game.html.erb

<h1>Welcome to the longuest word!</h1>
<h2><%= @grid.join(" ") %></h2>
<form action="score">
  <input type="text" name="guess" placeholder="What's your best shot?">
  <input type="hidden" value=<%= @grid.join("") %> name="grid">
  <input type="hidden" value="<%= @start_time %>" name="start_time">
  <input type="submit" value="send">
</form>