diff --git a/Solver/SolverConfig.cs b/Solver/SolverConfig.cs
index 5122f51..d261949 100644
--- a/Solver/SolverConfig.cs
+++ b/Solver/SolverConfig.cs
@@ -43,6 +43,9 @@ public readonly record struct SolverConfig
         ExplorationConstant = 4;
         MaxStepCount = 30;
         MaxRolloutStepCount = 99;
+        // Use 80% of all cores if less than 20 cores are available, otherwise use all but 4 cores. Keep at least 1 core.
+        MaxThreadCount = Math.Max(1, Math.Max(Environment.ProcessorCount - 4, (int)MathF.Floor(Environment.ProcessorCount * 0.8f)));
+        // Use 32 forks at minimum, or the number of cores, whichever is higher.
         ForkCount = Math.Max(Environment.ProcessorCount, 32);
         FurcatedActionCount = ForkCount / 2;
         StrictActions = true;