diff --git a/ArduChess.ino b/ArduChess.ino
index dd48394..0d3a3b0 100644
--- a/ArduChess.ino
+++ b/ArduChess.ino
@@ -1,3 +1,5 @@
+#pragma GCC optimize ("-O3")
+
 #include <Arduino.h>
 
 #include "Board.h"
@@ -48,7 +50,7 @@ void setup() {
 
 	int elapsed = micros() - startTime;
 	Serial.print(elapsed);
-	Serial.println("microseconds for 5 moves");
+	Serial.println(F("microseconds for 5 moves"));
 
 
 }
diff --git a/Board.h b/Board.h
index b6041b0..741d8a6 100644
--- a/Board.h
+++ b/Board.h
@@ -256,4 +256,5 @@ Unmove Board::read_unmove() {
 	}
 	return u;
 }
+
 #endif