Hi AkiTetsuya,
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The use of the math blocks for multiplying the scores seems fine, if you are running into issues, we should look at Play X ScoreY text. Is that populating a number? From what I can see, you are setting those scores to 0.
If you’re looking to calculate scores, it is always best to start with a variable for each player and set that variable to 0. From there, you can increase or decrease the value of the variable (i.e. the score) and then use the variables to add up the scores.