Sudoku Champs Practice Test - U10 & U12 has started Discuss
Sudoku Champs Practice Test - U15 & U18 has started Discuss
Riad Khanmagomedov's April Contest — 13th to 21st April 202465 posts • Page 2 of 3 • 1 2 3
@ 2024-04-23 2:30 AM (#32601 - in reply to #32543) (#32601) Top

Puzlifouk



Posts: 67
202020
Country : France

Puzlifouk posted @ 2024-04-23 2:30 AM

Hello,
No news since the end of the competition; what's going on? In any case, like every year, I really enjoyed it!
My only regret is that I ran out of time to come up with a proper solution to problem 10 - By Compass ...
@ 2024-04-23 5:45 AM (#32602 - in reply to #32543) (#32602) Top

kiwijam



Posts: 187
10020202020
Country : New Zealand

kiwijam posted @ 2024-04-23 5:45 AM

For those that are new to Riad's contest, the next step is that a PDF containing all the optimiser solutions will be shared, so the community can check they're valid. I imagine the By Compass submissions might be very slow to produce.
Also the first 9 puzzles will be scored normally by LMI, there is just some test data on that page for now.
@ 2024-04-23 10:30 AM (#32603 - in reply to #32543) (#32603) Top

debmohanty




1000500100100100202020
Country : India

debmohanty posted @ 2024-04-23 10:30 AM

Optimizer Submissions

Submissions to Optimizer puzzles here.

Puzzles are not checked for correctness. If you notice any incorrect submissions, please help Riad by reporting them.
@ 2024-04-23 10:32 AM (#32604 - in reply to #32602) (#32604) Top

debmohanty




1000500100100100202020
Country : India

debmohanty posted @ 2024-04-23 10:32 AM

kiwijam - 2024-04-23 5:45 AM

For those that are new to Riad's contest, the next step is that a PDF containing all the optimiser solutions will be shared, so the community can check they're valid. I imagine the By Compass submissions might be very slow to produce.
Also the first 9 puzzles will be scored normally by LMI, there is just some test data on that page for now.
Apologies for the delay. I have lost some of the software I use for creating the images. You are right that generating images for By Compass was indeed difficult. I have just produced the the submission entries as-is. It is going to be lot of work for Riad to cross-check.
@ 2024-04-23 1:44 PM (#32605 - in reply to #32543) (#32605) Top

Leonardo024




Posts: 18

Country : The Netherlands

Leonardo024 posted @ 2024-04-23 1:44 PM

Wow+the+optimizers+are+of+such+high+quality%21+It%27s+amazing+how+witty+people+get+with+their+route+planning+in+By+Compass++and+how+much+people+can+do+with+just+a+few+numbers+in+Easy+as+Opti+%F0%9F%A4%AF+%28and+I+can%27t+even+manage+to+solve+all+of+the+right+grids+%F0%9F%98%86%29%0D%0AVery+happy+with+my+Counting+Names+submission+tho%2C+my+goal+was+to+beat+the+Tim%2DLin+combo+%F0%9F%98%89%0D%0ABig+congrats+to+all+the+great+submissions%2C+with+kiwijam+being+a+standout+%F0%9F%98%8E%0D%0AThanks+for+organizing+again+Riad+%26+co+%F0%9F%91%8F
@ 2024-04-23 1:44 PM (#32606 - in reply to #32543) (#32606) Top

Leonardo024




Posts: 18

Country : The Netherlands

Leonardo024 posted @ 2024-04-23 1:44 PM

Oops I posted a few times as the submission button seemed not to work but probably just slow internet.

Edited by Leonardo024 2024-04-23 1:46 PM
@ 2024-04-23 2:15 PM (#32610 - in reply to #32603) (#32610) Top

kiwijam



Posts: 187
10020202020
Country : New Zealand

kiwijam posted @ 2024-04-23 2:15 PM

I spent some time hand-drawing lines on the By Compass grids.
Quite interesting to see the many approaches.
I can't post it here, so will email to Deb.

[edit: haha Leonardo, I was also failing to submit my posts (I thought) because it wasn't letting me attach a file. A "Delete Post" option would be nice.]

Edited by kiwijam 2024-04-23 2:24 PM
@ 2024-04-23 3:26 PM (#32613 - in reply to #32543) (#32613) Top

prasanna16391



Posts: 1801
1000500100100100
Country : India

prasanna16391 posted @ 2024-04-23 3:26 PM

Cleaned up some duplicate posts.
@ 2024-04-23 7:56 PM (#32615 - in reply to #32543) (#32615) Top

