When My Big Brother Finally Felt Small

Hey there! So my big brother Jake has always been the cool kid, everyone thinks he's a genius and can do everything better than me. Last weekend, I got an idea to get back at him for all those times he bossed me around when we were younger. We had this huge family game night planned, and instead of playing by the rules like usual, I convinced Jake that I could beat him in a board game called Stratego if we both put our phones away. He laughed and said something along the lines of 'Oh yeah? Watch me win anyway!' But turns out, my dad taught me how to play when I was 8, just because he thought it would be good for my problem-solving skills. And guess what? Not only did I beat Jake, but I won against all our uncles and cousins too! It felt amazing to finally see the big brother with his mouth hanging open, clueless about how he lost. But now, I feel kind of bad, maybe it's not nice to gloat so much. So what do you think? Is this fair game for siblings? Or should I let Jake win next time just to be a good sport?