Overview of problem instances

Info! Submissions are again open.

Submit any new best found solution or lower bound to itc2021@ugent.be.

The list below provides an overview of the problem instances that are already available. While the early instances are available on the website already, the middle group of instances will be released in February 2021 and the late group of instances will follow half February 2021. Click on the name of the problem instance to view the rax XML file (firefox users: additionally right-click > View Page Source).
Download Test Instances
Download Early Instances
Download Middle Instances
Download Late Instances
Instance name Contributor Teams Slots Classification Contributor Best UB Best LB Best UB History
Test Instance Demo ITC2021 4 6 2RR, C, P | SE1 | SC (0, 0) (0, 0) history
Test Instance 1 ITC2021 6 10 2RR, C, P | BR2, CA1, CA3, GA1, SE1 | SC ITC2021 (0, 1066) (0, 1066) history
Test Instance 2 ITC2021 6 10 2RR, C, NULL | BR1, CA1, CA2, FA2 | SC ITC2021 (0, 176 ) (0, 176) history
Test Instance 3 ITC2021 6 10 2RR, C, NULL | CA1, CA2, CA3, CA4 | SC ITC2021 (0, 1253) (0, 1253) history
Test Instance 4 ITC2021 6 10 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, FA2, GA1, SE1 | SC ITC2021 (0, 4535) (0, 4535) history
Test Instance 5 ITC2021 16 30 2RR, C, P | BR1, CA1, CA2, CA4, GA1 | SC ITC2021 (0, 2) (0, 2) history
Test Instance 6 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, GA1 | SC DITUoI@Arta - Angelos Dimitsas, Christos Valouxis and Christos Gogos (0, 0) (0, 3144) history
Test Instance 7 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team TU/e (0, 0) (0, 4421) history
Test Instance 8 ITC2021 20 38 2RR, C, P | BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC DITUoI@Arta - Angelos Dimitsas, Christos Valouxis and Christos Gogos (0, 0) (0, 3165) history
Early 1 ITC2021 16 30 2RR, C, P | BR1, BR2, CA1, CA2, CA4, FA2, GA1, SE1 | SC Team UoS (0, 1) (0, 362) history
Early 2 ITC2021 16 30 2RR, C, P | BR1, BR2, CA1, CA3, FA2, GA1 | SC Team DES (0, 0) (0, 145) history
Early 3 ITC2021 16 30 2RR, C, P | BR1, BR2, CA1, CA2, CA3, FA2, GA1 | SC Team DES (0, 76) (0, 992) history
Early 4 ITC2021 18 34 2RR, C, P | BR1, BR2, CA1, CA2, CA4, GA1, SE1 | SC Team DES (0, 0) (0, 507) history
Early 5 ITC2021 18 34 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team UoS (0, 284) (0, 3127) history
Early 6 ITC2021 18 34 2RR, C, P | BR2, CA1, CA2, CA3, CA4, FA2, GA1, SE1 | SC Team DES (0, 659) (0, 3325) history
Early 7 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team UoS (0, 1358) (0, 4763) history
Early 8 ITC2021 18 34 2RR, C, NULL | BR1, CA1, CA2, CA3, CA4, FA2, GA1 | SC Team Udine (0, 223) (0, 1051) history
Early 9 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, FA2, GA1 | SC David Van Bulck (0, 0) (0, 56) history
Early 10 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, SE1 | SC Team UoS (0, 338) (0, 3400) history
Early 11 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team DES (0, 388) (0, 4426) history
Early 12 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, GA1 | SC David Van Bulck (0, 0) (0, 315) history
Early 13 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, GA1 | SC Team UoS (0, 2) (0, 121) history
Early 14 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, FA2, GA1 | SC Team Gionar (0, 1) (0, 4) history
Early 15 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, FA2, GA1 | SC David Van Bulck (0, 515) (0, 2955) history
