AdventOfCode'2015 Custom Leaderboard


This is a version of a leaderboard which counts only a time between receiving first and second star (only compares time spend on a task number two in any certain day).
The leaderboard therefore is not connected to the time participants started their first task, which makes it possible to get places even if you can not start at midnight EST.

This leaderboard differentiate between participants who solve tasks using their own coding and problem-solving skills and those who rely heavily on AI tools for rapid automated solutions. While the latter group is excluded from this leaderboard by default, their results can still be viewed via a provided link.



[show heavy AI users]

YEARS: 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025



Last Updated: 2025-12-21 07:05:44 (updates once in 15m)

#1 (409) =====> Alexxz (42*)
#2 (240) =====> anight (27*)
#3 (185) =====> Alexey Rybak (20*)
#4 (127) =====> Stanislav Yaglo (15*)
#5 (34) =====> yabalaban (4*)
#6 (33) =====> Valeriy Kobzar (4*)
#7 (14) =====> Valya Unixway (2*)

Day 21:


#1 Alexxz +20 (t2 solved 0 days 00:01:47 after t1 on 2024-12-08 20:36:53)

Day 20:


#1 Alexxz +20 (t2 solved 1828 days 21:44:36 after t1 on 2024-12-07 21:17:19)

Day 19:


#1 Alexxz +20 (t2 solved 0 days 01:33:15 after t1 on 2019-12-05 23:04:33)

Day 18:


#1 Alexxz +20 (t2 solved 0 days 02:31:32 after t1 on 2015-12-20 21:29:22)

Day 17:


#1 Alexxz +20 (t2 solved 0 days 00:07:38 after t1 on 2015-12-20 11:34:43)

Day 16:


#1 Alexxz +20 (t2 solved 0 days 01:15:42 after t1 on 2015-12-19 20:15:01)

Day 15:


#1 Alexxz +20 (t2 solved 0 days 00:07:22 after t1 on 2015-12-19 18:45:27)

Day 14:


#1 Alexxz +20 (t2 solved 0 days 00:17:28 after t1 on 2015-12-18 06:24:05)

Day 13:


#1 anight +20 (t2 solved 0 days 00:02:26 after t1 on 2025-06-04 14:59:21)
#2 Alexxz +19 (t2 solved 0 days 00:05:04 after t1 on 2015-12-18 05:46:22)

Day 12:


#1 anight +20 (t2 solved 0 days 00:02:01 after t1 on 2025-06-03 09:33:51)
#2 Alexxz +19 (t2 solved 0 days 00:29:08 after t1 on 2015-12-17 21:56:53)

Day 11:


#1 Alexxz +20 (t2 solved 0 days 00:01:05 after t1 on 2015-12-17 21:18:16)
#2 anight +19 (t2 solved 4 days 23:13:44 after t1 on 2025-05-15 00:01:07)

Day 10:


#1 Alexey Rybak +20 (t2 solved 0 days 00:00:52 after t1 on 2023-12-06 04:36:36)
#2 anight +19 (t2 solved 0 days 00:01:31 after t1 on 2025-05-07 11:05:04)
#3 Alexxz +18 (t2 solved 0 days 00:02:06 after t1 on 2015-12-17 20:45:04)

Day 9:


#1 Alexxz +20 (t2 solved 0 days 00:01:19 after t1 on 2015-12-17 19:20:34)
#2 anight +19 (t2 solved 0 days 00:01:59 after t1 on 2025-03-12 01:22:50)
#3 Alexey Rybak +18 (t2 solved 0 days 00:03:03 after t1 on 2023-12-06 03:58:27)

Day 8:


#1 Alexey Rybak +20 (t2 solved 0 days 00:04:43 after t1 on 2023-12-04 22:54:31)
#2 Alexxz +19 (t2 solved 0 days 00:05:02 after t1 on 2015-12-17 18:29:02)
#3 anight +18 (t2 solved 0 days 00:05:30 after t1 on 2025-03-12 00:20:03)

Day 7:


