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k a April Highlights and 2025 AoPS Online Class Information
jlacosta   0
Yesterday at 3:18 PM
Spring is in full swing and summer is right around the corner, what are your plans? At AoPS Online our schedule has new classes starting now through July, so be sure to keep your skills sharp and be prepared for the Fall school year! Check out the schedule of upcoming classes below.

WOOT early bird pricing is in effect, don’t miss out! If you took MathWOOT Level 2 last year, no worries, it is all new problems this year! Our Worldwide Online Olympiad Training program is for high school level competitors. AoPS designed these courses to help our top students get the deep focus they need to succeed in their specific competition goals. Check out the details at this link for all our WOOT programs in math, computer science, chemistry, and physics.

Looking for summer camps in math and language arts? Be sure to check out the video-based summer camps offered at the Virtual Campus that are 2- to 4-weeks in duration. There are middle and high school competition math camps as well as Math Beasts camps that review key topics coupled with fun explorations covering areas such as graph theory (Math Beasts Camp 6), cryptography (Math Beasts Camp 7-8), and topology (Math Beasts Camp 8-9)!

Be sure to mark your calendars for the following events:
[list][*]April 3rd (Webinar), 4pm PT/7:00pm ET, Learning with AoPS: Perspectives from a Parent, Math Camp Instructor, and University Professor
[*]April 8th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MATHCOUNTS State Discussion
April 9th (Webinar), 4:00pm PT/7:00pm ET, Learn about Video-based Summer Camps at the Virtual Campus
[*]April 10th (Math Jam), 4:30pm PT/7:30pm ET, 2025 MathILy and MathILy-Er Math Jam: Multibackwards Numbers
[*]April 22nd (Webinar), 4:00pm PT/7:00pm ET, Competitive Programming at AoPS (USACO).[/list]
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0 replies
jlacosta
Yesterday at 3:18 PM
0 replies
J
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FTW tournament!
evt917   9
N 2 minutes ago by Yrock
[center]Since all FTW tournaments have dramatically failed, I'm trying a different format. Here is how it works:

1. Type \signup{your rating (type 800 for unrated)}

2. You will eventually be assigned to a game. I will be doing this. how i assign games

3. If you win, you get 2 points. However, if you win games in a row, you get more points per win. When you win $n$ games in a row, you score $n+1$ points instead of $2$ points. Nice, right? A tie equals $1$ point, and a loss is zero. A tie or a loss will break your win streak.

4. I do not know everybody's time preferences. Because so, I will announce in advance which two players will be playing, so they themselves can organize a game themselves. Remember, THE PLAYERS ARE ORGANIZING THE GAMES THEMSELVES!!! The format is up to them, but please make the time control at least 20 seconds. Please announce the results of the game here so i can update the scoreboard.

recommended format if you cannot decide



5. The tournament goes on until april 22nd! Extremely long, right? Note that you can still signup after the first games has started, but you will have a disadvantage because some people who signed up as soon as the tournament started already has points.

6. Once you are done with your game, I will pair you with another opponent. You may play against same people multiple times. You can also request a new partner if your's is inactive and doesn't want to play.


[rule]

Questions and Answers

All signups and ratings

[rule]

LIVE LEADERBOARD:

1st place:
2nd place:
3rd place

4th place:
5th place:
9 replies
+2 w
evt917
an hour ago
Yrock
2 minutes ago
J
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The daily problem!
Leeoz   56
N 10 minutes ago by Bummer12345
Every day, I will try to post a new problem for you all to solve! If you want to post a daily problem, you can! :)

Please hide solutions and answers, hints are fine though! :)

The first problem is:
[quote=March 21st Problem]Alice flips a fair coin until she gets 2 heads in a row, or a tail and then a head. What is the probability that she stopped after 2 heads in a row? Express your answer as a common fraction.[/quote]

Past Problems!
56 replies
Leeoz
Mar 21, 2025
Bummer12345
10 minutes ago
J
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2025 MATHCOUNTS State Hub
SirAppel   217
N 20 minutes ago by Akang11
Previous Years' "Hubs": (2022) (2023) (2024)Please Read

