anchor.diff:      selectGame.selectedIndex <- 0.0 
       updateUi game
   
  -buttonNewGame.addEventListener_click((fun _ -> newGameOnClick(); null), false)
  +buttonNewGame.addEventListener_click((fun _ -> newGameOnClick(); null))
       
   let selectGameOnChange () =
       let presetGtor gameNum =
  
positive.code:         let game = api.NewGame { NumberOfColumns = 15; NumberOfRows = 15; StoneGenerator = presetGtor gameNum }
          updateUi game
  
  selectGame.addEventListener_change((fun _ -> selectGameOnChange(); null), false)
  
  api.NewGame defaultConfig |> updateUi 
negative.code:         NewGame = newGame
          Play = playIfRunning }
  
  open FSharp
  open Fable.Core 
  open Fable.Import.Browser
  open System
  