Discussion on: Daily Challenge #285 - Jewel Thief

const crackSafe = safe => {
  const combo = ['L0', 'L0', 'L0'];
  const directions = ['L', 'R'];

  const try = (stage, combo) => {
    const comboWorked = new Array(stage + 1).fill('click').join(' ');

    for (let i = 0; i < 100; i++) {
      directions.forEach(dir => {
        combo[stage] = `${dir}${i}`;
        if safe.unlock(combo.join('-')) === comboWorked {
          return true;
        }
      });
    }
    return false;
  };

  for (let stage = 0; stage < 3; stage++) {
    if (!try(stage, combo)) {
      return -1;
    }
  }

  return safe.open(combo);
};