Restart update after identifying mine

main.c

@@ -70,6 +70,7 @@ int main(void)
 			break;
 		}
 
+	update:
 		for (y = 0; y < HEIGHT; ++y) {
 			for (x = 0; x < WIDTH; ++x) {
 				if (field[x][y] == UNKNOWN || field[x][y] == MINE)
@@ -80,8 +81,10 @@ int main(void)
 				if (unknowns == 0)
 					continue;
 
-				if (mines + unknowns == field[x][y])
+				if (mines + unknowns == field[x][y]) {
 					setadj(field, x, y, UNKNOWN, MINE);
+					goto update;
+				}
 
 				if (mines == field[x][y]) {
 					getadj(field, &x, &y, UNKNOWN);