26 October 2025

• 17:4117:41, 26 October 2025 diff hist +173 AoPS Wiki:Competition ratings →Problem Solving Books for Introductory Students

11 October 2025

• 20:0520:05, 11 October 2025 diff hist +44 m 2025 AMC 12B Problems →Problem 10

29 September 2025

• 18:1518:15, 29 September 2025 diff hist +300 2022 AMC 10B Problems/Problem 21 →Solution 8

23 August 2025

• 17:2617:26, 23 August 2025 diff hist −165 2013 AMC 12B Problems/Problem 15 →Solution current
• 17:2517:25, 23 August 2025 diff hist −121 2013 AMC 12B Problems/Problem 15 →Problem

1 July 2025

• 23:0223:02, 1 July 2025 diff hist +65 2024 AMC 10B Problems/Problem 23 →Solution 4

19 April 2025

• 22:2722:27, 19 April 2025 diff hist −2 2025 AMC 8 Problems/Problem 25 →Solution 1
• 10:1510:15, 19 April 2025 diff hist −219 2003 AMC 10B Problems/Problem 25 →Solution 8 (Very very inefficient and slow) current

29 March 2025

• 19:3319:33, 29 March 2025 diff hist −266 2002 AMC 12A Problems/Problem 16 →Solution 6 (Easy expected value solution)

4 March 2025

• 19:1719:17, 4 March 2025 diff hist −1,837 2023 AMC 12B Problems/Problem 16 →Solution 1

23 February 2025

• 15:5915:59, 23 February 2025 diff hist +1 m AMC historical results →AMC 8 (January 22-28, 2025)

17 February 2025

• 20:1320:13, 17 February 2025 diff hist −792 m 2021 Fall AMC 12B Problems/Problem 22 →Solution 3 (Analytic Geometry)

16 February 2025

• 20:4120:41, 16 February 2025 diff hist −307 2019 AMC 10A Problems/Problem 7 →Solution 2

4 February 2025

• 23:5523:55, 4 February 2025 diff hist +11 m 2025 AMC 10A Problems →Problem 25

1 February 2025

• 16:5216:52, 1 February 2025 diff hist −95 2025 AMC 8 Problems/Problem 25 →Solution 1
• 16:5216:52, 1 February 2025 diff hist +97 2025 AMC 8 Problems/Problem 25 →Solution 1
• 15:1915:19, 1 February 2025 diff hist +150 2025 AMC 8 Problems/Problem 25 →Solution 1

30 January 2025

• 22:4122:41, 30 January 2025 diff hist +147 m 2009 AMC 12A Problems/Problem 14 →Solution current

3 January 2025

• 17:5717:57, 3 January 2025 diff hist +10 m AoPS Wiki:Competition ratings →Introduction to Number Theory by AoPS

10 December 2024

• 23:1623:16, 10 December 2024 diff hist 0 AoPS Wiki:Competition ratings →Intermediate Algebra by AoPS
• 23:1623:16, 10 December 2024 diff hist −6 AoPS Wiki:Competition ratings →Intermediate Counting & Probability by AoPS

28 November 2024

• 15:2215:22, 28 November 2024 diff hist 0 AoPS Wiki:Competition ratings →Prealgebra by AoPS
• 15:2015:20, 28 November 2024 diff hist 0 AoPS Wiki:Competition ratings →Introduction to Algebra by AoPS

25 November 2024

• 10:3810:38, 25 November 2024 diff hist 0 m AoPS Wiki:Competition ratings →Introduction to Geometry by AoPS
• 10:3810:38, 25 November 2024 diff hist +3 m AoPS Wiki:Competition ratings →Introduction to Number Theory by AoPS
• 10:3710:37, 25 November 2024 diff hist +1 AoPS Wiki:Competition ratings →Introduction to Counting and Probability by AoPS

18 June 2024

• 09:0009:00, 18 June 2024 diff hist +10 m 1987 AIME Problems/Problem 7 →Solution 1
• 09:0009:00, 18 June 2024 diff hist −10 m 1987 AIME Problems/Problem 7 →Solution 1

12 June 2024

• 16:1416:14, 12 June 2024 diff hist +129 1984 AIME Problems/Problem 7 →Solution 4 (Not really a solution, DON'T DO THIS ON A REAL TEST)

8 June 2024

• 12:4912:49, 8 June 2024 diff hist −800 2002 AMC 12B Problems/Problem 18 →Solution

1 May 2024

• 20:3020:30, 1 May 2024 diff hist +10 1977 AHSME Problems/Problem 15 →Solution

19 April 2024

• 22:4622:46, 19 April 2024 diff hist +49 m 1958 AHSME Problems/Problem 42 →Solution

18 April 2024

• 18:5918:59, 18 April 2024 diff hist −1,833 m 2000 AMC 12 Problems/Problem 24 →Solution 1

1 April 2024

• 20:1020:10, 1 April 2024 diff hist +30 2012 AMC 12B Problems/Problem 10 →See Also

31 March 2024

• 19:0819:08, 31 March 2024 diff hist +35 AoPS Wiki:Competition ratings →Problem Solving Books for Intermediate Students
• 19:0119:01, 31 March 2024 diff hist +128 AoPS Wiki:Competition ratings →Problem Solving Books for Introductory Students
• 18:5518:55, 31 March 2024 diff hist +256 AoPS Wiki:Competition ratings →AMC 12
• 18:5218:52, 31 March 2024 diff hist +1 m AoPS Wiki:Competition ratings →Scale

19 March 2024

• 20:3020:30, 19 March 2024 diff hist +31 AoPS Wiki:Competition ratings →Introduction to Counting and Probability by AoPS
• 20:3020:30, 19 March 2024 diff hist +11 AoPS Wiki:Competition ratings /* Introduction to Algebra by AoPS *
• 20:3020:30, 19 March 2024 diff hist +22 AoPS Wiki:Competition ratings →Introduction to Algebra by AoPS

15 March 2024

• 18:0718:07, 15 March 2024 diff hist −553 1976 AHSME Problems/Problem 8 →Solution
• 18:0118:01, 15 March 2024 diff hist −536 2017 AMC 10A Problems/Problem 15 →Solution 5

8 March 2024

• 23:3123:31, 8 March 2024 diff hist +1 2016 AIME II Problems/Problem 2 →Solution 1
• 23:0623:06, 8 March 2024 diff hist −969 2011 AMC 10A Problems/Problem 21 →Solution 1
• 19:4119:41, 8 March 2024 diff hist −542 1995 AHSME Problems/Problem 17 →Solution 2

7 March 2024

• 22:0622:06, 7 March 2024 diff hist −861 2004 AMC 10B Problems →Problem 20
• 21:4821:48, 7 March 2024 diff hist −1,741 2001 AMC 12 Problems/Problem 24 →Solution 1

4 March 2024

• 19:0719:07, 4 March 2024 diff hist −933 2005 AMC 12A Problems/Problem 14 →Solution 2 (Alcumus)

1 March 2024

• 00:2500:25, 1 March 2024 diff hist −379 2001 AMC 12 Problems/Problem 3 →Solution 1