Arduino Skill Stop Push button error

Question

I made a skill stop game from Arduino Uno and a pushbutton.Here is the code:

byte led_one=2;
byte led_two=3;
byte winner_led=4;
byte led_four=5;
byte led_five=6;
byte pushbutton=12;
byte score=0;
int pushbutton_value=digitalRead(pushbutton);

void setup() 
{
// put your setup code here, to run once:
   pinMode(led_one,OUTPUT);
   pinMode(led_two,OUTPUT);
   pinMode(winner_led,OUTPUT);
   pinMode(pushbutton,INPUT_PULLUP);
   pinMode(led_four,OUTPUT);
   pinMode(led_five,OUTPUT);
   Serial.begin(9600);
  }

void loop() 
{
// put your main code here, to run repeatedly:

  for (int x=1;x<=6;x++)
  {
    digitalWrite(x,HIGH);
    delay(250);
    digitalWrite(x,LOW);
    delay(250);
    if(pushbutton_value==HIGH && x==winner_led)
    {
       score+=500;
    }
    else if(pushbutton_value==HIGH && x==led_one)
    {
       score+=100;
    }
  }
 Serial.println(score);
}

My Problem is that Whenever I push the button The Serial Monitor is printing out the wrong score

Answer 1

I wonder why you initialized score as byte! Change it to int. As you can see when you Serial Print your score value doesn't cross 256 because the largest value a byte can have is 256 but you are summing score to 500