Grep1

let leftOff = 0,
  topOff = 0,
  amount = 0,
  speed = 200,
  intervalId;

function move(){
  if(leftOff < 200 && topOff <= 0){
    $('#one').offset({
      left: leftOff++
    });
  }else if(leftOff >= 200 && topOff < 200){
    $('#one').offset({
      top: topOff++
    });
  }else if(leftOff > 0 && topOff >= 200){
    $('#one').offset({
      left: leftOff--
    });
  }else if(leftOff <= 0 && topOff > 0){
    $('#one').offset({
      top: topOff--
    });
  }
}

intervalId = setInterval(move, speed);

$('#one').click(function(event){
  if(amount === 10){
    clearInterval(intervalId);
    $('#one').text('Вы выиграли');
    return;
  }else{
    speed -= 10;
    amount++;
    clearInterval(intervalId);
    intervalId = setInterval(move, speed);
    $('#one').text(amount);
  }
});

<meta name="viewport" content="width=device-width,initial-scale=1">