PUZZLE #4139: Cylinder Cipher (diff 3)

cylinder learn difficulty: 3/7 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	ectdmijcvzpfuyxkxykutptuwojoykleqfiqvfgbeqgkjnwkqp lzklrbqvvutchuytjoeybejahmyejejcsqoxhwqhepbaposnbvdhvxjdtlpefugfztzmurdjuoormotxehdjwprzo pbpnkjqmqwwumlhbkgexoznnfebymelavhnrrwrfthruvhkgkpmmmmzcvjlimvcfebrzj xxgwvyggr wpgcemlus rxhtoozrz qhdxeedvy tkwiizwyt lcktekqwd ltafmuqll figjakcic rhdggtgup gcukbcsbo lntuvbmag mmmetexxo txwaptjkr zabsladlc izrsyyjnb mylpvxgkb iowacipfw tjfnesktd rxwbuknoe hqyeentjt uouaniiyn zuzcrpwxd ltaizzkfd lfpctpxxt nlmtlskii szkllaetd ozbvijlvb bhovofbpg xtwdzfzzl qeupaixzd tauadivdy mdmhdvvhe fugwiqlfq xxijsmjlv vuturoxlh duugcaaaz peupdupjh gkrvyreao awmcxpuml pueimbcxe plwdxsglt czlloqxsx ruwofmkqr zonrhlwui hwtvzvjkq obutvlipc glaxbibzt jnokgvvdf gwlpwgxvf kpukzguay fxedyxfir xqtkvykcw zmkoospsk yyhkdexcz kdxmialkv rdqxtoicy borxrerab ltdqjphmw ehwkfgbry eqkwbjyzv rrozpgqcb bihyaftht pyzofuhfg kjzdhybuw wtdudeshr gnghavkee dfopfjcdc tnfnblpry ehssakrlq mvvobpvhi opslfaghj zyuszczfs lzshioeti gxvcabxuh baabchgss bwrnuuwjb fwmsxcbyi wnhtftpua vvzrtidgo bmlgfemis wgsafhxsx cifjewqsb lznlogzrg kyphfwwxo myjvdylpd affrhnthg nuutpaqsq jijhcltcm rnsdvjbjf wgicgrdwr ttofkavbv mloqgjmaq zbzqnpesw frrgysfuo znkxprelm vijfyizrf qgubsudzt tpnmmjima kqgnicnyz yamhtdlxm ntdveatkl dshjtatqo nybiswtcb qmsuewitg osjjxifnq xoeeqjvpq umnxmhjcr sieldccau uwnpqbeuq lamybaynq nzzbdewqo fmujucwyu hscizqgnh dpfmoglvf wxfxcvgxr tbthhordb ytwrqqxdy otewlppfv kmcpislcf vesomxwck vfejfxirx ksjxfthtq ddsyotexk zctzdtsbz ymwdytfrs yexcgihdr njxsenecw pocxgxnxa azmmeotls fbhdynave ehpmxbchz eipfkrkpy zclowdxxa grfzakcqu waomfsjbr gjxdnvabo vehivzrez rnvgodyib bdshdopha zuchnsofs bazjgruzi xdgphxtvy ojhvcrxya honaajtwg gvqsaispk caypcvmuv cxysyhdva
Cipher Type	`caesar`
Width Hint	`4-14`
Total Length	`1680`
Hint	`The text wraps around a cylinder. Find circumference W (4–14 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": "ectdmijcvzpfuyxkxykutptuwojoykleqfiqvfgbeqgkjnwkqp lzklrbqvvutchuytjoeybejahmyejejcsqoxhwqhepbaposnbvdhvxjdtlpefugfztzmurdjuoormotxehdjwprzo pbpnkjqmqwwumlhbkgexoznnfebymelavhnrrwrfthruvhkgkpmmmmzcvjlimvcfebrzj xxgwvyggr wpgcemlus rxhtoozrz qhdxeedvy tkwiizwyt lcktekqwd ltafmuqll figjakcic rhdggtgup gcukbcsbo lntuvbmag mmmetexxo txwaptjkr zabsladlc izrsyyjnb mylpvxgkb iowacipfw tjfnesktd rxwbuknoe hqyeentjt uouaniiyn zuzcrpwxd ltaizzkfd lfpctpxxt nlmtlskii szkllaetd ozbvijlvb bhovofbpg xtwdzfzzl qeupaixzd tauadivdy mdmhdvvhe fugwiqlfq xxijsmjlv vuturoxlh duugcaaaz peupdupjh gkrvyreao awmcxpuml pueimbcxe plwdxsglt czlloqxsx ruwofmkqr zonrhlwui hwtvzvjkq obutvlipc glaxbibzt jnokgvvdf gwlpwgxvf kpukzguay fxedyxfir xqtkvykcw zmkoospsk yyhkdexcz kdxmialkv rdqxtoicy borxrerab ltdqjphmw ehwkfgbry eqkwbjyzv rrozpgqcb bihyaftht pyzofuhfg kjzdhybuw wtdudeshr gnghavkee dfopfjcdc tnfnblpry ehssakrlq mvvobpvhi opslfaghj zyuszczfs lzshioeti gxvcabxuh baabchgss bwrnuuwjb fwmsxcbyi wnhtftpua vvzrtidgo bmlgfemis wgsafhxsx cifjewqsb lznlogzrg kyphfwwxo myjvdylpd affrhnthg nuutpaqsq jijhcltcm rnsdvjbjf wgicgrdwr ttofkavbv mloqgjmaq zbzqnpesw frrgysfuo znkxprelm vijfyizrf qgubsudzt tpnmmjima kqgnicnyz yamhtdlxm ntdveatkl dshjtatqo nybiswtcb qmsuewitg osjjxifnq xoeeqjvpq umnxmhjcr sieldccau uwnpqbeuq lamybaynq nzzbdewqo fmujucwyu hscizqgnh dpfmoglvf wxfxcvgxr tbthhordb ytwrqqxdy otewlppfv kmcpislcf vesomxwck vfejfxirx ksjxfthtq ddsyotexk zctzdtsbz ymwdytfrs yexcgihdr njxsenecw pocxgxnxa azmmeotls fbhdynave ehpmxbchz eipfkrkpy zclowdxxa grfzakcqu waomfsjbr gjxdnvabo vehivzrez rnvgodyib bdshdopha zuchnsofs bazjgruzi xdgphxtvy ojhvcrxya honaajtwg gvqsaispk caypcvmuv cxysyhdva",
  "cipher_type": "caesar",
  "width_hint": "4-14",
  "total_length": 1680,
  "hint": "The text wraps around a cylinder. Find circumference W (4\u201314 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 3