#1 Alexxz +20 (t2 solved 0 days 00:03:01 after t1 on 2015-12-17 18:12:41)
#2 Alexey Rybak +19 (t2 solved 0 days 00:04:40 after t1 on 2023-12-04 22:24:43)
#3 Stanislav Yaglo +18 (t2 solved 0 days 00:04:56 after t1 on 2024-02-06 21:32:43)
#4 anight +17 (t2 solved 0 days 00:05:35 after t1 on 2025-03-11 23:54:30)

Day 6:


#1 anight +20 (t2 solved 0 days 00:03:31 after t1 on 2025-03-11 22:47:45)
#2 Alexxz +19 (t2 solved 0 days 00:03:37 after t1 on 2015-12-08 15:38:22)
#3 Stanislav Yaglo +18 (t2 solved 0 days 00:05:18 after t1 on 2024-02-06 20:00:32)
#4 Alexey Rybak +17 (t2 solved 0 days 00:08:33 after t1 on 2023-12-03 07:24:07)

Day 5:


#1 Alexey Rybak +20 (t2 solved 0 days 00:02:28 after t1 on 2023-12-02 05:39:44)
#2 Alexxz +19 (t2 solved 0 days 00:16:02 after t1 on 2015-12-07 15:32:23)
#3 Stanislav Yaglo +18 (t2 solved 0 days 00:21:21 after t1 on 2024-02-06 19:11:01)
#4 anight +17 (t2 solved 0 days 01:12:43 after t1 on 2025-03-11 22:17:47)

Day 4:


#1 Alexxz +20 (t2 solved 0 days 00:00:50 after t1 on 2015-12-04 09:48:38)
#2 Alexey Rybak +19 (t2 solved 0 days 00:01:16 after t1 on 2023-12-02 05:29:56)
#3 anight +18 (t2 solved 0 days 00:01:17 after t1 on 2025-03-11 16:45:07)
#4 Stanislav Yaglo +17 (t2 solved 0 days 00:14:31 after t1 on 2024-02-06 18:40:52)

Day 3:


#1 Stanislav Yaglo +20 (t2 solved 0 days 00:04:11 after t1 on 2023-12-10 03:10:50)
#2 Alexey Rybak +19 (t2 solved 0 days 00:04:16 after t1 on 2023-12-02 04:29:00)
#3 anight +18 (t2 solved 0 days 00:04:21 after t1 on 2025-03-11 16:34:00)
#4 Alexxz +17 (t2 solved 0 days 00:10:41 after t1 on 2015-12-04 10:08:50)

Day 2:


#1 anight +20 (t2 solved 0 days 00:03:42 after t1 on 2025-03-10 19:05:06)
#2 Alexxz +19 (t2 solved 0 days 00:04:33 after t1 on 2015-12-04 10:20:05)
#3 Stanislav Yaglo +18 (t2 solved 0 days 00:08:18 after t1 on 2023-12-10 02:50:45)
#4 Valeriy Kobzar +17 (t2 solved 0 days 00:14:36 after t1 on 2023-12-21 01:40:34)
#5 Alexey Rybak +16 (t2 solved 0 days 00:15:00 after t1 on 2023-12-02 04:13:41)
#6 yabalaban +15 (t2 solved 0 days 00:18:33 after t1 on 2023-12-26 21:37:38)

Day 1:


#1 Alexxz +20 (t2 solved 0 days 00:01:14 after t1 on 2015-12-04 10:28:15)
#2 yabalaban +19 (t2 solved 0 days 00:04:27 after t1 on 2023-12-26 21:06:42)
#3 Stanislav Yaglo +18 (t2 solved 0 days 00:06:10 after t1 on 2023-12-10 02:29:05)
#4 Alexey Rybak +17 (t2 solved 0 days 00:10:38 after t1 on 2023-12-01 23:55:55)
#5 Valeriy Kobzar +16 (t2 solved 0 days 00:13:06 after t1 on 2023-12-21 01:01:15)
#6 anight +15 (t2 solved 0 days 03:47:21 after t1 on 2025-03-10 18:45:10)
#7 Valya Unixway +14 (t2 solved 31 days 02:36:41 after t1 on 2025-04-10 17:25:57)