.tic-tac-toe
  - for (var turn = 1; turn <= 9; turn++)
    - for (var row = 1; row <= 3; row++)
      - for (var column = 1; column <= 3; column++)
        - var player = "1"
        - var positionHorizontal = ""
        - var positionVertical = ""
        - var positionDiagonal = ""
        
        if( turn % 2 == 0 )
          - var player = "2"
          
        if( column == 1 )
          - var positionHorizontal = " left first-column"
        else if( column == 2 )
          - var positionHorizontal = " middle second-column"
        else if( column == 3 )
          - var positionHorizontal = " right third-column"
         
        if( row == 1 )
          - var positionVertical = " top first-row"
        else if( row == 2 )
          - var positionVertical = " center second-row"
        else if( row == 3 )
          - var positionVertical = " bottom third-row"
        
        if( row == 1 && column == 1 )
          - var positionDiagonal = " first-diagonal"
        else if( row == 1 && column == 3 )
          - var positionDiagonal = " second-diagonal"
        else if( row == 2 && column == 2 )
          - var positionDiagonal = " first-diagonal second-diagonal"
        else if( row == 3 && column == 1 )
          - var positionDiagonal = " second-diagonal"
        else if( row == 3 && column == 3 )
          - var positionDiagonal = " first-diagonal"
        
        input(id="block" + turn + "-" + row + "-" + column type="radio" class="player-" + player + positionHorizontal + positionVertical + positionDiagonal + " turn-" + turn)
        label(for="block" + turn + "-" + row + "-" + column class="turn-" + turn)

  .end
    h3
    a(href="") 重新开始