(()=> {
  var ANS = parseInt(Math.random() * 20) + 1;
  // console.log(ANS);
  // init GAME obj
  var GAME = GAME || {
     "start": true,
     "score": 0,
     "life": 7,
    hint: val=> {
      if (val > ANS) {
        return 'Ookii yo!';
      } 
      else if (val < ANS) {
        return 'Chiisai yo!';
      } else if (!/\d+/.test(val)) {
        return 'err';
      } else {
        return 'correct';
      }
    }
  };
  while (GAME.life > 0) {
    if (GAME.start && GAME.score !== 0) {
      ANS = parseInt(Math.random() * 20) + 1;
    }
    GAME.start = false;
    var res = parseInt(window.prompt('Life: ' + GAME.life + '\n Kazu wa [ 1-20 ] ??'));
    if (GAME.hint(res) == 'err') {
      alert('Suuji wo iretene!!');
    } else if (GAME.hint(res) == 'correct') {
      alert('Seikai !!');
      GAME.start = true;
      ++GAME.life;
      ++GAME.score;
    } else {
      alert(GAME.hint(res));
    }
    --GAME.life;
    res = null;
  }
  alert('Answer: ' + ANS + '  SCORE = ' + GAME.score);
})();

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javascript:(function(){var ANS=parseInt(Math.random()*20)+1;var GAME=GAME||{"start":true,"score":0,"life":7,hint:function(val){if(val>ANS){return'Ookii yo!'; } else if (val < ANS) { return 'Chiisai yo!'; }else if(!/\d+/.test(val)){return 'err';}else{return 'correct';}}};while(GAME.life>0){if(GAME.start&&GAME.score!==0){ANS=parseInt(Math.random()*20)+1;}GAME.start=false;var res=parseInt(window.prompt('Life: '+GAME.life+'\n Kazu wa [ 1-20 ] ??'));if(GAME.hint(res)=='err'){ alert('Suuji wo iretene!!');}else if(GAME.hint(res)=='correct'){alert('Seikai !!');GAME.start=true;++GAME.life;++GAME.score;}else{alert(GAME.hint(res));}--GAME.life;res=null;}alert('Answer: '+ANS+' SCORE = '+GAME.score);})();