diff --git a/src/main/java/puzzle/Main.java b/src/main/java/puzzle/Main.java
index 6fd7130..afdf8e9 100644
--- a/src/main/java/puzzle/Main.java
+++ b/src/main/java/puzzle/Main.java
@@ -371,7 +371,7 @@ public class Main {
    static PuzzleResult _attempt(Rng rng, Dict dict, Opts opts) {
       TOTAL_ATTEMPTS.incrementAndGet();
       var swe  = new SwedishGenerator(rng, new int[STACK_SIZE], Clues.createEmpty());
-      var mask = swe.generateMask(opts.clueSize, opts.pop, opts.gens, opts.offspring);
+      var mask = swe.generateMask(opts.clueSize, opts.pop, opts.gens, Math.max(opts.offspring, (int) Math.floor(1.5 * opts.pop)));
       
       var filled = fillMask(rng, extractSlots(mask, dict.index()), mask.toGrid());