diff --git a/optimizer/box-eater.cpp b/optimizer/box-eater.cpp
index 40c8bb7..fd7392e 100644
--- a/optimizer/box-eater.cpp
+++ b/optimizer/box-eater.cpp
@@ -11,8 +11,10 @@ std::mt19937 rng(std::random_device{}());
 			__builtin_unreachable();	\
 	} while (false);					\
 
-const int species_limit = 8;
+const int species_limit = 16;
 const int population_limit = 10;
+const int protect_age = 30;
+const int stable_limit = 10;
 const int SPECIES_NAME_LEN = 4;
 
 struct Gene {
@@ -207,19 +209,19 @@ inline Species mutation(const Species &sc) {
 		res.tactic = tactic;
 		switch (tactic) {
 		case 0:
-			mutationRandomHole(res, sc.population[0], 60);
+			mutationRandomHole(res, sc.population[0], 80);
 			break;
 		case 1:
-			mutationRowCl(res, sc.population[0], 2);
+			mutationRowCl(res, sc.population[0], 3);
 			break;
 		case 2:
-			mutationColCl(res, sc.population[0], 2);
+			mutationColCl(res, sc.population[0], 3);
 			break;
 		case 3:
-			mutationSqrCl(res, sc.population[0], 3);
+			mutationSqrCl(res, sc.population[0], 5);
 			break;
 		case 4:
-			mutationSqrCl(res, sc.population[0], 5);
+			mutationSqrCl(res, sc.population[0], 7);
 			break;
 		}
 	} while (res.empty());
@@ -289,6 +291,20 @@ inline void inherit(Species &s) {
 		s.population.resize(population_limit);
 }
 
+namespace term {
+
+inline void clear()
+{
+	printf("\033[2J\033[0;0H");
+}
+
+inline void setColor(int color)
+{
+	printf("\033[%dm", color);
+}
+
+}
+
 int main() {
 	std::vector<Species> biosphere;
 	int history_best_w;
@@ -298,6 +314,7 @@ int main() {
 	std::fclose(frecord);
 
 	std::uniform_real_distribution<float> d01(0, 1);
+	int new_record_counter = 0;
 	for (int iter_id = 1; ; ++iter_id) {
 		int best_w = 0;
 
@@ -310,10 +327,10 @@ int main() {
 
 		std::vector<Species> Hnxt, Lnxt;
 		for (auto &s : biosphere) {
-			if (s.stable_age <= std::max(5, 15 * s.best_w / best_w)
+			if (s.stable_age < std::max(3, stable_limit * s.best_w / best_w)
 				|| s.best_w == best_w)
 			{
-				if (s.best_w < best_w || s.age <= 35)
+				if (s.best_w < best_w || s.age < protect_age)
 					Hnxt.push_back(std::move(s));
 				else
 					Lnxt.push_back(std::move(s));
@@ -343,20 +360,39 @@ int main() {
 		bool broke_record = best_w > history_best_w;
 		if (broke_record) {
 			history_best_w = best_w;
-			printf("New Record: %d!\n", best_w);
+			new_record_counter = 5;
 			std::FILE *f = fopen("best.txt", "w");
 			writeBiosphere(biosphere, best_w, f);
 			fclose(f);
 		}
 
 		if (true) {
+			term::clear();
 			printf("Iterated for %d times.\n", iter_id);
 			printf("Current Best=%d, History Best=%d, Species:\n", best_w, history_best_w);
 			for (auto &s : biosphere) {
-				printf(" - %s[%d]: best=%d stable=%d age=%d.\n", s.name
+				if (s.best_w == best_w)
+					term::setColor(35); // purple
+				else if (s.stable_age > 5)
+					term::setColor(31);	// red
+				else if (s.age <= 2)
+					term::setColor(34); // blue
+				else if (s.best_w >= best_w * 95 / 100)
+					term::setColor(32); // green
+
+				printf(" - %s[%d]: best=%d\tstable=%d\tage=%d.\n", s.name
 						, s.tactic, s.best_w, s.stable_age, s.age);
+				term::setColor(0);
 			}
 
+			if (new_record_counter > 0) {
+				term::setColor(32);
+				printf("New Record: %d\n", best_w);
+				term::setColor(0);
+				new_record_counter -= 1;
+			}
+			fflush(stdout);
+
 			std::FILE *f = fopen("current.txt", "w");
 			writeBiosphere(biosphere, best_w, f);
 			fclose(f);