<%= for {move_pair, i} <- @game.moves |> Enum.chunk_every(2) |> Enum.with_index do %> <%= case move_pair do %> <% [white_move, black_move] -> %> <% [white_move] -> %> <% end %> <% end %>

Move no.	White	Black
<%= i + 1 %>.	"><%= move_text(white_move) %>	"><%= move_text(black_move) %>	"><%= move_text(white_move) %>