Spectrum archive

Every Spectrum so far, 91 puzzles, each with its solution worked through.

Pick a day to read how it comes out, or play it from there: a day you missed can still be played for a score that sticks, though never for a streak. Today’s solution appears at midnight UTC. New to it? Read how to play Spectrum first.

November 2026

• Spectrum #91 · Fri, Nov 13 — Order these by how far down they are
• Spectrum #90 · Thu, Nov 12 — Order these subway systems by number of stations
• Spectrum #89 · Wed, Nov 11 — Order these animals by number of teeth
• Spectrum #88 · Tue, Nov 10 — Order these by how big the number is
• Spectrum #87 · Mon, Nov 9 — Order these places by population
• Spectrum #86 · Sun, Nov 8 — Order these national parks by visitors in a year
• Spectrum #85 · Sat, Nov 7 — Order these verse forms by number of lines
• Spectrum #84 · Fri, Nov 6 — Order these cities by their original area code
• Spectrum #83 · Thu, Nov 5 — Order these planets by length of day
• Spectrum #82 · Wed, Nov 4 — Order these NHL teams by Stanley Cups won
• Spectrum #81 · Tue, Nov 3 — Order these countries by their highest point
• Spectrum #80 · Mon, Nov 2 — Order these artists by Grammys won
• Spectrum #79 · Sun, Nov 1 — Order these by half-life

October 2026

• Spectrum #78 · Sat, Oct 31 — Order these blood types by how common they are
• Spectrum #77 · Fri, Oct 30 — Order these elements by share of the universe
• Spectrum #76 · Thu, Oct 29 — Order these elements by share of body weight
• Spectrum #75 · Wed, Oct 28 — Order these elements by share of Earth's crust
• Spectrum #74 · Tue, Oct 27 — Order these metals by density
• Spectrum #73 · Mon, Oct 26 — Order these by the speed of sound through them
• Spectrum #72 · Sun, Oct 25 — Order these places by water's boiling point
• Spectrum #71 · Sat, Oct 24 — Order these liquids by boiling point
• Spectrum #70 · Fri, Oct 23 — Order these by pH
• Spectrum #69 · Thu, Oct 22 — Order these fruits by sugar per 100g
• Spectrum #68 · Wed, Oct 21 — Order these universities by endowment
• Spectrum #67 · Tue, Oct 20 — Order these animals by height
• Spectrum #66 · Mon, Oct 19 — Order these snakes by typical length
• Spectrum #65 · Sun, Oct 18 — Order these sharks by typical length
• Spectrum #64 · Sat, Oct 17 — Order these birds by typical weight
• Spectrum #63 · Fri, Oct 16 — Order these brains by weight
• Spectrum #62 · Thu, Oct 15 — Order these species by chromosomes
• Spectrum #61 · Wed, Oct 14 — Order these animals by number of eyes
• Spectrum #60 · Tue, Oct 13 — Order these teams by World Series won
• Spectrum #59 · Mon, Oct 12 — Order these Broadway shows by total performances
• Spectrum #58 · Sun, Oct 11 — Order these books by length
• Spectrum #57 · Sat, Oct 10 — Order these ended shows by episodes made
• Spectrum #56 · Fri, Oct 9 — Order these classic rock songs by length
• Spectrum #55 · Thu, Oct 8 — Order these films by runtime
• Spectrum #54 · Wed, Oct 7 — Order these statues by height
• Spectrum #53 · Tue, Oct 6 — Order these Monopoly squares by price
• Spectrum #52 · Mon, Oct 5 — Order these words by Scrabble value
• Spectrum #51 · Sun, Oct 4 — Order these batteries by weight
• Spectrum #50 · Sat, Oct 3 — Order these coins by weight
• Spectrum #49 · Fri, Oct 2 — Order these bills by how long they stay in circulation
• Spectrum #48 · Thu, Oct 1 — Order these dairy products by fat content

