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For this problem, I had to get to 23 before the computer. I had to choose one of the numbers 1 to 4, and then add it to the total. First, I kept losing. It was because the computer was getting to 18 first, from where I could not get to 23 in one go. So, I tried to get to 18 before the computer, but I could not!

To get to 18 before the computer, I had to reach 13 first, just like the computer was doing. So, I tried, but I still could not. I realized that I had to get to 8 before anything else. So, I tried, and I won! That is how I defeated the computer, by using its own strategies.