Bound History

Instance XL-n2961-k55 (Set XL)

Plot

Value Status Reported By Timestamp Solution
$107{,}934$ BKS
User: Laio Oriel Seman (IFSC)
Report by Laio Oriel Seman, using a modified version of HGS: the incumbent is seeded with the current BKS and improved by repeatedly re-solving small neighborhoods of routes with independent, parallel HGS populations under threshold acceptance and diverse elite restarts.
2026/10/30 08:40:06
$107{,}936$
User: Christoph Breunig (Lykophos.de)
Reported by Christoph Breunig (LYKOPHOS) - Starting from the published BKS, subsets of routes are re-solved with HGS-CVRP (Vidal 2022), using threshold acceptance and an elite pool.
2026/10/29 17:34:24
$107{,}937$
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
$107{,}945$
From CVRP BKS Challenge.
2026/02/03 13:22:50
$107{,}950$
From CVRP BKS Challenge.
2026/01/30 01:42:15
$107{,}973$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/20 12:23:27
$108{,}009$
From CVRP BKS Challenge.
2026/01/19 21:03:23
$108{,}012$
From CVRP BKS Challenge.
2026/01/16 10:16:39
$108{,}016$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/15 02:34:18
$108{,}017$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/15 02:27:21
$108{,}020$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/15 01:40:01
$108{,}023$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/15 01:33:12
$108{,}026$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/15 01:11:44
$108{,}032$
Team: Sub-Appro
From CVRP BKS Challenge.
2026/01/15 01:03:17
$108{,}077$
From CVRP BKS Challenge.
2026/01/14 14:38:05
$108{,}079$
Team: TQrouting
From CVRP BKS Challenge.
2026/01/14 12:08:02
$108{,}080$
From CVRP BKS Challenge.
2026/01/14 09:39:46
$108{,}081$
From CVRP BKS Challenge.
2026/01/14 09:03:34
$108{,}082$
From CVRP BKS Challenge.
2026/01/14 01:49:25
$108{,}083$
From CVRP BKS Challenge.
2026/01/13 15:26:49
$108{,}084$
From literature until 2025.
2025/12/31 00:00:00