I found an old period 160 glider duplicator reaction in my files which used period 8 reflectors to support the reaction in a loop. Unfortunately, the duplicated gliders are on a close path to the others, and so usually have to be deleted.

I upgraded the reaction to use snarks instead of the reflectors, and this is shown here. Also, for a bit of added interest, I used some of the extra gliders for kickbacks to make a period 640 glider relay.

The separation of the two halfs can be adjusted by multiples of 40 cells to change the size and period of the relay.

`#C Period 640 glider relay built using two period 160 glider duplication`

#C reactions and snarks. This is based on a previous version which

#C used period 8 reflectors instead.

#C David I. Bell, 30 November 2017

x = 354, y = 308, rule = LifeHistory

183.2A3.2A$183.2A2.A.3A$187.A4.A$183.4A.2A2.A$183.A2.A.A.A.2A$185.BAB

ABA.A$186.B2ABA.A$187.2B.BA$186.3B$177.2A6.4B$178.A6.B2A3B$178.A.AB3.

B2A3B$179.2AB.10B13.A$181.13B10.3A$181.13BA8.A$181.14BA7.2A$183.8B2.

3AB3.5B$183.6B5.4B2.3B$182.9B4.9B7.2A.2A$181.4B4.2A5.8B8.A.2A$180.4B

5.A7.10B3.B.A$179.4B7.3A4.7B2A2B.B3A$169.A8.4B10.A4.7B2A3BAB2.2A$167.

5A5.4B5.2A9.12B4A2.A$166.A5.A4.4B5.A8.2AB.7B3.2B.A.2A$166.A2.3AB2.7B.

BA.A7.A.AB.7B2.B3A2.A$165.2A.A.2B3.7B.B2A8.A5.4B4.A5.A$165.A2.4A12B9.

2A5.4B5.5A$166.2A2.BA3B2A7B15.4B8.A$168.3AB.2B2A7B14.4B$168.A.B3.10B

13.4B$165.2A.A8.8B11.4B$165.2A.2A7.9B9.4B$178.3B2.4B7.4B$176.5B3.4B5.

4B$176.2A7.4B3.4B$177.A8.4B.4B$174.3A10.7B$174.A13.5B$188.5B$187.7B$

186.4B.4B$185.4B3.4B125.2A3.2A$184.4B5.4B124.2A2.A.3A$183.4B7.4B127.A

4.A$182.4B9.B3A122.4A.2A2.A$181.4B11.A3B8.A112.A2.A.A.A.2A$180.4B6.2A

5.A3B5.5A112.BABABA.A$179.4B8.A5.4B4.A5.A112.B2ABA.A$178.4B9.A.AB.7B

2.B3A2.A113.2B.BA$177.4B11.2AB.7B3.2B.A.2A111.3B$176.4B14.12B4A2.A

102.2A6.4B$175.4B15.7B2A3BAB2.2A104.A6.B2A3B$174.A3B16.7B2A2B.B3A106.

A.AB3.B2A3B$173.A3B17.10B3.B.A107.2AB.10B13.A$172.B3A17.8B8.A.2A106.

13B10.3A$171.4B17.9B7.2A.2A106.13BA8.A$170.4B17.4B2.3B119.14BA7.2A$

169.4B17.4B3.5B119.8B2.3AB3.5B$168.4B17.4B7.2A119.6B5.4B2.3B$167.4B

17.4B8.A119.9B4.9B7.2A.2A$166.4B17.4B10.3A115.4B4.2A5.8B8.A.2A$165.4B

17.4B13.A114.4B5.A7.10B3.B.A$164.4B17.4B128.4B7.3A4.7B2A2B.B3A$163.4B

17.4B119.A8.4B10.A4.7B2A3BAB2.2A$162.4B17.4B118.5A5.4B5.2A9.12B4A2.A$

161.4B17.4B118.A5.A4.4B5.A8.2AB.7B3.2B.A.2A$160.4B17.4B119.A2.3AB2.7B

.BA.A7.A.AB.7B2.B3A2.A$159.4B17.4B119.2A.A.2B3.7B.B2A8.A5.4B4.A5.A$

158.4B17.4B120.A2.4A12B9.2A5.4B5.5A$157.4B17.4B122.2A2.BA3B2A7B15.4B

8.A$156.4B17.4B125.3AB.2B2A7B14.4B$155.4B17.4B126.A.B3.10B13.4B$154.

