diff --git a/include/chess/print.h b/include/chess/print.h
index 95e8d6f..90e9eca 100644
--- a/include/chess/print.h
+++ b/include/chess/print.h
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdint.h>
 
 #define fprintArray(file, printer, arr) \
 	do { \
@@ -23,3 +24,4 @@
 
 void printerll(FILE *file, long long num);
 void printerull(FILE *file, unsigned long long num);
+void printPieceMask(uint_least64_t mask);
diff --git a/lib/chess/print.c b/lib/chess/print.c
index 0db07b4..aa58923 100644
--- a/lib/chess/print.c
+++ b/lib/chess/print.c
@@ -1,4 +1,7 @@
 #include <stdio.h>
+#include <limits.h>
+#include <stdint.h>
+#include <chess/bitboard.h>
 
 void printerll(FILE *file, long long num) {
 	fprintf(file, "%lld", num);
@@ -7,3 +10,9 @@ void printerll(FILE *file, long long num) {
 void printerull(FILE *file, unsigned long long num) {
 	fprintf(file, "%lluu", num);
 }
+
+void printPieceMask(uint_least64_t mask) {
+	for(uint_least8_t i = 0; i < CHAR_BIT * sizeof mask; ++i) {
+		printf("%d", bitsetGet(mask, i);
+	}
+}