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app/Models/Prediction.php

@@ -39,7 +39,7 @@ class Prediction extends Authenticatable
         $size = $size == '大' ? 1 : 0;
         $oddOrEven = $oddOrEven == '双' ? 1 : 0;
         $data->is_valid = 0;
-        if ($data->size == $size && $data->odd_or_even == $oddOrEven) {
+        if ($data->size == $size || $data->odd_or_even == $oddOrEven) {
             $data->is_valid = 1;
         }
         $data->winning_numbers = $winningNumbers;