4B17.4B124.2A.A8.8B11.4B$153.4B17.4B125.2A.2A7.9B9.4B$152.4B17.4B139.

3B2.4B7.4B$151.4B17.4B138.5B3.4B5.4B$150.4B17.4B139.2A7.4B3.4B$149.4B

17.4B141.A8.4B.4B$148.4B17.4B139.3A10.7B$147.4B17.4B140.A13.5B$146.4B

17.4B155.5B$145.4B17.4B155.7B$144.4B17.4B155.4B.4B$143.4B17.3AB155.4B

3.4B$142.4B11.2A4.3BA155.4B5.4B$141.4B12.A4.3BA155.4B7.4B$140.4B10.BA

.A3.4B155.4B9.B3A$139.4B8.B.BA.A3.4B155.4B11.A3B8.A$138.4B8.2A3BA3.4B

155.4B6.2A5.A3B5.5A$137.4B9.2AB.3B.4B155.4B8.A5.4B4.A5.A$136.4B11.B3.

6B155.4B9.A.AB.7B2.B3A2.A$135.4B15.6B155.4B11.2AB.7B3.2B.A.2A$134.A3B

15.6B155.4B14.12B4A2.A$133.A3B15.6B155.4B15.7B2A3BAB2.2A$132.B3A15.6B

155.A3B16.7B2A2B.B3A$131.4B15.6B155.A3B17.10B3.B.A$130.4B15.6B155.B3A

17.8B8.A.2A$129.4B15.6B155.4B17.9B7.2A.2A$128.4B15.6B155.4B17.4B2.3B$

127.4B15.2A4B155.4B17.4B3.5B$126.4B15.2B2A2B155.4B17.4B7.2A$125.4B15.

2BA3B155.4B17.4B8.A$124.4B15.6B155.4B17.4B10.3A$123.4B15.6B155.4B17.

4B13.A$122.4B15.6B155.4B17.4B$121.4B15.6B155.4B17.4B$120.4B15.6B155.

4B17.4B$119.4B15.6B155.4B17.4B$118.4B15.6B155.4B17.4B$117.4B15.6B155.

4B17.4B$116.4B15.6B155.4B17.4B$115.4B15.6B155.4B17.4B$114.4B15.6B155.

4B17.4B$113.4B15.8B153.4B17.4B$112.4B15.10B151.4B17.4B$111.4B15.6B.5B

149.4B17.4B$110.4B15.6B3.5B147.4B17.4B$109.4B15.6B5.5B145.4B17.4B$

108.4B15.6B7.5B143.4B17.4B$107.4B15.6B9.5B141.4B17.4B$106.4B15.6B11.

5B139.4B17.4B$105.4B15.6B13.5B137.4B17.4B$104.4B15.6B15.5B135.4B17.4B

$103.4B15.2B3AB17.5B133.4B17.4B$102.4B15.5BA19.5B131.4B17.4B$101.4B

15.5BA21.5B129.4B17.3AB$100.4B15.6B23.5B127.4B17.3BA$99.4B15.6B25.5B

125.4B17.3BA$98.4B15.6B27.5B123.4B17.4B$90.2A5.4B15.6B29.5B121.4B17.

4B$89.B2AB3.4B15.6B31.5B119.4B17.4B$90.2B3.4B15.6B33.5B117.4B17.4B$

89.2B3.A3B10.A4.6B35.5B115.4B17.4B$88.BA2B.A3B9.3A3.6B37.5B113.4B17.

