Detailed Results of Previous Competitions Surprise Tasks

Hi,

I am interested in knowing details of surprise tasks held in previous competitions such as MCWC’s. While the problem set is visible on the website, there is no information at all (at least I could not find) about what kind of results are obtained by competitors on the surprise tasks, beyond the sum of scores for 6 tasks. Since it makes 60 percent of the total score in the competition, It would be very helpful to know what kind of scores roughly translate to how many points, if I am to self evaluate and benchmark myself to know if I should sign up for a competition. Any leads would be appreciated on the same.

I competed in the 2012, 2016 and 2018 competitions. The scores varied quite a lot between rounds, and in some categories there were many competitors with scores close to 0.

The marking scheme has been that the top score gets 100 points, and then everyone else’s scores are scaled accordingly.

If you have a specific surprise task you want to know about, let me know which, and I’ll see if I know. Alternatively if you want to see the printouts of the scores, feel free to send me a message - I might still have them somewhere.

Hi Daniel,

Thanks for the update! Yes, printout of scores or any specific information about what score would fetch how many points for any task will be helpful! To make it simpler, we can stick to the 2018 surprise tasks:

1. (623474)+(32360752 /776) type
2. 889014113748268 mod 222 type
3. 3940000 / (15 x 53 x 59 ) type
5. Fraction addition and subtraction: (1/6 - 8/25 + 1/3 + 7/4 + 1/2)
6. Marking wrongly solved 9 digit multiplications 873401737∙199353207

In the field of memory competitions, all disciplines are known beforehand, so it is easy to train with a system and have a rough idea of what to expect. But here, it seems that there is very less knowledge about what to expect in 6/10 tasks. I understand that is the meaning of word ‘surprise’ but still

I appreciate your help in this

My eye caught:

889,014,113,748,268 mod 222.

889,014,113,748,268 - 888,000,000,000,000 = 1,014,113,748,268.
(in your mind, do 889 - 888 = 1 and leave the rest to be.)

1,014,113,748,268 - 888,000,000,000 = 126,113,748,268.
(in your mind, do 1014 - 888 = 14 + 112 (complement of 888) = 126 and leave the rest to be.)
126,113,748,268 - 111,000,000,000 = 15,113,748,268.
15,113,748,268 - 11,100,000,000 = 4,013,748,268.
4,013,748,268 - 3,330,000,000 = 683,748,268
683,748,268 - 666,000,000 = 17,748,268
17,748,268 - 11,100,000 = 6,648,268
6,648,268 - 5,550,000 = 1,098,268
1,098,268 - 888,000 = 210,268
210,268 - 111,000 = 99,268
99,268 - 88,800 = 10,468
10,468 - 9,990 = 478

478 - 444 = 34

1 Like

1/6 + 1/3 = 1/2
1/2 + 1/2 = 1

This leaves:
1 - 8/25 + 7/4.

Move to 100’s:
1 - 32/100 + 175/100 = 1 + 143/100 = 2.43

1 Like

Use 9 proof or 11 proof. Do a search here if you don’t know what that is.

Top score was 38
Median score was 11

Task 2: Fractions with Multiplication for Denominator
Top score was 76
Median score was 5 (yes, only 5)

Top score was 29
Median score was 9

Top score was 18
Median score was 6

Top score was 6
Median score was 3

Typically, to do well you need to get a high score on 1-2 and pick up some extra points on the others. Since everyone’s scores are scaled against the winner for that category, there can be some categories where most people get very low scores. I was 8th place in the Surprises despite very low results in the first two.

I also have some further info about the results of this competition if you’re interested to read more.

1 Like

Hi Daniel,

Thank you so much for your help! It is most appreciated and is going to be very useful for me

Thanks
Batman

Just confirming,

We get 10 minutes for each of these tasks right?
I am not good at division, but I got around 14 in Task 4 and 22 in Task 3 when i tried with 10 minutes, so I just wanted to confirm if i am missing something about the time because it’s odd that my score would be so close to the best in a WC.

Yep, 10 minutes for each question.

Honestly there were lots of high scores for the speed of light question, so you score is high but reasonable. Your fractions score is especially good though - well done!

Are you hoping to compete in the World Cup 2021? Would be great to see you there!

Thanks Daniel!

I am still deliberating about the same because I am very new to this field! Since there is time till May next year to apply, I will make a decision after a couple of months