Autoplay script for SEGA minigame: https://chunithm.sega.jp/minigame_memory/

autoplay.js

Array.from({ length: document.querySelectorAll('div.card-backPicture').length / 2 })
  .map((_, i) => [...document.querySelectorAll(`div.card-backPicture`)].filter(el => el.style.backgroundImage === `url("./images/master/score-${String(i + 1).padStart(2, '0')}.jpg")`))
  .reduce((promise, pair) => {
    return promise.then(() => {
      return new Promise(resolve => {
        setTimeout(() => {
          resolve(pair.map(el => el.click()))
        }, 3000); 
      })
    })
  }, Promise.resolve())