4B$88.A.A2B3A9.A5.6B39.5B111.A3B17.4B$89.A.4B.2B7.2A3.6B41.5B109.A3B

17.4B$86.3A4.B.3B4.5B2.6B43.5B107.B3A17.4B$86.A6.12B3.6B45.5B105.4B

17.4B$90.23B47.5B103.4B17.4B$89.17B2A4B49.5B101.4B17.4B$88.19B2A2B51.

5B99.4B17.4B$87.4B3A12BA3B53.5B97.4B17.4B$86.4BA3BA14B55.5B95.4B17.4B

$85.4BA5BA12B57.2B2AB93.4B17.4B$84.6BA3BA12B59.BABAB91.4B17.4B$83.8B

3A12B61.A4B89.4B17.4B$82.6B3.12B6.A58.5B87.4B11.2A4.4B$81.6B2.5B4.3B.

B4.3A59.5B85.4B12.A4.4B$80.6B3.2A7.2B.4B.A63.5B83.4B10.BA.A3.4B$79.6B

5.A9.5BA.A63.5B81.4B8.B.BA.A3.4B$78.6B3.3A9.4B.2BAB64.5B79.4B8.2A3BA

3.4B$77.6B4.A10.4B3.2B66.5B70.2A5.4B9.2AB.3B.4B$76.6B15.4B3.2B68.5B

68.B2AB3.4B11.B3.6B$75.6B3.B11.4B3.B2AB68.5B68.2B3.4B15.6B$74.4B.3B.B

2A9.4B5.2A70.5B66.2B3.4B10.A4.6B$73.4B3.A3B2A8.4B79.5B64.BA2B.4B9.3A

3.6B$72.4B3.A.AB.B8.4B81.5B63.A.A5B9.A5.6B$71.4B3.A.AB10.4B83.5B63.A.

4B.2B7.2A3.6B$70.4B4.A12.4B85.5B59.3A4.B.3B4.5B2.6B$69.4B4.2A11.4B87.

5B58.A6.12B3.6B$68.4B17.4B89.5B61.12B3A8B$67.4B17.4B91.5B59.12BA3BA6B

$66.4B17.4B93.5B57.12BA5BA4B$65.4B17.4B95.5B55.14BA3BA4B$64.4B17.4B

97.5B53.3BA12B3A4B$63.4B17.4B99.5B51.2B2A19B$62.4B17.4B101.5B49.4B2A

17B$61.4B17.4B103.5B47.23B$60.4B17.4B105.5B45.6B3.12B6.A$59.4B17.3AB

107.5B43.6B2.5B4.3B.B4.3A$58.4B17.3BA109.5B41.6B3.2A7.2B.4B.A$57.4B

17.3BA111.5B39.6B5.A9.3A2BA.A$56.4B17.4B113.5B37.6B3.3A9.3BA.2BAB$55.

4B17.4B115.5B35.6B4.A10.3BA3.2B$54.4B17.4B117.5B33.6B15.4B3.2B$53.4B

17.4B119.5B31.6B15.4B3.B2AB$52.4B17.4B121.5B29.6B15.4B5.2A$51.4B17.4B

123.5B27.6B15.4B$50.A3B17.4B125.5B25.6B15.4B$49.A3B17.4B127.5B23.6B

15.4B$48.B3A17.4B129.5B21.A5B15.4B$47.4B17.4B131.5B19.A5B15.4B$46.4B

17.4B133.5B17.B3A2B15.4B$45.4B17.4B135.5B15.6B15.4B$44.4B17.4B137.5B

13.6B15.4B$43.4B17.4B139.5B11.6B15.4B$42.4B17.4B141.5B9.6B15.4B$41.4B

17.4B143.5B7.6B15.4B$40.4B17.4B145.5B5.6B15.4B$39.4B17.4B147.5B3.6B

15.4B$38.4B17.4B149.5B.6B15.4B$37.4B17.4B151.10B15.4B$36.4B17.4B153.

