Thread - Riad Khanmagomedov's April Contest

Restricted Thread

This is a restricted thread corresponding to an ongoing contest at LMI. This mainly means :

Comments posted in the thread after the contest started can only be viewed by players who have finished the contest. If you are not logged in to forum or if you have not finished the contest, you will see first few characters of the post.

The purpose is to encourage players to freely post comments while the contest is running.

Admins can make the post public before the contest is over, if it does not reveal anything about the puzzles. All the posts will be made public after the contest is over.

@ 2026-04-15 4:34 AM (#39344) (#39344) Top

prasanna16391

Posts: 1981

Country : India

prasanna16391 posted @ 2026-04-15 4:34 AM

This annual contest shall take place from 19-28 April 2026.
More details shall be shared in subsequent posts soon.

@ 2026-04-15 4:36 AM (#39345 - in reply to #39344) (#39345) Top

prasanna16391

Posts: 1981

Country : India

prasanna16391 posted @ 2026-04-15 4:36 AM

Some notes about April Contest 2026

Please note this contest will have a slightly different format than regular LMI tests.
Key differences from regular LMI tests:
1. There is no IB (i.e. no Instructions Booklet). If you have any questions about any puzzle, please ask here in the forum.
2. The PB (Puzzle Booklet) does not have any password.
3. You can download the pdf when the contest starts and start solving. Login at the contest page and click on "Start test" to start submitting.
4. There is no time limit other than the 10 day duration. You can submit until the contest ends.
5. There will be some optimizer puzzles. Other puzzles will be very hard (compared to regular LMI tests)
6. Same scores will have same rank (i.e. early submissions do not count towards rank)

Other important points:
7. There shall be no online solving interface (like penpa) provided for this test.
8. The score page shall be made available later.
9. There shall be 10 pages in the Puzzle Booklet.
10. Participants can submit answers any number of times. The last submission shall be considered for scoring.
11. There shall be no separate notification on submitting answers.

@ 2026-04-19 7:58 AM (#39433 - in reply to #39344) (#39433) Top

professorX

Posts: 45

Country : India

professorX posted @ 2026-04-19 7:58 AM

At what time will the contest start?

@ 2026-04-19 9:29 AM (#39434 - in reply to #39433) (#39434) Top

Administrator

Posts: 3598

Country : India

Administrator posted @ 2026-04-19 9:29 AM

professorX - 2026-04-19 7:58 AM

At what time will the contest start?

Oh my bad, thought the header was up. It starts at noon India time.

@ 2026-04-19 11:59 AM (#39435 - in reply to #39344) (#39435) Top

Administrator

Posts: 3598

Country : India

Administrator posted @ 2026-04-19 11:59 AM

The Puzzle Booklet is now available. Good luck to all participants!

@ 2026-04-19 12:55 PM (#39436 - in reply to #39344) (#39436) Top

Administrator

Posts: 3598

Country : India

Administrator posted @ 2026-04-19 12:55 PM

The marked

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You can also view the complete post after the test is over.

@ 2026-04-19 2:15 PM (#39437 - in reply to #39344) (#39437) Top

kiwijam

Posts: 195

Country : New Zealand

kiwijam posted @ 2026-04-19 2:15 PM

Admin: Please make this thread non-restricted.

@ 2026-04-19 2:25 PM (#39438 - in reply to #39344) (#39438) Top

kiwijam

Posts: 195

Country : New Zealand

kiwijam posted @ 2026-04-19 2:25 PM

#6 Azure and Rose Journey: Can the line visit the start or end points two times? e.g. we leave the start point with an azure segment, and later we pass through this point again with a long rose segment.
#12 Azure and Rose Optimum: Same question.

@ 2026-04-19 2:29 PM (#39439 - in reply to #39344) (#39439) Top

shedarshian

Posts: 1

Country : China

shedarshian posted @ 2026-04-19 2:29 PM

In the first puzzle, does the "overlap" in "may intersect or overlap" means that one orthogon completely contains another?

@ 2026-04-19 2:30 PM (#39440 - in reply to #39437) (#39440) Top

prasanna16391

Posts: 1981

Country : India

prasanna16391 posted @ 2026-04-19 2:30 PM

kiwijam - 2026-04-19 2:15 PM

Admin: Please make this thread non-restricted.

I think there is utility in keeping it restricted in case someone wants to verify their solution following the rules, or comment on a solve path - unrestricting individual posts is easy, just a button.

@ 2026-04-19 3:42 PM (#39441 - in reply to #39438) (#39441) Top

Riad Khanmagomedov

Posts: 252

Country : Russia

Riad Khanmagomedov posted @ 2026-04-19 3:42 PM

kiw

This post is restricted and you are seeing only the first few characters.
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@ 2026-04-19 3:44 PM (#39442 - in reply to #39439) (#39442) Top

Riad Khanmagomedov

Posts: 252

Country : Russia

Riad Khanmagomedov posted @ 2026-04-19 3:44 PM

she

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@ 2026-04-19 4:55 PM (#39443 - in reply to #39344) (#39443) Top

professorX

Posts: 45

Country : India

professorX posted @ 2026-04-19 4:55 PM

In puzzle

Edited by professorX 2026-04-19 4:56 PM

This post is restricted and you are seeing only the first few characters.
You can view complete post after finishing the test and logging in to the forum.
You can also view the complete post after the test is over.