L00ping007



Posts: 11

Country : France

L00ping007 posted @ 2024-04-23 7:56 PM

Hey+everyone%2c+thanks+for+the+great+puzzles+!+Hard+ones+but+highly+enjoyable+ones+!%0aIs+it+possible+for+me+to+claim+any+points+for+puzzle+number+8+%3f+I+miswrote+LIANE----L-A-N-%23-HUDAK-O-JIAQI+instead+of+LIANE----L-Q-N-%23-HUDAK-O-JIAQI+%f0%9f%98%9c+I+solved+the+grid+correctly+(JIAQI+is+correct+so+the+Q+should+be+in+the+row+...)+but+typed+my+answer+too+fast+%3ap+Thanks+!%0aI+don't+dare+to+ask+for+the+points+for+puzzle+6%2c+I+only+entered+the+keys+for+left+grid+rows%2c+too+bad+for+me%2c+I+solved+the+puzzle+too+but+next+time+I'll+be+more+focused+about+answer+format+%3a)
@ 2024-04-23 8:32 PM (#32616 - in reply to #32543) (#32616) Top

leoranger



Posts: 2

Country : Latvia

leoranger posted @ 2024-04-23 8:32 PM

Thanks for the great contest! The same wishes as L00ping007's. I solved puzzle 8 correctly, just soft click typing '-' after # LIANE----L-Q-M-#HUDAK-O-JIAQI instead of LIANE----L-Q-M-#-HUDAK-O-JIAQI.
@ 2024-04-23 9:36 PM (#32618 - in reply to #32543) (#32618) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-23 9:36 PM

In+this+Contest+there+is+no+practice+of+correcting+points+for+the+first+9+puzzles%2E+Enough+time+is+given+to+check+everything+before+sending+answers%2E+Please+be+careful%2E+Moreover%2C+Arnaud+and+Jelena+give+different+answers+on+the+forum%2E%0D%0AI+checked+all+the+answers+for+optimization+puzzles%2E+Some+EASY+AS+OPTI+puzzles+had+several+solutions%2E+If+Martin+and+Du%D1%81+agree+with+this%2C+we+are+ready+to+publish+preliminary+results%2E
@ 2024-04-23 10:30 PM (#32619 - in reply to #32543) (#32619) Top

Hugo



Posts: 5

Country : The Netherlands

Hugo posted @ 2024-04-23 10:30 PM

The correct score for my puzzle 10 (By Compass) is 172.
Line scores : 4,4,9,10,10,11,7,8,8,9,8,7,9,8,7,6,8,6,7,8,9,5,4
@ 2024-04-23 11:14 PM (#32620 - in reply to #32543) (#32620) Top

leoranger



Posts: 2

Country : Latvia

leoranger posted @ 2024-04-23 11:14 PM

Riad, agree with your opinion. Enough time is given to check everything before sending answers. However, why Christian got 14 points for puzzle 12? He mistook too - in the word "Lionel" he submitted digit 0 instead of "o" letter.
@ 2024-04-24 12:48 AM (#32621 - in reply to #32543) (#32621) Top

Puzlifouk



Posts: 67
202020
Country : France

Puzlifouk posted @ 2024-04-24 12:48 AM

I've already congratulated Riad - as I do every year - on the quality of his problems and the event he puts on for us every year, which I personally wouldn't miss for the world (my son better not be getting married that week, or I'll skip the ceremony!).
I must also warmly congratulate kiwijam, who did an almost faultless job (a great performance), even though the optimization problems seemed to me to be of a very high level.
Finally, I'd like to confirm that in my opinion you need to be fairly strict about entering answers correctly and respecting the answer format, as long as it's not deemed ambiguous. We all know that this can be discriminating (I've had to pay the price), which is why it's important to keep a close eye on things.
@ 2024-04-24 12:52 AM (#32622 - in reply to #32618) (#32622) Top

L00ping007



Posts: 11

Country : France

L00ping007 posted @ 2024-04-24 12:52 AM

You're perfectly right, I had time to double check my answers ! I'll be careful next time ;-)
@ 2024-04-24 9:33 AM (#32623 - in reply to #32543) (#32623) Top

Administrator



20001000500202020
Country : India

Administrator posted @ 2024-04-24 9:33 AM

@ 2024-04-24 1:45 PM (#32625 - in reply to #32619) (#32625) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-24 1:45 PM

Hugo - 2024-04-23 10:30 PM

The correct score for my puzzle 10 (By Compass) is 172.
Line scores : 4,4,9,10,10,11,7,8,8,9,8,7,9,8,7,6,8,6,7,8,9,5,4

I did not check your solution, considering that fewer points were claimed than others. I'll go back to checking and reviewing the scores.
@ 2024-04-24 2:06 PM (#32626 - in reply to #32620) (#32626) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-24 2:06 PM