8B15.4B$35.4B17.4B155.6B15.4B$34.4B17.4B155.6B15.4B$33.4B17.4B155.6B

15.4B$32.4B17.4B155.6B15.4B$31.4B17.4B155.6B15.4B$30.4B17.4B155.6B15.

4B$29.4B17.4B155.6B15.4B$28.4B17.4B155.6B15.4B$27.4B17.4B155.6B15.4B$

12.A13.4B17.4B155.6B15.4B$12.3A10.4B17.4B155.6B15.4B$15.A8.4B17.4B

155.3BA2B15.4B$14.2A7.4B17.4B155.2B2A2B15.4B$14.5B3.4B17.4B155.4B2A

15.4B$16.3B2.4B17.4B155.6B15.4B$3.2A.2A7.9B17.4B155.6B15.4B$3.2A.A8.

8B17.3AB155.6B15.4B$6.A.B3.10B17.3BA155.6B15.4B$6.3AB.2B2A7B16.3BA

155.6B15.3AB$4.2A2.BA3B2A7B15.4B155.6B15.3BA$3.A2.4A12B14.4B155.6B15.

3BA$3.2A.A.2B3.7B.B2A11.4B155.6B15.4B$4.A2.3AB2.7B.BA.A9.4B155.6B3.B

11.4B$4.A5.A4.4B5.A8.4B155.4B.3B.B2A9.4B$5.5A5.3BA5.2A6.4B155.4B3.A3B

2A8.4B$7.A8.3BA11.4B155.4B3.A.AB.B8.4B$17.3AB9.4B155.4B3.A.AB10.4B$

18.4B7.4B155.A3B4.A12.4B$19.4B5.4B155.A3B4.2A11.4B$20.4B3.4B155.B3A

17.4B$21.4B.4B155.4B17.4B$22.7B155.4B17.4B$23.5B155.4B17.4B$23.5B13.A

140.4B17.4B$22.7B10.3A139.4B17.4B$21.4B.4B8.A141.4B17.4B$20.4B3.4B7.

2A139.4B17.4B$19.4B5.4B3.5B138.4B17.4B$18.4B7.4B2.3B139.4B17.4B$17.4B

9.9B7.2A.2A125.4B17.4B$16.4B11.8B8.A.2A124.4B17.4B$15.4B13.10B3.B.A

126.4B17.4B$14.4B14.7B2A2B.B3A125.4B17.4B$4.A8.4B15.7B2A3BAB2.2A122.

4B17.4B$2.5A5.4B5.2A9.12B4A2.A120.4B17.4B$.A5.A4.4B5.A8.2AB.7B3.2B.A.

2A119.4B17.4B$.A2.3AB2.7B.BA.A7.A.AB.7B2.B3A2.A119.4B17.4B$2A.A.2B3.

7B.B2A8.A5.4B4.A5.A118.4B17.4B$A2.4A12B9.2A5.4B5.5A118.4B17.4B$.2A2.B

A3B2A7B4.A10.4B8.A119.4B17.4B$3.3AB.2B2A7B4.3A7.4B128.4B17.4B$3.A.B3.

10B7.A5.4B114.A13.4B17.4B$2A.A8.8B5.2A4.4B115.3A10.4B17.4B$2A.2A7.9B

4.9B119.A8.4B17.4B$13.3B2.4B5.6B119.2A7.4B17.4B$11.5B3.B3A2.8B119.5B

3.4B17.4B$11.2A7.A14B119.3B2.4B17.4B$12.A8.A13B106.2A.2A7.9B17.4B$9.

3A10.13B106.2A.A8.8B17.3AB$9.A13.10B.B2A107.A.B3.10B17.3BA$25.3B2AB3.

