puzzles

BOYS AND GIRLS.—solution

There are a good many different solutions to this puzzle. Any contiguous pair, except 7-8, may be moved first, and after the first move there are variations. The following solution shows the position from the start right through each successive move to the end:—

.	.	1	2	3	4	5	6	7	8
4	3	1	2	.	.	5	6	7	8
4	3	1	2	7	6	5	.	.	8
4	3	1	2	7	.	.	5	6	8
4	.	.	2	7	1	3	5	6	8
4	8	6	2	7	1	3	5	.	.

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.	.	1	2	3	4	5	6	7	8
4	3	1	2	.	.	5	6	7	8
4	3	1	2	7	6	5	.	.	8
4	3	1	2	7	.	.	5	6	8
4	.	.	2	7	1	3	5	6	8
4	8	6	2	7	1	3	5	.	.

.	.	1	2	3	4	5	6	7	8
4	3	1	2	.	.	5	6	7	8
4	3	1	2	7	6	5	.	.	8
4	3	1	2	7	.	.	5	6	8
4	.	.	2	7	1	3	5	6	8
4	8	6	2	7	1	3	5	.	.

.	.	1	2	3	4	5	6	7	8
4	3	1	2	.	.	5	6	7	8
4	3	1	2	7	6	5	.	.	8
4	3	1	2	7	.	.	5	6	8
4	.	.	2	7	1	3	5	6	8
4	8	6	2	7	1	3	5	.	.