Repeat Evolution

840. Magic Squares In Grid

2 attempts over 508 days. This page compares how the solution size, thinking trace, and stuck markers changed between posts.

2 attempts

508 days apart

-10 line delta

6 best lines

0 thought lines

0 stuck attempts

Repeat lab Latest post Back to library LeetCode

Timeline Shape

Bars are normalized inside this problem, so the widest bar is the largest attempt in that metric.

Each card is a daily post, with local deltas from the previous attempt.

Attempt 1 · 09.08.2024

medium

Solution 16 lines

Thoughts 0 lines

standard kotlin

Count 9x9 1..9 equal row col diag sum subgrids

Full post LeetCode

Attempt 2 · 30.12.2025

medium

Solution 6 lines

Thoughts 0 lines

tiny kotlin

508 days later lines -10 chars -293 thoughts 0

Count 'magic' 3x3 squares

Full post LeetCode

Compact generated readout from the first and latest attempts.

Solution size compressed

-10 lines, -293 chars.

Thinking trace steady

0 lines between first and latest attempt.

Best snapshot 30.12.2025

6 lines, 261 chars.

Honesty markers 0 stuck

0 stuck attempts, 0 one-liner attempts.