Restricted Thread This is a restricted thread corresponding to an ongoing contest at LMI. This mainly means : Comments posted in the thread after the contest started can only be viewed by players who have finished the contest. If you are not logged in to forum or if you have not finished the contest, you will see first few characters of the post. The purpose is to encourage players to freely post comments while the contest is running. Admins can make the post public before the contest is over, if it does not reveal anything about the puzzles. All the posts will be made public after the contest is over.
	@ 2026-04-15 4:34 AM (#39344) (#39344) Top
prasanna16391 Posts: 1981 Country : India	prasanna16391 posted @ 2026-04-15 4:34 AM This annual contest shall take place from 19-28 April 2026. More details shall be shared in subsequent posts soon.
	@ 2026-04-15 4:36 AM (#39345 - in reply to #39344) (#39345) Top
prasanna16391 Posts: 1981 Country : India	prasanna16391 posted @ 2026-04-15 4:36 AM Some notes about April Contest 2026 Please note this contest will have a slightly different format than regular LMI tests. Key differences from regular LMI tests: 1. There is no IB (i.e. no Instructions Booklet). If you have any questions about any puzzle, please ask here in the forum. 2. The PB (Puzzle Booklet) does not have any password. 3. You can download the pdf when the contest starts and start solving. Login at the contest page and click on "Start test" to start submitting. 4. There is no time limit other than the 10 day duration. You can submit until the contest ends. 5. There will be some optimizer puzzles. Other puzzles will be very hard (compared to regular LMI tests) 6. Same scores will have same rank (i.e. early submissions do not count towards rank) Other important points: 7. There shall be no online solving interface (like penpa) provided for this test. 8. The score page shall be made available later. 9. There shall be 10 pages in the Puzzle Booklet. 10. Participants can submit answers any number of times. The last submission shall be considered for scoring. 11. There shall be no separate notification on submitting answers.
	@ 2026-04-19 7:58 AM (#39433 - in reply to #39344) (#39433) Top
professorX Posts: 45 Country : India	professorX posted @ 2026-04-19 7:58 AM At what time will the contest start?
	@ 2026-04-19 9:29 AM (#39434 - in reply to #39433) (#39434) Top
Administrator Posts: 3598 Country : India	Administrator posted @ 2026-04-19 9:29 AM professorX - 2026-04-19 7:58 AM At what time will the contest start? Oh my bad, thought the header was up. It starts at noon India time.
	@ 2026-04-19 11:59 AM (#39435 - in reply to #39344) (#39435) Top
Administrator Posts: 3598 Country : India	Administrator posted @ 2026-04-19 11:59 AM The Puzzle Booklet is now available. Good luck to all participants!
	@ 2026-04-19 12:55 PM (#39436 - in reply to #39344) (#39436) Top
Administrator Posts: 3598 Country : India	Administrator posted @ 2026-04-19 12:55 PM The marked This post is restricted and you are seeing only the first few characters. You can view complete post after finishing the test and logging in to the forum. You can also view the complete post after the test is over.
	@ 2026-04-19 2:15 PM (#39437 - in reply to #39344) (#39437) Top
kiwijam Posts: 195 Country : New Zealand	kiwijam posted @ 2026-04-19 2:15 PM Admin: Please make this thread non-restricted.
	@ 2026-04-19 2:25 PM (#39438 - in reply to #39344) (#39438) Top
kiwijam Posts: 195 Country : New Zealand	kiwijam posted @ 2026-04-19 2:25 PM #6 Azure and Rose Journey: Can the line visit the start or end points two times? e.g. we leave the start point with an azure segment, and later we pass through this point again with a long rose segment. #12 Azure and Rose Optimum: Same question.
	@ 2026-04-19 2:29 PM (#39439 - in reply to #39344) (#39439) Top
shedarshian Posts: 1 Country : China	shedarshian posted @ 2026-04-19 2:29 PM In the first puzzle, does the "overlap" in "may intersect or overlap" means that one orthogon completely contains another?
	@ 2026-04-19 2:30 PM (#39440 - in reply to #39437) (#39440) Top
prasanna16391 Posts: 1981 Country : India	prasanna16391 posted @ 2026-04-19 2:30 PM kiwijam - 2026-04-19 2:15 PM Admin: Please make this thread non-restricted. I think there is utility in keeping it restricted in case someone wants to verify their solution following the rules, or comment on a solve path - unrestricting individual posts is easy, just a button.
	@ 2026-04-19 3:42 PM (#39441 - in reply to #39438) (#39441) Top
Riad Khanmagomedov Posts: 252 Country : Russia	Riad Khanmagomedov posted @ 2026-04-19 3:42 PM kiw This post is restricted and you are seeing only the first few characters. You can view complete post after finishing the test and logging in to the forum. You can also view the complete post after the test is over.
	@ 2026-04-19 3:44 PM (#39442 - in reply to #39439) (#39442) Top
Riad Khanmagomedov Posts: 252 Country : Russia	Riad Khanmagomedov posted @ 2026-04-19 3:44 PM she This post is restricted and you are seeing only the first few characters. You can view complete post after finishing the test and logging in to the forum. You can also view the complete post after the test is over.
	@ 2026-04-19 4:55 PM (#39443 - in reply to #39344) (#39443) Top
professorX Posts: 45 Country : India	professorX posted @ 2026-04-19 4:55 PM In puzzle Edited by professorX 2026-04-19 4:56 PM This post is restricted and you are seeing only the first few characters. You can view complete post after finishing the test and logging in to the forum. You can also view the complete post after the test is over.