We will hold <a href="https://atcoder.jp/contests/arc211">AtCoder Regular Contest 211 (Div. 2)</a>. - Contest URL: https://atcoder.jp/contests/arc211 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251130T2100&p1=248 - Duration: 120 minutes - Number of Tasks: 5 - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/hirayuu_At" class="username"><span class="user-orange">hirayuu_At</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a> - Rated range: 1200 ~ 2399 The point values will be 500-500-600-700-800. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc434">Ｓｋｙ Inc, Programming Contest 2025 (AtCoder Beginner Contest 434)</a>. - Contest URL: https://atcoder.jp/contests/abc434 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251129T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/yuto1115" class="username"><span class="user-red">yuto1115</span></a> - Rated range: ~ 1999 - The point values: 100-200-300-425-500-575-650 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/ahc057">AtCoder Heuristic Contest 057</a>. - Contest URL: https://atcoder.jp/contests/ahc057 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251129T1500&p1=248 - Duration: 4 hours - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="https://atcoder.jp/user/PrussianBlue" class="username"><span class="user-orange">PrussianBlue</span></a> - Rated range: All (Heuristic Rating) This contest is one of the qualifying contests for <a href="https://atcoder.jp/posts/1394">AWTF 2026</a>. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc433">AtCoder Beginner Contest 433</a>. - Contest URL: https://atcoder.jp/contests/abc433 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251122T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-yellow-4.png" class="user-rating-stage-m"><a href="/users/sounansya" class="username"><span class="user-yellow">sounansya</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/MMNMM" class="username"><span class="user-orange">MMNMM</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a> - Rated range: ~ 1999 - The point values: 100-200-300-400-450-500-600 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/arc210">AtCoder Regular Contest 210</a>. - Contest URL: https://atcoder.jp/contests/arc210 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251116T2100&p1=248 - Duration: 120 minutes - Number of Tasks: 6 - Writer: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a> - Rated range: 1200 ~ 2799 The point values will be 300-600-700-800-1000-1100. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc432">OMRON Corporation Programming Contest 2025 #2 (AtCoder Beginner Contest 432)</a>. - Contest URL: https://atcoder.jp/contests/abc432 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251115T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/yuto1115" class="username"><span class="user-red">yuto1115</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/mechanicalpenciI" class="username"><span class="user-orange">mechanicalpenciI</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a> - Rated range: ~ 1999 - The point values: 100-200-350-425-450-525-575 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/arc209">AtCoder Regular Contest 209 (Div. 1)</a>. - Contest URL: https://atcoder.jp/contests/arc209 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251109T2100&p1=248 - Duration: 150 minutes - Number of Tasks: 5 - Writer: <a href="/users/blackyuki" class="username"><span class="user-red">blackyuki</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-4.png" class="user-rating-stage-m"><a href="/users/KoD" class="username"><span class="user-orange">KoD</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/PCTprobability" class="username"><span class="user-red">PCTprobability</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/maspy" class="username"><span class="user-red">maspy</span></a> - Rated range: 1600 ~ 2999 The point values will be 700-700-900-900-1100. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc431">TOYOTA SYSTEMS Programming Contest 2025（AtCoder Beginner Contest 431)</a>. - Contest URL: https://atcoder.jp/contests/abc431 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251108T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/toam" class="username"><span class="user-orange">toam</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/MMNMM" class="username"><span class="user-orange">MMNMM</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/sounansya" class="username"><span class="user-orange">sounansya</span></a>, <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"> <a href="/users/cn449" class="username"><span class="user-red">cn449</span></a> - Rated range: ~ 1999 - The point values: 100-200-300-400-500-500-575 We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/ahc056">HACK TO THE FUTURE 2026 （AtCoder Heuristic Contest 056）</a>. - Contest URL: https://atcoder.jp/contests/ahc056 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251107T1900&p1=248 - Duration: 10 days - Writer: <a href="/users/wata_admin" class="username"><span class="user-unrated">wata_admin</span></a> - Staff: <img src="//img.atcoder.jp/assets/icon/crown_bronze.png"><a href="https://atcoder.jp/users/tsukammo?contestType=heuristic" class="username user-orange"><span class="user-orange">tsukammo</span></a>, <a href="https://atcoder.jp/users/kudryavka_chan?contestType=heuristic" class="username user-yellow"><span class="user-yellow">kudryavka_chan</span></a>, <a href="https://atcoder.jp/users/platinum?contestType=heuristic" class="username user-yellow"><span class="user-yellow">platinum</span></a>, <a href="https://atcoder.jp/users/ppputtyo?contestType=heuristic" class="username user-blue"><span class="user-blue">ppputtyo</span></a>, <a href="https://atcoder.jp/users/syunsuke?contestType=heuristic" class="username user-blue"><span class="user-blue">syunsuke</span></a> - Rated range: All (Heuristic Rating) This contest is one of the qualifying contests for <a href="https://atcoder.jp/posts/1394">AWTF 2026</a>. This contest will be held using the new judge system. For more details, please see <a href="https://atcoder.jp/posts/1580">this page</a>. We are looking forward to your participation!

We will hold <a href="https://atcoder.jp/contests/abc430">AtCoder Beginner Contest 430</a>. - Contest URL: https://atcoder.jp/contests/abc430 - Start Time: http://www.timeanddate.com/worldclock/fixedtime.html?iso=20251101T2100&p1=248 - Duration: 100 minutes - Writer: <img src="//img.atcoder.jp/assets/user/user-orange-1.png" class="user-rating-stage-m"><a href="/users/kyopro_friends" class="username"><span class="user-orange">kyopro_friends</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-2.png" class="user-rating-stage-m"><a href="/users/physics0523" class="username"><span class="user-orange">physics0523</span></a> - Tester: <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/sheyasutaka" class="username"><span class="user-orange">sheyasutaka</span></a>, <img src="//img.atcoder.jp/assets/user/user-orange-3.png" class="user-rating-stage-m"><a href="/users/Nyaan" class="username"><span class="user-orange">Nyaan</span></a> - Rated range: ~ 1999 - The point values: 100-250-300-400-450-500-625 We have updated the rating system. As these changes will apply starting with this contest, please see [this post](https://atcoder.jp/posts/1592) for details. We are looking forward to your participation!