Sunday Times Teaser 2761 (2015-08-23)

puzzle.txt

cards numbered 1-9
laid out in ascending order

cards redealt, no card in original place

last 6 digits form the square of the first three digits

solve.sh

#!/bin/bash

for i in {316..999}; do
	echo $i$((i*i))
done \
	| grep -v "\(.\).*\1" \
	| grep -v -e "^1" -e "^.2" -e "^..3" -e "^...4" -e "^....5" -e "^.....6" -e "^......7" -e "^.......8" -e "^........9" \
	| cut -b-3