There are certain roulette systems in public to the surprise of me.
Please note the results will likely vary over time for the same search. I do not make any guarantees about what the result is going to look. But to date the post is made to search the surprises were active in google.com.
Google search: site:forum.metododinheiro.pt attach pdf
Google search: "roulette" site:saliu.com filetype:pdf
Google search: site:www.silverthornepublications.com filetype:pdf
Google search: izak matatya filetype:pdf
Google search: Mechanical Roulette Systems target roulette.pdf
Google search: flamingtorch roulette system.pdf
Google search: mayer roulette system pdf
Google search: roulette system filetype:doc