#Life 1.05 #D Back-rake #D #D This is a simple combination of 3 glider rakes #D whose gliders are aligned to form MWSS traveling #D in the opposite direction. This is well-known. #D It is fun to collide the stream with random junk, #D partly because the source is rarely destroyed. #N #P 22 -22 ...* ....* *...* .**** . . . * .** ..* ..* .* . . ...* ....* *...* .**** #P 14 -22 .** **** **.** ..** #P 4 -6 ...* ....* *...* .**** #P 19 4 .**** *...* ....* ...* . . .* ..* ..* .** * . . . .**** *...* ....* ...* #P 11 18 ..** **.** **** .** #P 1 2 .**** *...* ....* ...* #P 30 24 ...**** ..*...* ......* .....* . . ..** .*..* .*..* **.** .** . . . ...**** ..*...* ......* .....* #P 24 24 ..** **.** **** .** #P 21 29 ..* .** * .***** ..**** .....* #P 15 39 ...* ....* *...* .**** #P -11 15 *** ..* .* #P -6 20 *** ..* .* #P -1 25 *** ..* .* #P 4 30 *** ..* .* #P 9 35 *** ..* .*