See brain teasers in my interview description
Anónimo
After the first shot you would spin the wheel to have a 1/6 chance instead of a 1/5 chance. After the second shot (with adjacent bullets) you would also spin the wheel. He shoots and it's blank that means the next shot is either also blank or it's one of the bullets giving you 1/2. If you spin the wheel again it's 2/6 > 1/3