Now that it's April and we're allowed to discuss, and no one else has made this yet ...
[list=disc]
[*] CA: 43 (45 44 43 43 43 42 42 41 41 41)
[*] NJ: 43 (45 44 44 43 39 42 40 40 39 38) *
[*] NY: 42 (43 42 42 42 41 40)
[*] TX: 42 (43 43 43 42 42 40 40 38 38 38)
[*] MA: 41 (45 43 42 41)
[*] WA: 41 (41 45 42 41 41 41 41 41 41 40) *
[*] FL: 39 (42 41 40 39 38 37 37)
[*] IN: 39 (41 40 40 39 36 35 35 35 34 34)
[*] NC: 39 (42 42 41 39)
[*] IL: 38 (41 40 39 38 38 38)
[*] OR: 38 (44 41? 38 38)
[*] PA: 38 (41 40 40 38 38 37 36 36 34 34) *
[*] MD: 37 (43 39 39 37 37 37)
[*] CT: 36 (44 39? 38 36 34 34 34 34)
[*] MI: 36 (39 41 41 36 37 37 36 36 36 36) *
[*] MN: 36 (40 36 36 36 35 35 35 34)
[*] CO: 35 (41 37 37 35 35 35 ?? 31 31 30) *
[*] GA: 35 (38 37 36 35 34 34 34 34 34 33)
[*] OH: 35 (41 37 36 35)
[*] AR: 34 (46 45 35 34 33 31 31 31 29 29)
[*] WI: 34 (40 37 37 34 35 30 28 29 29 29) *
[*] NH: 31 (42 35 33 31 30)
[*] DE: 30 (34 33 32 30 30 29 28 27 26? 24)
[*] SC: 30 (33 33 31 30)
[*] IA: 29 (33 30 31 29 29 29 29 29 29 29 29 29) *
[*] NE: 28 (34 30 28 28 27 27 26 26 25 25)
[*] SD: 22 (30 29 24 22 22 22 21 21 20 20)
[/list]
Cutoffs Unknown

* means that CDR is official in that state.

Notes

For those asking about the removal of the tiers, I'd like to quote Jason himself:
[quote=peace09]
learn from my mistakes
[/quote]

Help contribute by sharing your state's cutoffs!
As per last year's guidelines, refrain from problem discussion until their official release on the MATHCOUNTS website.
217 replies
SirAppel
Apr 1, 2025
Akang11
20 minutes ago
J
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mathcounts state score thread
Soupboy0   51
N 25 minutes ago by Shan3t
\begin{table}[]
\begin{tabular}{llllll} Username & Score & Sprint & Target & Nats? & Sillies \\ Soupboy0 & 40 & 24 & 16 & yes & 6 \\ & & & & & \\ & & & & & \end{tabular}\end{table}
51 replies
Soupboy0
Apr 1, 2025
Shan3t
25 minutes ago
J
No more topics!
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k How to pronounce Rusczyk
Dream9   22
N Mar 31, 2025 by MathNinja9
I've always said like ruzz icks. I don't know why I say it as plural but does anyone know how to say the sigma's last name?
22 replies
Dream9
Mar 29, 2025
MathNinja9
Mar 31, 2025
J
How to pronounce Rusczyk
G H J
Reveal topic tags
Richard Rusczyk
L
G H BBookmark kLocked kLocked NReply
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Dream9
78 posts
Dream9
#1 h  Mar 29, 2025, 11:48 PM • 2 Y
Y by DhruvJha, RainbowJessa
I've always said like ruzz icks. I don't know why I say it as plural but does anyone know how to say the sigma's last name?
Z Y
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jkim0656
533 posts
jkim0656
#2 h  Mar 29, 2025, 11:49 PM • 1 Y
Y by RainbowJessa
i say ruzz ick without the plural
and have heard people say it like that too
Z Y
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KF329
297 posts
KF329
#3 h  Mar 30, 2025, 2:13 AM • 1 Y
Y by RainbowJessa
i just like don't say it but if i have to i also say it like ruzz ick
Z Y
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K1mchi_
6 posts
K1mchi_
#4 h  Mar 30, 2025, 11:30 PM • 1 Y
Y by RainbowJessa
Rush KUH zick
But tbh im not sure.
Is this post spam or smth?
Z Y
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DhruvJha
806 posts
DhruvJha
#5 h  Mar 30, 2025, 11:34 PM
Y by
roosk-zik
Z Y
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Yihangzh
605 posts
Yihangzh
#6 h  Mar 30, 2025, 11:42 PM • 2 Y
Y by peppermint_cat, Exponent11
rus-ick$ $
Z Y
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mdk2013
562 posts
mdk2013
#7 h  Mar 30, 2025, 11:54 PM • 1 Y
Y by Exponent11
I heard richard RUCH-ick somewhere, i also say rus-ick if people give me weird glances
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SpeedCuber7
1766 posts
SpeedCuber7
#8 h  Mar 31, 2025, 12:00 AM • 3 Y
Y by mdk2013, sehgalsh, Exponent11
The official Wikipedia article gives the pronounciation as /ˈrʌsɪk/ or $\boxed{\text{ruh-ssik}}$ $\blacksquare$.
Z Y
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snake2020
4479 posts
snake2020
#9 h  Mar 31, 2025, 12:05 AM
Y by
QED.$ $
Z Y
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vincentwant
1283 posts
vincentwant
#10 h  Mar 31, 2025, 12:36 AM
Y by
in Polish it's similar to "ruschik" with rolled r and english long u and short i
This post has been edited 2 times. Last edited by vincentwant, Mar 31, 2025, 12:36 AM
Z Y
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DhruvJha
806 posts
DhruvJha
#11 h  Mar 31, 2025, 12:40 AM • 1 Y
Y by Exponent11
vincentwant wrote:
in Polish it's similar to "ruschik" with rolled r and english long u and short i

