2 January 2022

• 01:5001:50, 2 January 2022 diff hist +197 Mock AMC →Mock AMC 12

7 March 2021

• 00:4800:48, 7 March 2021 diff hist −6 2020 AIME II Problems/Problem 10 →Solution 6 (similar ideas to Solution 1, but faster)
• 00:4700:47, 7 March 2021 diff hist +2 2020 AIME II Problems/Problem 10 →Solution 6 (similar ideas to Solution 1, but faster)
• 00:4600:46, 7 March 2021 diff hist 0 2020 AIME II Problems/Problem 10 →Solution 6 (similar ideas to Solution 1, but faster)
• 00:4500:45, 7 March 2021 diff hist +2 2020 AIME II Problems/Problem 10 →Solution 5 (similar ideas to Solution 1, but faster)
• 00:4400:44, 7 March 2021 diff hist +1,101 2020 AIME II Problems/Problem 10 →Solution 5

13 February 2021

• 15:1815:18, 13 February 2021 diff hist +3 2021 AMC 12A Problems/Problem 17 →Solution 3 (short)
• 15:1815:18, 13 February 2021 diff hist +696 2021 AMC 12A Problems/Problem 17 →Solution 2 (One Pair of Similar Triangles, then Areas)
• 15:1615:16, 13 February 2021 diff hist +9 2021 AMC 12A Problems/Problem 23 →Solution 6
• 15:1515:15, 13 February 2021 diff hist +670 2021 AMC 12A Problems/Problem 23 →Solution 6 (Casework)
• 15:1415:14, 13 February 2021 diff hist +1,235 2021 AMC 12A Problems/Problem 22 →Solution 2 (Approximation)
• 15:1215:12, 13 February 2021 diff hist +557 2021 AMC 12B Problems/Problem 17 →Solution
• 15:1115:11, 13 February 2021 diff hist +4 2021 AMC 12B Problems/Problem 21 →Solution 2
• 15:1015:10, 13 February 2021 diff hist +1,114 2021 AMC 12B Problems/Problem 21 →Solution (Rough Approximation)
• 15:0815:08, 13 February 2021 diff hist +9 2021 AMC 12B Problems/Problem 18 →Solution 4 (funny observations)
• 15:0815:08, 13 February 2021 diff hist +1,770 2021 AMC 12B Problems/Problem 18 →Solution 3

27 February 2020

• 23:1323:13, 27 February 2020 diff hist +1 m 2016 USAMO Problems/Problem 4 →Solution 2 current

8 February 2020

• 19:3219:32, 8 February 2020 diff hist +2 2020 AMC 12B Problems/Problem 22 →Solution 5 (very legit)
• 19:3219:32, 8 February 2020 diff hist +2 2020 AMC 12B Problems/Problem 22 →Solution 4 (Bash)
• 19:3219:32, 8 February 2020 diff hist −1 2020 AMC 12B Problems/Problem 22 →Solution 4 (Bash)
• 19:3219:32, 8 February 2020 diff hist +156 2020 AMC 12B Problems/Problem 22 →Solution 4 (Bash)
• 19:2919:29, 8 February 2020 diff hist +13 2020 AMC 12B Problems/Problem 7 →Solution 3 (complex)
• 19:2919:29, 8 February 2020 diff hist +629 2020 AMC 12B Problems/Problem 7 →Solution 2
• 19:2719:27, 8 February 2020 diff hist +675 2020 AMC 12B Problems/Problem 7 →Solution

21 December 2019

• 20:2720:27, 21 December 2019 diff hist −5 2016 AIME II Problems/Problem 13 →Solution 3
• 20:2620:26, 21 December 2019 diff hist +5 2016 AIME II Problems/Problem 13 →Solution 3

15 March 2019

• 23:4723:47, 15 March 2019 diff hist +21 2019 AIME I Problems/Problem 5 →Solution 2
• 23:4623:46, 15 March 2019 diff hist +2 2019 AIME I Problems/Problem 5 →Solution 2
• 23:4623:46, 15 March 2019 diff hist +496 2019 AIME I Problems/Problem 5 →Solution

9 March 2019

• 16:0116:01, 9 March 2019 diff hist +498 1997 AHSME Problems/Problem 26 →Solution

8 March 2019

• 01:3601:36, 8 March 2019 diff hist +464 1993 AHSME Problems/Problem 29 →Solution

7 March 2019

• 01:1701:17, 7 March 2019 diff hist +320 2019 AMC 12B Problems/Problem 10 →Solution 2 (longer graph theory)

4 February 2019

• 00:4600:46, 4 February 2019 diff hist +1 2018 AMC 10A Problems/Problem 21 →Solution 6 (Cheating with Answer Choices)

3 February 2019

• 20:5620:56, 3 February 2019 diff hist +15 2015 AMC 12A Problems/Problem 21 →Solution 2
• 20:5220:52, 3 February 2019 diff hist +8 2015 AMC 12A Problems/Problem 21 →Solution 2

31 July 2018

• 19:4519:45, 31 July 2018 diff hist +118 m 2018 AIME II Problems/Problem 10 →Solution 2

6 June 2018

• 14:4214:42, 6 June 2018 diff hist −44 2018 AIME I Problems/Problem 15 →Problem 15

5 June 2018

• 20:1920:19, 5 June 2018 diff hist +206 USAMO historical results →USAMO Honorable Mentions
• 20:1720:17, 5 June 2018 diff hist +178 USAMO historical results →USAMO Winners

3 June 2018

• 19:1319:13, 3 June 2018 diff hist +24 USAMO historical results →USAMO Perfect Scorers

1 June 2018

• 00:1500:15, 1 June 2018 diff hist +2 AMC historical results →AMC 10A

30 April 2018

• 21:0521:05, 30 April 2018 diff hist +20 m 2018 AIME I Problems/Problem 12 →Solution 1

27 April 2018

• 18:4718:47, 27 April 2018 diff hist +1 2018 USAJMO Problems/Problem 6 →Solution
• 18:4718:47, 27 April 2018 diff hist +652 2018 USAJMO Problems/Problem 6 →Solution

20 April 2018

• 00:2100:21, 20 April 2018 diff hist −4 2018 AIME I Problems/Problem 11 →Solution 3 (Slight Bash)

19 April 2018

• 23:5923:59, 19 April 2018 diff hist +45 2018 AIME I Problems/Problem 6 →Solution 3
• 23:5823:58, 19 April 2018 diff hist −23 2018 AIME I Problems/Problem 6 →Solution 3
• 23:5623:56, 19 April 2018 diff hist −21 2018 AIME I Problems/Problem 6 →Solution 3
• 23:5523:55, 19 April 2018 diff hist +1 2018 AIME I Problems/Problem 6 →Solution 3
• 23:5423:54, 19 April 2018 diff hist +12 2018 AIME I Problems/Problem 6 →Solution 3