BA.A106.3AB.2B2A7B16.3BA$25.3B2AB6.A104.2A2.BA3B2A7B15.4B$27.4B6.2A

102.A2.4A12B14.4B$27.3B111.2A.A.2B3.7B.B2A11.4B$24.AB.2B113.A2.3AB2.

7B.BA.A9.4B$23.A.AB2AB112.A5.A4.4B5.A8.4B$23.A.ABABAB112.5A5.3BA5.2A

6.4B$22.2A.A.A.A2.A112.A8.3BA11.4B$23.A2.2A.4A122.3AB9.4B$23.A4.A127.

4B7.4B$24.3A.A2.2A124.4B5.4B$26.2A3.2A125.4B3.4B$159.4B.4B$160.7B$

161.5B$161.5B13.A$160.7B10.3A$159.4B.4B8.A$158.4B3.4B7.2A$157.4B5.4B

3.5B$156.4B7.4B2.3B$155.4B9.9B7.2A.2A$154.4B11.8B8.A.2A$153.4B13.10B

3.B.A$152.4B14.7B2A2B.B3A$142.A8.4B15.7B2A3BAB2.2A$140.5A5.4B5.2A9.

12B4A2.A$139.A5.A4.4B5.A8.2AB.7B3.2B.A.2A$139.A2.3AB2.7B.BA.A7.A.AB.

7B2.B3A2.A$138.2A.A.2B3.7B.B2A8.A5.4B4.A5.A$138.A2.4A12B9.2A5.4B5.5A$

139.2A2.BA3B2A7B4.A10.4B8.A$141.3AB.2B2A7B4.3A7.4B$141.A.B3.10B7.A5.

4B$138.2A.A8.8B5.2A4.4B$138.2A.2A7.9B4.9B$151.3B2.4B5.6B$149.5B3.B3A

2.8B$149.2A7.A14B$150.A8.A13B$147.3A10.13B$147.A13.10B.B2A$163.3B2AB

3.BA.A$163.3B2AB6.A$165.4B6.2A$165.3B$162.AB.2B$161.A.AB2AB$161.A.ABA

BAB$160.2A.A.A.A2.A$161.A2.2A.4A$161.A4.A$162.3A.A2.2A$164.2A3.2A!

Previously, I managed to build a glider gun from the glider duplicating reaction by adding a pi heptomino glider reflecting reaction to extract the inconvenient extra gliders. This is shown below, and also shows how the p8 reflectors were used.

`#C Period 160 glider gun built using period 160 glider duplication`

#C reactions and a pi based glider reflection reaction.

#C David I. Bell, June 2004

x = 191, y = 189, rule = LifeHistory

179.2B$178.BAB$178.3A2B$177.AB3AB$167.A8.A.2BAB$167.3A4.BA2B.A$170.A

2.B3ABA$169.2A2.2B3A$169.4B2.BAB$171.BAB.2B$170.BABA.B$167.2A.B2A2B$

26.2B139.2A7B$25.BAB140.7B$25.ABA2B3.BA133.7B3.2A5.2A$24.A3BAB3.2AB

133.6B.2B2A5.A$14.A8.A.2BAB2.BAB2A111.2A19.11B3.BA.A$14.3A4.BA2B.A4.

3A2BA110.3B17.4B2.8B.B2A$17.A2.BA3BA6.BABA.A8.A98.A3BA16.4B4.5B2A2B$

16.2A2.2BABA9.A.ABAB4.3A98.A4BA14.4B5.5BABAB$2.BA12.4B2.BAB10.A2B3A2.

A102.BABA.A12.4B5.7BAB.2B$2.2AB13.BAB.2B12.2ABAB2.2A103.A.ABAB9.4B5.

8B3.3B$BAB2A12.BABA.B13.B2A2.4B104.A4BA7.4B5.4B3.B.3B2AB$3A2BA8.2A.B

2A2B15.AB.BAB107.A3BAB.B3.A3B5.4B7.2B2ABA$.BABA.A7.2A7B15.B.ABAB106.

