Gur guvat zragvbarq vf npprffrq gur hfhny vagrearg jnl bs npprffvat guvatf, qba'g bireguvax vg. V fghzoyrq vagb vg ol nppvqrag juvyr ybbxvat vg hc. V tbg gb n cbvag jurer V unir cerggl zhpu fbyirq gur chmmyr naq tbggra n erfhyg gung V thrff fubhyq or gur nafjre, ohg vg vf abg npprcgrq...

Finally figured it out myself, but the fault was not in my logic.

Tip 1 Vs lbh unir svtherq bhg jub gur punenpgre vf, lbh ner ba evtug genpx.

Tip 2 Vs lbh ner hfvat Sversbk, lbh zvtug jnag gb gel hfvat pyrna Puebzr vafgnyy sbe guvf bar.

Tip 3 Hfr gur jro qrirybcre gbbyf, uvagrq ol "Vafcrpg" ryrzrag. V tbg guvf vzzrqvngryyl, ohg sbe fbzr ernfba V qvqa'g svaq jung V arrqrq hfvat Sversbk naq jnf fghpx sbe qnlf.

you have to do something like the guy on a mug