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Challenge 1

Click for Hint Harry has left his Caesar cipher wheel lying around, so you can try to crack Challenge A with that. You will need to do a little bit more work to crack part B, though you might still find a wheel is useful! You can download a pdf to make one from the resources page.

Part A: BUG HUNTING

XQHHO, Y QC DEJ IKHU YV OEK MUHU SEFYUT YD JE JXU CUCE QREKJ HUSUDJ ULUDJI RKJ XUHU YI Q IKCCQHO.
JME TQOI QWE, QD EVV-TKJO WKYTQDSU EVVYSUH QBUHJUT CYIIYED SEDJHEB JE Q FEJUDJYQB FHERBUC MYJX JXU QFEBBE VBYWXJ. JXU FBQDDUT TUISUDJ JHQZUSJEHO QFFUQHUT JE RU HKDDYDW ED Q SEBBYIYED SEKHIU MYJX JXU IELYUJ BKDQH EHRYJUH BKDQ-VYVJUUD, QDT JXUHU MQI QJ BUQIJ JXU FEJUDJYQB VEH JXYI JE SQKIU QD QREHJ, EH, MEHIU QD QSSYTUDJ. REHCQD JUBUNUT CEISEM QDT QIAUT VEH Q LQHYQJYED EV EHRYJ QDT, FHUJJO CKSX JE ULUHOEDU’I IKHFHYIU, JXUO QWHUUT. QI Q HUIKBJ, JXU CYIIYED YI FHESUUTYDW QI FBQDDUT.
DE EDU YI HUQBBO IKHU MXO JXU IELYUJI QWHUUT JE XUBF, WYLUD JXQJ QREHJYDW YJ MEKBT XQLU FKJ UWW ED EKH VQSUI, RKJ JXQJ GKUIJYED YI EDU VEH JXU QDQBOIJI QJ BQDWBUO. Q CEHU YCCUTYQJU SEDSUHD VEH CU MQI MXO JXU FHERBUC XQTD’J RUUD IFEJJUT UQHBYUH. VHQDA JEBT CU JXQJ YV XU XQT ADEMD YD JYCU JXUD MU SEKBT XQLU FBQDDUT JXU EHRYJ QDT TUISUDJ JE QLEYT JXU YIIKU YD JXU VYHIJ FBQSU.
EV SEKHIU, CYIJQAUI TE XQFFUD, RKJ Y SXUSAUT MYJX JXU JUQC QDT EDU EV JXUC HUSQBBUT HKDDYDW IYCKBQJYEDI ED JXYI BQIJ CEDJX. IXU IQYT IXU XQT VBQWWUT JXU YIIKU VEH JXU QJJUDJYED EV VBYWXJ SEDJHEB, RKJ DE-EDU JXUHU HUCUCRUHUT IUUYDW YJ. Y QIAUT JE IUU JXU VYBU RKJ YJ BEEAI BYAU Q RKDSX EV WQHRQWU, MXYSX, Y QIIKCU, YI MXO DE-EDU HUIFEDTUT JE YJ. JXU SECFKJUH JUQC TED’J HUSEWDYIU JXU VEHCQJ QDT JXUO IKWWUIJUT JXQJ YJ MQI FHERQRBO ZKIJ Q RKW YD JXU HUFEHJ MHYJYDW IEVJMQHU, RKJ DE-EDU HUSQBBI IUUYDW QDOJXYDW BYAU YJ RUVEHU QDT YJ YI MEHHOYDW JXQJ JXYI SEKBT XQLU RUUD IE IUHYEKI. SEKBT OEK JQAU Q BEEA QJ JXU VYBU QDT BUJ CU ADEM MXQJ OEK IUU?
CUW.
FI MXUD OEK QHU FBQDDYDW JE WUJ RQSA XUHU VHEC XKDJILYBBU?

Part B: COLLISION COURSE

ZRZB
SEBZ: GENWRPGBEL GRNZ NCBYYB THVQNAPR
GB: THVQNAPR BSSVPRE
FHOWRPG: UNMNEQF VA YHANE BEOVG
ENQNE GENPXVAT UNF FUBJA GUNG GUR FBIVRG YHANE BEOVGRE YHAN SVSGRRA VF CBGRAGVNYYL BA N PBYYVFVBA PBHEFR JVGU GUR FPURQHYRQ QRFPRAG CNGU SBE RNTYR. GUR PHEERAG EVFX VF YBJ GB ZRQVHZ, OHG NPGVBA FUBHYQ OR GNXRA GB ZVAVZVFR BE RYVZVANGR VG.
GUR PHEERAG ENATR BS BCGVBAF VAPYHQRF:
ER-PNYPHYNGVBA BS NYGREANGVIR QRFPRAG CNGUF GB GUR CEVZNEL NAQ FRPBAQNEL YNAQVAT GNETRGF.
ER-QRFVTANGVBA BS YNAQVAT FVGRF JUVPU HFR QRFPRAG CNGUF JUVPU QB ABG VAGREFRPG GUR BEOVGRE CNGU.
NOBEG ZVFFVBA
GUR SVEFG NAQ FRPBAQ BCGVBAF PNEEL GUR NQQVGVBANY EVFXF NFFBPVNGRQ JVGU NAL FVTAVSVPNAG YNGR FGNTR PUNATR GB GUR ZVFFVBA CYNA. GUR GUVEQ BCGVBA PNEEVRF GUR ERNY GUERNG GUNG JR JVYY SNVY GB SHYSVY GUR CEVZNEL BOWRPGVIR BS N ZNAARQ YNAQVAT ORSBER GUR RAQ BS GUR LRNE.
BAR NYGREANGVIR GB GURFR BCGVBAF JBHYQ OR GB ERDHRFG SHEGURE VASBEZNGVBA SEBZ GUR FBIVRGF GB PYNEVSL GUR ZVFFVBA CYNA SBE GURVE BEOVGRE. VG VF CBFFVOYR GUNG GURL NER NYERNQL CYNAAVAT GB ZBQVSL VGF GENWRPGBEL NAQ GUNG AB SHEGURE NPGVBA JVYY OR ARRQRQ BA BHE CNEG, OHG PUNATRF GB GUR BEOVG PBHYQ VAPERNFR GUR EVFX NAQ JR ZVTUG YBFR GENPXVAT ERQHPVAT GUR YVXRYVUBBQ GUNG JR PNA ZNANTR GUR FVGHNGVBA.