3B3.5B2AB5.4B9.4B.A$3.A.ABAB6.7B17.2B2AB.2A104.2A.BA4BABA5.4B12.A.4B$

4.A2B3A5.7B16.7B2A106.BABA5B5.4B14.AB2A2B$5.2ABA2B.B3.6B17.7B107.2B2A

5B4.4B16.B2A2B$5.B2A3.12B16.7B105.2AB.8B2.4B17.3B$6.AB.BA7B2.4B15.6B

105.A.AB3.11B19.2B$8.BABA5B4.4B13.8B104.A5.2A2B.6B$8.2B2A5B5.4B11.4B

2.4B102.2A5.2A4.4B19.2B$6.2AB.8B5.4B9.4B4.4B113.6B17.BAB$5.A.AB3.7B5.

4B7.4B6.4B111.8B16.3A2B$5.A5.2A2B.4B5.4B5.4B8.4B109.4B2.4B14.AB3AB$4.

2A5.2A4.4B5.4B3.4B10.4B107.4B4.4B12.A.2BAB$18.4B5.4B.4B12.4B105.4B6.

4B9.BA2B.A$19.4B5.7B14.4B103.4B8.4B7.B3ABA$20.4B5.5B16.4B101.4B10.4B

3.B.3B3A$21.3BA4.5B17.4B99.4B12.8B3.BAB$22.B2AB2.7B17.4B97.4B14.7BAB.

2B$23.ABA5B.4B17.4B95.4B16.5BABAB$24.6B3.4B12.A4.4B93.BA2B17.5B2A2B$

24.7B3.4B11.3A3.4B91.2A2B17.8B.B2A$24.7B4.4B13.A.6B89.2B2A17.7B3.BA.A

$23.7B2A4.4B11.A.A7B87.4B17.4B.2B2A5.A$24.2B2AB.2A5.4B10.BA2B.6B85.4B

17.4B4.2A5.2A$23.B.ABAB9.4B10.2B3.6B83.4B17.4B$22.2B.BAB11.4B10.2B3.

6B81.4B17.4B$21.3B2.4B10.4B8.B2AB3.4B2A79.4B11.2A4.4B$21.B2A2B2.2A11.

2BAB8.2A5.2B2A2B77.4B12.A4.4B$20.AB2A2B2.A13.2B2A15.3BA2B4.2A69.4B10.

BA.A3.4B$19.A.4B4.3A11.2A2B10.2A3.6B4.A68.4B8.B.BA.A3.4B$17.4B.A8.A

12.4B10.A4.6B3.A.AB64.4B8.2A3BA3.4B$16.2B2ABA23.4B9.A.AB.7B3.A.AB.B

53.2A5.4B9.2AB.3B.4B$16.2B2AB25.4B9.2AB.8B3.A3B2A44.2B5.B2AB3.4B11.B

3.6B$18.3B26.4B10.10B2.3B.B2A43.BAB6.2B3.4B15.6B$18.2B28.4B9.10B2.2B

3.B44.3A2B3.2B3.4B10.A4.6B$49.4B8.8BA6B46.AB3AB2.BA2B.4B9.3A3.6B$50.

4B8.6B3AB.4B19.2B14.A8.A.2BAB3.A.A5B9.A5.6B$51.4B7.5BA3BAB.4B17.3A14.

3A4.BA2B.A6.A.4B.2B7.2A3.6B$52.4B6.2B2AB2AB3AB.4B16.3BAB15.A2.B3ABA4.

3A4.B.3B4.5B2.6B$53.4B5.BA3BA2B2A2B2.4B14.A3BAB14.2A2.2B3A5.A6.12B3.

6B$54.4B2.4BABA3BAB5.4B12.A.A2BA15.4B2.BAB9.19B2A2B$55.4B.9BA2B6.4B9.

