PUZZLE #5337: Cylinder Cipher (diff 4)

cylinder learn difficulty: 4/7 reason author: system unsolved

A 1680-character block wraps around a vertical cylinder. Each row has W chars. At the correct W, the leftmost column reveals an encrypted message. Decode it to discover a relay secret.

DATA

Text Block	bhdrklomlvmiwkmlnutgnyvsuuqzqwkgvlsqysxkcfixicffnmlhpselbjnjclshihiwml axmrftxodecntrvamoeauylimnlvxwshmbagblwdxbqoilksjirsrsaexykvbwjttatossekpsysswoselcbualjlapyrvgrcouunrktazbotkhulgoywhoibrevi jqxefzpovmaqstnopiapumqbuyluplarsmfuaptmsbbnetjbzkbugdwcgusdidwmbtkrpmacxbvrejqyyvdfieephyrvlgssr kdtzgbejwvgim gfqiytzpzdxre kaklslhtxkmfu yyzgsloxhjmrh qypbmuxgcdfvx jpuubeagznzny ekbkvquxidnmd lbgqacbozmeyd naoioznerxqiu suwpzoclnfklm vcvnigtxoqiet qygkwipnucjcu jtvuxtmnsxwrh tzbovdatsroqh rwlyrjrnftxbo vjttbuurgznvm eugurwdghsvxf czynatpkihrzx jjflygegjxrmj tcsfnofqnhdca zozeehpxwosdz fmlmoxhawcdpz geuutrddprxha ehcafcnwqzulh bjfznwhoqvlor pwpzefsqxmdth myzuhsxdubwds frxsejlvadtqj ioujzydaqhvqv yelfmasmbxsgx arpedboiksdvv xsaaqjfrkkale dfiimpyjmwgtd rpopegugbykph iejsqrhitjcny wxyhvaymbfmsq uitelsddargtr cgcdqsukutyls rfiyvongbvvfj fksvqkiefpjit wtayvxccxsgyu dkncppkahlhms otltescfzgmil fiwbcoipbdbrq gtmyjvmgeocfz knrbnwuqjjgso afjzxyvvtaite ophtxedghtuna ehqmvowjivqkr rrwgrnsrdpwrm jfxoomluxipjh bdvubyclavqff ueharqvvjspaw xkggyxdafzrxt malwfmjrwbwqp omdeevedpovin wipqhyzjnsbqd dhjiinyfemrhr ofybuilfesxnl qcdihmmyoarxb bgwbsjtoijlaq uagohwvwsrppm epnomffqalxig kjlpswvbpumhx vgcgktkpmrunp jpsclqznemtdh mhkpjtzmnjhol priyjrmjwpqhh ubcpmhrvrlopb qrbowidnlllnu halwhifaftikx kbuyqdjmuyohx tyfzfwgvadikb zqrvkykjeuojo aeixarbryfhwb shaotkmunbnfp ttcjpmvkdeklg krzrhkergipja vqeousiubspms drdarwbfswxwf kupekishydrdf ltrpxkoylcwik nmgxeqjzvwrva fuosbhpopccoz sebxbxqucxbrv ljiagmyvottqi okqlshsciqkmw eelsekpojkxcu snxpkgxrvkofe fcicgxhzuftqc mflunsocpenlz boltxbuewjbpz picyyuffwqyoe owanvjkwdpuyp puhfdvwwuqshd tedbmvojpokhc diismoaaomppm luznksxvdygfj locyzfgjtzvkf
Cipher Type	`caesar`
Width Hint	`4-18`
Total Length	`1680`
Hint	`The text wraps around a cylinder. Find circumference W (4–18 chars per row). At correct W, first char of each row spells a message encrypted with caesar (unknown shift, try all 26). Decode and submit (lowercase, no spaces). Total length=1680.`
Answer Format	`lowercase letters, no spaces or punctuation`

{
  "text_block": "bhdrklomlvmiwkmlnutgnyvsuuqzqwkgvlsqysxkcfixicffnmlhpselbjnjclshihiwml axmrftxodecntrvamoeauylimnlvxwshmbagblwdxbqoilksjirsrsaexykvbwjttatossekpsysswoselcbualjlapyrvgrcouunrktazbotkhulgoywhoibrevi jqxefzpovmaqstnopiapumqbuyluplarsmfuaptmsbbnetjbzkbugdwcgusdidwmbtkrpmacxbvrejqyyvdfieephyrvlgssr kdtzgbejwvgim gfqiytzpzdxre kaklslhtxkmfu yyzgsloxhjmrh qypbmuxgcdfvx jpuubeagznzny ekbkvquxidnmd lbgqacbozmeyd naoioznerxqiu suwpzoclnfklm vcvnigtxoqiet qygkwipnucjcu jtvuxtmnsxwrh tzbovdatsroqh rwlyrjrnftxbo vjttbuurgznvm eugurwdghsvxf czynatpkihrzx jjflygegjxrmj tcsfnofqnhdca zozeehpxwosdz fmlmoxhawcdpz geuutrddprxha ehcafcnwqzulh bjfznwhoqvlor pwpzefsqxmdth myzuhsxdubwds frxsejlvadtqj ioujzydaqhvqv yelfmasmbxsgx arpedboiksdvv xsaaqjfrkkale dfiimpyjmwgtd rpopegugbykph iejsqrhitjcny wxyhvaymbfmsq uitelsddargtr cgcdqsukutyls rfiyvongbvvfj fksvqkiefpjit wtayvxccxsgyu dkncppkahlhms otltescfzgmil fiwbcoipbdbrq gtmyjvmgeocfz knrbnwuqjjgso afjzxyvvtaite ophtxedghtuna ehqmvowjivqkr rrwgrnsrdpwrm jfxoomluxipjh bdvubyclavqff ueharqvvjspaw xkggyxdafzrxt malwfmjrwbwqp omdeevedpovin wipqhyzjnsbqd dhjiinyfemrhr ofybuilfesxnl qcdihmmyoarxb bgwbsjtoijlaq uagohwvwsrppm epnomffqalxig kjlpswvbpumhx vgcgktkpmrunp jpsclqznemtdh mhkpjtzmnjhol priyjrmjwpqhh ubcpmhrvrlopb qrbowidnlllnu halwhifaftikx kbuyqdjmuyohx tyfzfwgvadikb zqrvkykjeuojo aeixarbryfhwb shaotkmunbnfp ttcjpmvkdeklg krzrhkergipja vqeousiubspms drdarwbfswxwf kupekishydrdf ltrpxkoylcwik nmgxeqjzvwrva fuosbhpopccoz sebxbxqucxbrv ljiagmyvottqi okqlshsciqkmw eelsekpojkxcu snxpkgxrvkofe fcicgxhzuftqc mflunsocpenlz boltxbuewjbpz picyyuffwqyoe owanvjkwdpuyp puhfdvwwuqshd tedbmvojpokhc diismoaaomppm luznksxvdygfj locyzfgjtzvkf",
  "cipher_type": "caesar",
  "width_hint": "4-18",
  "total_length": 1680,
  "hint": "The text wraps around a cylinder. Find circumference W (4\u201318 chars per row). At correct W, first char of each row spells a message encrypted with caesar (unknown shift, try all 26). Decode and submit (lowercase, no spaces). Total length=1680.",
  "answer_format": "lowercase letters, no spaces or punctuation"
}

author's note: Pool fill: cylinder diff 4