Middle 1 ITC2021 16 30 2RR, C, P | BR1, BR2, CA1, CA2, CA4, SE1 | SC Team UoS (0, 2971) (0, 5177) history
Middle 2 ITC2021 16 30 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team UoS (0, 3024) (0, 7381) history
Middle 3 ITC2021 16 30 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, FA2, GA1, SE1 | SC Team Udine (0, 3532) (0, 9542) history
Middle 4 ITC2021 18 34 2RR, C, P | BR1, CA1, CA2, CA3, CA4, GA1 | SC Team UoS (0, 7) (0, 7) history
Middle 5 ITC2021 18 34 2RR, C, P | BR1, BR2, CA1, CA2, CA3, FA2, GA1 | SC David Van Bulck (0, 55) (0, 279) history
Middle 6 ITC2021 18 34 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team DES (0, 39) (0, 1120) history
Middle 7 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team DES (0, 44) (0, 1783) history
Middle 8 ITC2021 18 34 2RR, C, NULL | BR1, CA1, CA2, CA3, CA4, GA1 | SC Team UoS (0, 2) (0, 129) history
Middle 9 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, FA2, GA1 | SC David Van Bulck (0, 0) (0, 415) history
Middle 10 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA4, GA1 | SC Team UoS (0, 6) (0, 1250) history
Middle 11 ITC2021 20 38 2RR, C, P | BR1, CA1, CA2, CA3, CA4, FA2, GA1 | SC Team DES (0, 359) (0, 2446) history
Middle 12 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA3, FA2, GA1, SE1 | SC David Van Bulck (0, 3) (0, 599) history
Middle 13 ITC2021 20 38 2RR, C, NULL | BR1, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team DES (0, 0) (0, 252) history
Middle 14 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, FA2, GA1 | SC David Van Bulck (0, 0) (0, 1140) history
Middle 15 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, GA1, SE1 | SC Team DES (0, 2) (0, 485) history
Late 1 ITC2021 16 30 2RR, C, NULL | BR1, CA1, CA2, CA3, CA4, FA2, GA1 | SC Team DES (0, 1116) (0, 1922) history
Late 2 ITC2021 16 30 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, GA1 | SC Team UoS (0, 2846) (0, 5400) history
Late 3 ITC2021 16 30 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, FA2, GA1, SE1 | SC Team UoS (0, 477) (0, 2369) history
Late 4 ITC2021 18 34 2RR, C, P | BR1, CA1, CA4, GA1, SE1 | SC Team UoS (0, 0) (0, 0) history
Late 5 ITC2021 18 34 2RR, C, P | BR2, CA1, CA2, CA3, CA4, FA2, GA1 | SC Team DES (0, 410) (0, 1923) history
Late 6 ITC2021 18 34 2RR, C, P | BR1, BR2, CA1, CA2, CA4, GA1, SE1 | SC Team UoS (0, 7) (0, 923) history
Late 7 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, GA1, SE1 | SC Saturn (0, 6) (0, 1558) history
Late 8 ITC2021 18 34 2RR, C, P | BR1, BR2, CA1, CA2, CA3, GA1, SE1 | SC Team UoS (0, 91) (0, 934) history
Late 9 ITC2021 18 34 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, FA2, GA1 | SC David Van Bulck (0, 5) (0, 498) history
Late 10 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA3, CA4, GA1, SE1 | SC Team DES (0, 1) (0, 1945) history
Late 11 ITC2021 20 38 2RR, C, P | BR1, BR2, CA1, CA2, CA3, FA2, GA1 | SC Team DES (0, 0) (0, 202) history
Late 12 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA2, CA3, CA4, SE1 | SC Team DES (0, 203) (0, 3428) history
Late 13 ITC2021 20 38 2RR, C, NULL | BR2, CA1, CA2, CA3, CA4, FA2, GA1, SE1 | SC George Fonseca and Tulio A. M. Toffolo (0, 8) (0, 1820) history
Late 14 ITC2021 20 38 2RR, C, NULL | BR1, CA1, CA2, CA3, CA4, FA2, GA1 | SC David Van Bulck (0, 8) (0, 1174) history
Late 15 ITC2021 20 38 2RR, C, NULL | BR1, BR2, CA1, CA3, FA2, GA1 | SC David Van Bulck (0, 0) (0, 0) history