this bot will beat the game at arin.ga:44444

1-2-3.sh

#!/bin/bash
# this bot will put your name in izabera's 1-2-3 ranking
# https://github.com/izabera/1-2-3
# run it with socat like:
# socat TCP4:arin.ga:44444 EXEC:/full/path/to/record.sh,fdin=3,fdout=3,sigint
read -n4 line <&3
echo "a">&3
ans=0
score=0 ct=0
trap errar INT
function errar(){ # press ctrl-c to send a wrong answer whenever you want
	echo "pontuacao atual: $score" >&2
	echo "palpites: $ct" >&2
	erro=1
}
while read line; do
#	echo "$line" >&2					# uncomment to see progress
	if grep -qoE "([0-9] [-+=] ){2,}\?" <<< "$line"; then 
		line="${line//=*/}"
		ans=$((${line}))
		(( $erro )) && echo -n "0" >&3 || echo -n "${ans}" >&3
		echo "$((++ct)) $score" >palpites.log	
	elif grep -qoE "score: [0-9]+" <<< "$line"; then
		score=$(grep -Eo ": [0-9]+" <<< "$line")
		score="${score/: /}"
	elif fgrep -q "new high score!" <<< "$line"; then
		sleep 3;
		for i in a t c a s a n o v a a t c a s a n o v a ; do
			echo -n "$i" >&3
		done
		echo "NEW HIGH SCORE: $score atcasanova" >>logteste.log
	fi
done <&3