A2BA.A19.BAB.2B9.7BAB2ABA8B2A$56.4B.5B3A3B7.4B7.BA3BA19.BABA.B9.7BA2B

A10BAB$57.4B.4B2A4B8.4B3.B.2BA3B17.2A.B2A2B9.7B3A13B$58.8BA6B8.8B3.3A

17.2A7B7.9B2A2BA9B$55.B3.2B2.10B9.7BAB.2B19.7B7.11B2ABABA6B$54.2AB.3B

2.10B10.5BABAB21.7B6.13B2AB2A5B$54.2A3BA3.8B.B2A8.5B2A2B22.6B5.15B3A

5B$55.B.BA.A3.7B.BA.A6.8B.B2A19.8B3.6B3.8BA3B6.A$58.BA.A3.6B4.A5.7B3.

BA.A17.4B2.4B.2BA3B2.5B4.3B.B4.3A$61.A4.6B3.2A3.4B.2B2A5.A16.4B4.6BAB

A3.2A7.2B.4B.A$61.2A4.6B6.4B4.2A5.2A14.4B6.5B2A5.A9.5BA.A$68.6B4.4B

27.4B7.6B3.3A9.4B.2BAB$69.5BA2.4B27.A3B7.7B3.A10.4B3.2B$70.2BABA5B27.

B2AB7.9B12.4B3.2B$71.2B2A4B27.BABA7.6B.4B10.4B3.B2AB$72.6B27.4B7.6B3.

4B8.4B5.2A$73.6B25.4B7.6B5.4B6.4B$72.8B23.4B7.6B7.4B4.4B$71.10B21.4B

7.6B9.4B2.4B$70.4B2.6B19.4B7.6B11.8B$69.4B4.6B17.4B7.6B13.6B$68.4B6.

6B15.4B7.6B13.7B$67.4B8.6B13.4B7.6B14.7B$66.4B10.6B11.4B7.6B14.2A7B$

65.4B12.6B9.4B7.BA4B15.2A.B2A2B$64.4B14.6B7.4B7.2A4B19.BABA.B$63.4B

16.6B5.4B7.2B2A2B21.BAB.2B$62.4B18.6B3.4B7.6B20.4B2.BAB$61.4B20.6B.4B

7.6B21.2A2.2BABA$60.3AB22.9B7.6B23.A2.BA3BA$59.3BA24.2BA4B7.6B21.3A4.

BA2B.A$58.3BA26.2B2A2B6.6B22.A8.A.2BAB$57.4B27.B2A4B4.6B33.A3BAB$56.

4B27.9B2.6B35.ABA2B$55.4B27.4B.12B36.BAB$54.4B27.4B3.10B.3B34.2B$53.

4B27.4B5.14B$52.4B27.4B4.2B.13B.2B$51.4B27.4B4.21B$50.4B27.4B3.25B$

49.4B27.4B4.25B$48.4B27.4B4.27B$26.2B19.4B27.4B5.3BABA15BABA3B$26.3B

17.4B6.2A19.4B5.4B2A17B2A4B$24.2B3A16.4B7.3B17.4B7.4BA17BA4B$24.2B3AB

14.4B6.A3BA16.4B7.7B2.11B2.6B$25.B3A.B12.4B7.A4BA14.4B7.5B.B3.12B2.B.

4B$27.B.3AB9.4B9.BABA.A12.4B7.5B7.B.5B.4B4.4B$28.B3A2B7.4B12.A.ABAB9.

4B7.5B11.3B3.4B4.4B4.2A5.2A$29.3A3B.B3.4B14.A4BA7.4B7.5B11.5B3.4B4.4B

.2B2A5.A$29.3B3.8B16.A3BAB.B3.4B7.5B13.3B5.4B4.7B3.BA.A$30.2B.BA7B17.

3B3.3A5B7.5B13.5B5.4B4.8B.B2A$32.BABA5B19.2A.B5A3B7.5B14.5A6.4B4.5B2A

2B$32.2B2A5B21.BA2BAB2AB7.6B13.A5BA6.4B3.5BABAB$30.2AB.8B20.2B5A2B6.