Yeah that seems right

However when referring to him, I just say Richard
This post has been edited 1 time. Last edited by DhruvJha, Mar 31, 2025, 12:43 AM
Reason: sw
Z Y
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mathenrichmentaops
534 posts
mathenrichmentaops
#12 h  Mar 31, 2025, 12:45 AM
Y by
roos-chik
Z Y
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avyaank
48 posts
avyaank
#13 h  Mar 31, 2025, 12:53 AM • 1 Y
Y by Exponent11
rus-zik


weee
Z Y
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km2
2 posts
km2
#14 h  Mar 31, 2025, 1:06 AM
Y by
czyk makes like a check or chick sound I think so maybe Rus-chick or Rus-check?
Z Y
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km2
2 posts
km2
#15 h  Mar 31, 2025, 1:07 AM
Y by
My friend's last name is Tomczyk and its Tom-chick
Z Y
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WiseHawkCuteFriendly
565 posts
WiseHawkCuteFriendly
#16 h  Mar 31, 2025, 1:39 AM
Y by
I say Russ Zyuck for some reason
Z Y
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KF329
297 posts
KF329
#17 h  Mar 31, 2025, 9:32 AM
Y by
eh...but anyway

farewell, Richard Rusczyk
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K1mchi_
6 posts
K1mchi_
#18 h  Mar 31, 2025, 3:34 PM
Y by
I apologize, my previous post was a joke.

The cyk part is something like check or chick.
Z Y
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MathNinja9
2669 posts
MathNinja9
#19 h  Mar 31, 2025, 4:44 PM
Y by
I just say "RUSC-zick" :rotfl: :P
Z Y
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Yrock
1245 posts
Yrock
#20 h  Mar 31, 2025, 4:56 PM
Y by
rooh-zeek

with a long u
This post has been edited 1 time. Last edited by Yrock, Mar 31, 2025, 4:57 PM
Z Y
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MrMustache
2923 posts
MrMustache
#21 h  Mar 31, 2025, 5:07 PM
Y by
rooz check is the correct pronunciation I believe
Z Y
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Dream9
78 posts
Dream9
#22 h  Mar 31, 2025, 5:48 PM • 2 Y
Y by MathNinja9, Exponent11
At least there's Richard :)
Z Y
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MathNinja9
2669 posts
MathNinja9
#23 h  Mar 31, 2025, 5:49 PM
Y by
Dream9 wrote:
At least there's Richard :)

yessss so much easier :rotfl:
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