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prasanna16391
Posts: 2003
Country : India | More details will be posted here soon. |
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Doredla Adilakshmi
Posts: 2
Country : India | prasanna16391 - 2026-06-29 11:37 PM
More details will be posted here soon. |
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Doredla Adilakshmi
Posts: 2
Country : India | Im rady sudoku puzzles |
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chaotic_iak
Posts: 245
 
Country : Indonesia |
Welcome to 26-Letter Puzzle Contest! Puzzlers Club is back at it again, with a set of 26 puzzles themed after... not the 26 letters of the alphabet, but the 26 NATO phonetic alphabet. You can read about the theme in the IB.
This set was actually created for 24-Hour Puzzle Championship. (The contest title alludes to that. ) We wrote this set for 24HPC 2026, but it was postponed to next year. Due to the strong "26" theming, we decided to release this set separately, and this contest was born.
You can find the IB in the contest link above. If you have any questions not answered by the IB, feel free to ask them here. Edited by chaotic_iak 2026-07-01 5:51 PM
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randomperson1729
Posts: 12
Country : United States | For Balance (#11 on the IB): how exactly is the torque of the main rod calculated with regard to weights on attached rods (i.e. the two bottom rods on the main example)? When I first read the instructions, I thought each subordinate rod's torque on the main rod was calculated by adding the torque of both sides of the smaller rod and multiplying it by the distance of that rod's fulcrum to the main rod's fulcrum, but the math only balances out if you instead use each weight's horizontal distance to the main fulcrum without regard to vertical distance: with the former you get 2*5 _PLUS_ 1(2*2_PLUS_1*4) =! 4(3*1_PLUS_1*3), while with the latter you get 2*5_PLUS_3*2_PLUS_0*4=1*1_PLUS_5*3. |
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chaotic_iak
Posts: 245
Country : Indonesia | randomperson1729 - 2026-07-10 11:06 AM
For Balance (#11 on the IB): how exactly is the torque of the main rod calculated with regard to weights on attached rods (i.e. the two bottom rods on the main example)? When I first read the instructions, I thought each subordinate rod's torque on the main rod was calculated by adding the torque of both sides of the smaller rod and multiplying it by the distance of that rod's fulcrum to the main rod's fulcrum, but the math only balances out if you instead use each weight's horizontal distance to the main fulcrum without regard to vertical distance: with the former you get 2*5 _PLUS_ 1(2*2_PLUS_1*4) =! 4(3*1_PLUS_1*3), while with the latter you get 2*5_PLUS_3*2_PLUS_0*4=1*1_PLUS_5*3.
For all the lower rods, you use the lower rod's attachment point on the upper rod. So it reads (distance 2 * weight 5 ) _PLUS_ (distance 1 * (weight 2_PLUS_4 ) ) = (distance 4 * (weight 1_PLUS_3 ) ). |
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Leonardo024
Posts: 24
Country : The Netherlands | Reached+170+points+in+%3c25+minutes%2c+then+25%2b+for+Balance+Loop+after+2+mistakes%2c+then+another+25%2b+to+conclude+that+Tapa%2fPata+has+many%2c+many+solutions+after+checking+my+grid+5+times+%f0%9f%99%84+very+curious+what+I'm+missing.+Ergo+101+points+in+remaining+75+min%2c+what+a+stinker.+Despite+this%2c+I+enjoyed+the+puzzles+and+the+offered+variety%2fnovelty+a+lot.+Thanks+for+treating+us+with+this+extra+contest+PClub!+Looking+forward+to+post-solving+the+other+puzzles+based+on+this+so+far!+%f0%9f%8c%9f |
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pinkagape
Posts: 24
Country : United Kingdom | Looking+forward+to+getting+through+all+the+other+puzzles.+I+definitely+didn't+choose+the+right+ones+today! |
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dodomos
Posts: 1
Country : China | dodomos posted @ 2026-07-16 11:57 PM In+puzzles+that+require+drawing+directed+loops%2c+the+online+solving+mode+uses+%e2%80%9clinedir%e2%80%9d+as+the+default+composite+mode.+However%2c+since+the+version+of+penpa%2b+used+by+LMI+does+not+support+this+mode%2c+you+cannot+enter+data+using+this+option+and+must+adjust+the+mode+manually. |
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chaotic_iak
Posts: 245
Country : Indonesia | %5BQUOTE%5Ddodomos+%2D+2026%2D07%2D17++2%3A57+AM%0D%0A%0D%0AIn+puzzles+that+require+drawing+directed+loops%2C+the+online+solving+mode+uses+%E2%80%9Clinedir%E2%80%9D+as+the+default+composite+mode%2E+However%2C+since+the+version+of+penpa++used+by+LMI+does+not+support+this+mode%2C+you+cannot+enter+data+using+this+option+and+must+adjust+the+mode+manually%2E%5B%2FQUOTE%5D%0D%0A%0D%0AWe+only+found+out+about+this+when+some+solvers+reported+it%2C+during+the+contest%2E+We%27re+very+sorry+about+this%2E+We+should+have+been+more+diligent+in+checking+if+they+work%3B+it+never+crossed+my+mind+that+the+linedir+feature+is+not+supported+on+LMI%2E |
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7star
Posts: 1
| 7star posted @ 2026-07-17 3:53 PM hello+every+one%F0%9F%98%8E |
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anurag
Posts: 152
Country : India | anurag posted @ 2026-07-17 7:35 PM The+last+date+was+17th+and+it+is+17th.+Could+this+be+extended%3f |
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chaotic_iak
Posts: 245
Country : Indonesia | anurag - 2026-07-17 10:35 PM
The last date was 17th and it is 17th. Could this be extended?
Sorry, we don't know why the LMI banner says it goes to 17th, but the contest is planned to end on 16th, specifically 16th at 23:59 UTC. This forum thread and the IB both say 10-16 July. Edited by chaotic_iak 2026-07-17 10:15 PM
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@ 2026-06-30 5:07 PM (#40859 - in reply to #40854) (#40859) Top