Bound History
Instance XL-n2354-k631 (Set XL)
| Value | Status | Reported By | Timestamp | Solution |
|---|---|---|---|---|
| $940{,}625$ | BKS | Reported by Shiyao Bian (Independent Researcher), using an intelligent decompose-and-intensify matheuristic built around HGS-CVRP. |
2026/10/22 00:00:00 | |
| $940{,}630$ | Improved solution reported by Qianlong Wang, Wenhui Bai, Zengle Ge, Huaiming Li and Annan Li (Famou Agent Team, Baidu AI Cloud), using a decomposition-based improvement heuristic. |
2026/09/11 00:00:00 | ||
| $940{,}632$ | From Tobias Linke (Enpal Fulfillment B.V.). Obtained through explicit warm refinement of the published OptVerse-CityU solution. Credit for that starting solution remains with its authors. The routing engine's regional polisher reoptimizes small groups of routes using native tour enumeration and a compiled HiGHS set-partitioning master. A 60-second run on ten workers first reached 940,632; then it ran a further 600 seconds on ten workers from that candidate. The additional run found no improvement over our previous 940,632. These runs were on an Apple M4 Max. |
2026/09/10 22:45:24 | ||
| $940{,}634$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/02/11 15:51:41 | ||
| $940{,}646$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/02/04 12:36:21 | ||
| $940{,}666$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/02/03 13:22:40 | ||
| $940{,}670$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/02/01 05:53:33 | ||
| $940{,}691$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/29 01:44:20 | ||
| $940{,}692$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/28 12:28:47 | ||
| $940{,}698$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/27 05:34:18 | ||
| $940{,}703$ |
Team:
Sub-Appro
From CVRP BKS Challenge.
|
2026/01/24 12:04:28 | ||
| $940{,}726$ |
Team:
AILSII+
From CVRP BKS Challenge.
|
2026/01/22 04:38:15 | ||
| $940{,}731$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/18 21:54:04 | ||
| $940{,}742$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/18 21:44:08 | ||
| $940{,}755$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/16 08:37:05 | ||
| $940{,}762$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/14 09:03:23 | ||
| $940{,}773$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/14 05:05:48 | ||
| $940{,}790$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/14 01:59:20 | ||
| $940{,}809$ |
Team:
OptVerse-CityU
From CVRP BKS Challenge.
|
2026/01/13 15:30:13 | ||
| $940{,}825$ | From literature until 2025.
|
2025/12/31 00:00:00 |