diff --git a/include/Heuristic.hpp b/include/Heuristic.hpp
index fbd21cb..a007d36 100644
--- a/include/Heuristic.hpp
+++ b/include/Heuristic.hpp
@@ -33,6 +33,7 @@ class Heuristic
  public:
   void set(int index, int value) { coeff[index] = value; };
   int evaluate(bup &bitboard);
+  std::string coefficientsToString();
 
   // Needed public for variable depth search
   int jumpeablePieces() const;
diff --git a/src/GeneticSimulation.cpp b/src/GeneticSimulation.cpp
index 8452930..3c1e5ce 100644
--- a/src/GeneticSimulation.cpp
+++ b/src/GeneticSimulation.cpp
@@ -74,6 +74,15 @@ void GeneticSimulation::simulate(){
   s << "White Wins(after Tie): " << cntTieBlack << std::endl;
   s << "Black Wins(after Tie): " << cntTieWhite << std::endl;
   s << "Ties: \t\t" << cntTies << std::endl;
+  int n = population.size();
+  for (int i = 0; i < n; ++i) {
+    Specimen temp = population.front();
+    s << "+++++++++++++++++++++++++++++++" << std::endl;
+    s << "START: " << std::endl;
+    s << temp.getStartHeuristics().coefficientsToString();
+    s << "END: " << std::endl;
+    s << temp.getEndHeuristics().coefficientsToString();
+  }
   }
   s.close();
 
diff --git a/src/Heuristic.cpp b/src/Heuristic.cpp
index 4bc150b..811df19 100644
--- a/src/Heuristic.cpp
+++ b/src/Heuristic.cpp
@@ -134,6 +134,21 @@ int Heuristic::moveableKings() const
   return (isBlacksTurn ? 1 : -1) * count(accumK);
 }
 
+std::string Heuristic::coefficientsToString()
+{
+  return "pawn count: " + std::to_string(coeff[0]) + "\n" +
+    "king count: " + std::to_string(coeff[1]) + "\n" +
+    "safe pawns: " + std::to_string(coeff[2]) + "\n" +
+    "safe kings: " + std::to_string(coeff[3]) + "\n" +
+    "pawn promotion distance: " + std::to_string(coeff[4]) + "\n" +
+    "defender count: " + std::to_string(coeff[5]) + "\n" +
+    "attacker count: " + std::to_string(coeff[6]) + "\n" +
+    "open promotion count: " + std::to_string(coeff[7]) + "\n" +
+    "moveable pawns: " + std::to_string(coeff[8]) + "\n" +
+    "moveable kings: " + std::to_string(coeff[9]) + "\n" +
+    "jumpeable pieces: " + std::to_string(coeff[10]) + "\n";
+}
+
 int Heuristic::jumpeablePieces() const
 {
   uint32_t accumP = 0;