You can either use the session-wide link, persistent links, or single-use links.

Session-wide link

If it is impractical to distribute distinct URLs to each participant, you can give the following start URL to all 9 participants.

http://otree-demo.econ.tools/join/9sf6k6slqh/

Note: unlike the other link modes, this does not prevent the same person from playing twice.

Persistent links

If you want to give your participants permanent links that don't change, you should create your session in a room.

Single-use links

Below are single-use links, which you can distribute to your participants. Each link has a unique code for the participant.

P1	http://otree-demo.econ.tools/InitializeParticipant/8aqdc3cf
P2	http://otree-demo.econ.tools/InitializeParticipant/rbtxostk
P3	http://otree-demo.econ.tools/InitializeParticipant/ijz5i0ii
P4	http://otree-demo.econ.tools/InitializeParticipant/0g1nfoer
P5	http://otree-demo.econ.tools/InitializeParticipant/ills7g53
P6	http://otree-demo.econ.tools/InitializeParticipant/kpa464ay
P7	http://otree-demo.econ.tools/InitializeParticipant/qshatrpv
P8	http://otree-demo.econ.tools/InitializeParticipant/skk6looa
P9	http://otree-demo.econ.tools/InitializeParticipant/n1en8ufv