September 2026

• Spectrum #47 · Wed, Sep 30 — Order these egg sizes by weight per dozen
• Spectrum #46 · Tue, Sep 29 — Order these mattress sizes by width
• Spectrum #45 · Mon, Sep 28 — Order these presidents by age taking office
• Spectrum #44 · Sun, Sep 27 — Order these US flags by number of stars
• Spectrum #43 · Sat, Sep 26 — Order these presidents by their number in the sequence
• Spectrum #42 · Fri, Sep 25 — Order these file formats by introduction
• Spectrum #41 · Thu, Sep 24 — Order these fonts by creation
• Spectrum #40 · Wed, Sep 23 — Order these anime by US-known premiere
• Spectrum #39 · Tue, Sep 22 — Order these villains by first appearance
• Spectrum #38 · Mon, Sep 21 — Order these Muppets by debut
• Spectrum #37 · Sun, Sep 20 — Order these Disney princesses by debut
• Spectrum #36 · Sat, Sep 19 — Order these Christmas songs by when they were written
• Spectrum #35 · Fri, Sep 18 — Order these operas by premiere
• Spectrum #34 · Thu, Sep 17 — Order these ballets by premiere
• Spectrum #33 · Wed, Sep 16 — Order these state quarters by minting
• Spectrum #32 · Tue, Sep 15 — Order these sports by when they joined the Olympics
• Spectrum #31 · Mon, Sep 14 — Order these handhelds by release
• Spectrum #30 · Sun, Sep 13 — Order these computers by debut
• Spectrum #29 · Sat, Sep 12 — Order these robots by debut
• Spectrum #28 · Fri, Sep 11 — Order these submarine milestones by year
• Spectrum #27 · Thu, Sep 10 — Order these motorcycle milestones by year
• Spectrum #26 · Wed, Sep 9 — Order these cycling milestones by year
• Spectrum #25 · Tue, Sep 8 — Order these film milestones by year
• Spectrum #24 · Mon, Sep 7 — Order these shopping firsts by year
• Spectrum #23 · Sun, Sep 6 — Order these monarchs by length of reign
• Spectrum #22 · Sat, Sep 5 — Order these Nobel Prizes by year
• Spectrum #21 · Fri, Sep 4 — Order these voting milestones by year
• Spectrum #20 · Thu, Sep 3 — Order these famous speeches by year
• Spectrum #19 · Wed, Sep 2 — Order these games by when a computer beat the best humans
• Spectrum #18 · Tue, Sep 1 — Order these TV milestones by year

August 2026

• Spectrum #17 · Mon, Aug 31 — Order these car features by first appearance
• Spectrum #16 · Sun, Aug 30 — Order these fitness crazes by when they started
• Spectrum #15 · Sat, Aug 29 — Order these Michael Jackson albums by release
• Spectrum #14 · Fri, Aug 28 — Order these Taylor Swift albums by release
• Spectrum #13 · Thu, Aug 27 — Order these Beatles albums by release
• Spectrum #12 · Wed, Aug 26 — Order these Spielberg films by release
• Spectrum #11 · Tue, Aug 25 — Order these Tom Hanks films by release
• Spectrum #10 · Mon, Aug 24 — Order these figures by birth year
• Spectrum #9 · Sun, Aug 23 — Order these plays by premiere
• Spectrum #8 · Sat, Aug 22 — Order these paintings by when they were painted
• Spectrum #7 · Fri, Aug 21 — Order these authors by birth year
• Spectrum #6 · Thu, Aug 20 — Order these scientists by birth year
• Spectrum #5 · Wed, Aug 19 — Order these painters by birth year
• Spectrum #4 · Tue, Aug 18 — Order these composers by birth year
• Spectrum #3 · Mon, Aug 17 — Order these peaks by first ascent
• Spectrum #2 · Sun, Aug 16 — Order these pizza chains by founding
• Spectrum #1 · Sat, Aug 15 — Order these chains by their first location