All these pings from ws0 and from r1 should succeed.
(Replace XX with your group number)

ping 10.91.0.254
ping 10.91.0.XX
ping 10.XX.0.1
ping 10.XX.0.2
ping 10.XX.0.3
ping 10.XX.0.20
ping 10.XX.1.193
ping 10.XX.1.197
ping 10.XX.1.194
ping 10.XX.1.198
ping 10.XX.1.1
ping 10.XX.1.129
ping 10.XX.2.1


traceroute from ws0 to 10.XX.1.1 should go through r2
traceroute from ws0 to 10.XX.1.129 should go through r2
traceroute from ws0 to 10.XX.2.1 should go through r3


traceroute from r1 to 10.91.0.254 should go through r2
traceroute from r1 to 10.XX.0.1 should go through r2
traceroute from r1 to 10.XX.2.1 should go through r3