6B12.3A.3B.3A5.4B.7BAB.BA$29.A.AB3.7B17.2AB.B2A5B4.4B3.3B8.A3.5B3.A5.

11B3.2AB$29.A5.2A2B.4B15.A.AB3.BA5B2.4B4.3B2A2.A3.A.3A.A.4A7.5B3.B.2B

AB2A$28.2A5.2A4.4B14.A5.2A2B.8B4.2A2B2A3BA3.A3.3A11.5B6.3A2BA$42.4B

12.2A5.2A4.6B5.2A7BA5.A.B.B.2A.A5.7B6.BABA.A$43.4B24.7B5.B2.B4A5.2A.A

BA.A.2A4.4B.4B7.A.ABAB$44.4B23.7B10.3B6.A.A2.A7.4B3.4B7.A2B3A$45.4B

21.7B2A18.A2.2A7.4B5.4B7.2ABAB$46.4B21.2B2AB.2A17.2A10.4B7.4B6.B2A$

47.4B19.B.ABAB31.4B9.4B6.AB$48.4B17.AB.BAB31.4B11.4B$49.4B15.B2A2.4B

28.4B13.4B$50.4B14.2ABAB2.2A27.4B15.4B$51.4B12.A2B3A2.A27.4B17.4B$52.

3BA10.A.ABAB4.3A23.4B19.4B$53.B2AB7.BABA.A8.A22.4B21.4B4.2A5.2A$54.AB

AB5.3A2BA31.4B23.2BAB.2B2A5.A$55.4B4.BAB2A31.4B25.2B2A3B3.BA.A$56.4B

5.2AB30.4B27.2A6B.B2A$57.4B4.BA30.4B29.5B2A2B$58.4B34.4B30.5BABAB$59.

4B32.4B30.7BAB.2B$60.4B30.4B30.8B3.BAB$61.4B28.4B30.4B3.B.3B3A$62.4B

26.4B30.4B7.B3ABA$63.4B24.4B30.4B9.BA2B.A$64.4B22.4B30.4B12.A.2BAB$

65.4B20.A3B30.4B14.AB3AB$66.4B18.A3B30.4B16.3A2B$67.4B16.B3A30.4B17.B

AB$68.4B14.4B30.4B19.2B$69.4B12.4B30.4B$70.4B10.4B30.4B$71.4B8.4B30.

4B$72.4B6.4B30.4B$73.4B4.4B30.4B$74.4B2.4B30.4B$75.8B30.4B$76.6B30.4B

$77.4B30.4B$76.6B28.4B$75.8B26.4B$74.4B2.4B24.4B$73.4B4.4B22.4B$72.4B

6.4B20.4B$71.4B8.4B18.4B$70.4B10.4B16.4B$69.4B12.4B14.4B$68.4B14.4B

12.4B$67.4B16.4B10.4B$66.4B18.4B8.4B$65.4B20.4B6.4B$64.4B22.4B4.4B$

63.4B24.4B2.4B$62.4B26.3BA4B$61.4B28.B4AB$60.4B29.BAB3AB$59.4B30.4B3A

$58.4B30.6BABA$57.4B32.A4B.2A$56.4B32.B.B2AB$55.4B32.2B.B2A$54.4B32.

3B2.4B$53.4B33.B2A2B2.2A$52.4B33.AB2A2B2.A$51.4B33.A.4B4.3A$50.4B32.

4B.A8.A$49.A3B32.2B2ABA$48.A3B33.2B2AB$48.3A36.3B$87.2B!

To make a modern version of this without any foreign oscillators, snarks can probably be used to eliminate all the p8 reflectors, and a catalyst can eliminate the period 5 sparker, but I don't see offhand

how to avoid the p8 blocker.

BCNU,

-dbell