%5BQUOTE%5Dleoranger+%2D+2024%2D04%2D23++11%3A14+PM%0D%0A%0D%0ARiad%2C+agree+with+your+opinion%2E+Enough+time+is+given+to+check+everything+before+sending+answers%2E+However%2C+why+Christian+got+14+points+for+puzzle+12%3F+He+mistook+too+%2D+in+the+word+%22Lionel%22+he+submitted+digit+0+instead+of+%22o%22+letter%2E%5B%2FQUOTE%5D%0D%0AJelena%2C+I+check+optimization+problems+carefully+and+correct+the+participants%2E+I+understand+that+Christian+indicated+the+letter+O+and+I+give+maximum+points%2E+Great+result%2C+Christian+deserves+14+points%2E+In+your+solution%2C+I+also+saw+a+mistake+in+the+name+Beatrice+and+planned+to+give+points+if+the+total+result+was+a+little+better%2E+NGS+had+a+slightly+better+result%2C+but+something+didn%E2%80%99t+add+up+in+the+5th+row%2E+Obviously%2C+there+was+a+shift+in+his+solution%2C+which+is+easily+corrected%2E+That%27s+why+the+NGS+received+2+points%2E%0D%0AHugo+stated+that+his+result+was+calculated+incorrectly%2E+I+will%2C+of+course%2C+go+back+to+checking+his+answer+and+correct+the+calculations+in+his+solution%2E+%0D%0A
@ 2024-04-24 2:10 PM (#32627 - in reply to #32621) (#32627) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-24 2:10 PM

Puzlifouk - 2024-04-24 12:48 AM

I've already congratulated Riad - as I do every year - on the quality of his problems and the event he puts on for us every year, which I personally wouldn't miss for the world (my son better not be getting married that week, or I'll skip the ceremony!).
I must also warmly congratulate kiwijam, who did an almost faultless job (a great performance), even though the optimization problems seemed to me to be of a very high level.
Finally, I'd like to confirm that in my opinion you need to be fairly strict about entering answers correctly and respecting the answer format, as long as it's not deemed ambiguous. We all know that this can be discriminating (I've had to pay the price), which is why it's important to keep a close eye on things.

Thank you very much! James has once again shown brilliant results, bravo! I will return to the announcement of the results after additional verification.
@ 2024-04-24 3:10 PM (#32630 - in reply to #32625) (#32630) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-24 3:10 PM

Riad Khanmagomedov - 2024-04-24 1:45 PM

Hugo - 2024-04-23 10:30 PM

The correct score for my puzzle 10 (By Compass) is 172.
Line scores : 4,4,9,10,10,11,7,8,8,9,8,7,9,8,7,6,8,6,7,8,9,5,4

I did not check your solution, considering that fewer points were claimed than others. I'll go back to checking and reviewing the scores.

There was an error in your solution in lines 19-21. Instead of W there should be E. I counted lines 19 and 20, but line 21 gives two polygons with a common vertex. Nevertheless, your result was slightly better than Carlos's. I gave you 2 points.
@ 2024-04-24 8:54 PM (#32631 - in reply to #32543) (#32631) Top

Menderbug



Posts: 17

Country : Germany

Menderbug posted @ 2024-04-24 8:54 PM

I assume the 0 points on an optimiser means that the submission was invalid. Could you send me the multiple solutions you found for my Easy as Opti?
@ 2024-04-24 9:21 PM (#32632 - in reply to #32631) (#32632) Top

Carlos



Posts: 8

Country : France

Carlos posted @ 2024-04-24 9:21 PM

Menderbug, I think that the right grid of your puzzle Easy as Opti has at least these two solutions:

_3124_
_2_134
314_2_
4__312
243__1
1_24_3

_3124_
_2_134
314_2_
4_3_12
24_3_1
1_24_3
@ 2024-04-24 9:53 PM (#32633 - in reply to #32543) (#32633) Top

Menderbug



Posts: 17

Country : Germany

Menderbug posted @ 2024-04-24 9:53 PM

Oh, you're right. Bummer, I moved a 2-clue from C4 in the second grid to C6 in the first for aesthetic reasons because I thought they were equivalent. Must've overlooked something when re-solving.
@ 2024-04-24 11:58 PM (#32634 - in reply to #32633) (#32634) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-24 11:58 PM

Menderbug - 2024-04-24 9:53 PM

Oh, you're right. Bummer, I moved a 2-clue from C4 in the second grid to C6 in the first for aesthetic reasons because I thought they were equivalent. Must've overlooked something when re-solving.

Carlos, thanks for the two solutions given. There is also a 3rd solution:
_2134_
_4_132
413_2_
23__14
3_42_1
1_24_3.
Unfortunately, in such cases, points are not allowed.
@ 2024-04-25 2:50 PM (#32637 - in reply to #32543) (#32637) Top

Riad Khanmagomedov



Posts: 234
10010020
Country : Russia

Riad Khanmagomedov posted @ 2024-04-25 2:50 PM

Congratulations+to+the+winners+%E2%80%93+James%2C+Christian%2C+Paul+and+Ken%21%0D%0AThanks+to+all+participants%21%0D%0A
Riad Khanmagomedov's April Contest — 13th to 21st April 202465 posts • Page 2 of 3 • 1 2 3
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