This is a collection of instances for the Maximum Cut Problem and for unconstrained Binary Quadratic Programming from various sources, as (to be) documented in the instances section.
Attention: This a prototype website under construction. The current instance list is not at all complete, and will be extended stepwise. Notwithstanding, instances to be appended are subject to a thorough investigation and selection process.

Investigator, main coordinator

Major contributors and promoters “behind the scenes”


  • Claude Jordan (University of Bonn)
  • Sven Mallach (University of Bonn)


We are particularly grateful to

Related Solver Projects

We warmly refer to the following related (web-based) solver projects:

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