All Contributions

Complete record of every solution change. Each contribution is peer-reviewed.

Contribute

20708 contributions

2009 problems

104 contributors

solved· 1.1.23

1.1.23 edit

astrosander September 20, 2026 at 07:14 AM

#20856

less than a minute between problems

solved· 1.1.22

1.1.22 edit

astrosander September 20, 2026 at 07:13 AM

#20855

less than a minute between problems

solved· 1.1.21

1.1.21 edit

astrosander September 20, 2026 at 07:13 AM

#20854

less than a minute between problems

solved· 1.1.20

1.1.20 edit

astrosander September 20, 2026 at 07:13 AM

#20853

less than a minute between problems

solved· 1.1.19

1.1.19 edit

astrosander September 20, 2026 at 07:13 AM

#20852

less than a minute between problems

solved· 1.1.18

1.1.18 edit

astrosander September 20, 2026 at 07:13 AM

#20851

less than a minute between problems

solved· 1.1.17 in 7 seconds

1.1.17 edit

astrosander September 20, 2026 at 07:12 AM

#20850

1.1.17 edit

astrosander September 20, 2026 at 07:12 AM

#20849

less than a minute between problems

solved· 1.1.16 in 10 seconds

1.1.16 edit

astrosander September 20, 2026 at 07:12 AM

#20848

1.1.16 edit

astrosander September 20, 2026 at 07:12 AM

#20847

less than a minute between problems

solved· 1.1.15 in 8 seconds

1.1.15 edit

astrosander September 20, 2026 at 07:11 AM

#20846

1.1.15 edit

astrosander September 20, 2026 at 07:11 AM

#20845

less than a minute between problems

solved· 1.1.13 in 16 seconds

1.1.13 edit

astrosander September 20, 2026 at 07:11 AM

#20844

1.1.13 edit

astrosander September 20, 2026 at 07:11 AM

#20843

less than a minute between problems

solved· 1.1.10

1.1.10 edit

astrosander September 20, 2026 at 07:10 AM

#20842

less than a minute between problems

solved· 1.1.9

1.1.9 edit

astrosander September 20, 2026 at 07:10 AM

#20841

less than a minute between problems

solved· 1.1.8

1.1.8 edit

astrosander September 20, 2026 at 07:10 AM

#20840

less than a minute between problems

solved· 1.1.5

1.1.5 edit

astrosander September 20, 2026 at 07:10 AM

#20839

less than a minute between problems

solved· 1.1.4

1.1.4 edit

astrosander September 20, 2026 at 07:10 AM

#20838

less than a minute between problems

solved· 1.1.1

1.1.1 edit

astrosander September 20, 2026 at 07:09 AM

#20837

less than a minute between problems

solved· 5.4.17

5.4.17 edit

astrosander September 20, 2026 at 07:09 AM

#20836

3 hours 38 minutes between problems

solved· 14.3.3

14.3.3 edit

astrosander September 20, 2026 at 03:30 AM

#20835

6 hours 15 minutes between problems

solved· 2.6.39

2.6.39 edit

Daniyar September 19, 2026 at 09:15 PM

#20834

9 hours 47 minutes between problems

solved· 6.6.27

6.6.27 new solution

jzmicer September 19, 2026 at 11:28 AM

#20833

9 hours 50 minutes between problems

solved· 7.3.1 in 4 minutes 48 seconds

7.3.1 edit

Tete September 19, 2026 at 01:38 AM

#20832

7.3.1 edit

Tete September 19, 2026 at 01:33 AM

#20831

6 hours 5 minutes between problems

solved· 14.3.6

14.3.6 edit

emixter September 18, 2026 at 07:28 PM

#20830

1 hour 10 minutes between problems

solved· 2.6.20

2.6.20 edit

Daniyar September 18, 2026 at 06:17 PM

#20829

38 minutes between problems

solved· 14.3.6

14.3.6 new solution

emixter September 18, 2026 at 05:39 PM

#20828

8 hours 18 minutes between problems

solved· 14.4.26 in 28 minutes 18 seconds

14.4.26 edit

emixter September 18, 2026 at 09:20 AM

#20827

14.4.26 edit

emixter September 18, 2026 at 09:20 AM

#20826

14.4.26 new solution

emixter September 18, 2026 at 08:52 AM

#20825

1 hour 19 minutes between problems

solved· 8.2.19 in 25 minutes 14 seconds

8.2.19 edit

emixter September 18, 2026 at 07:33 AM

#20824

8.2.19 new solution

emixter September 18, 2026 at 07:07 AM

#20823

4 hours 16 minutes between problems

solved· 8.2.27 in 19 minutes 17 seconds

8.2.27 edit

Tete September 18, 2026 at 02:51 AM

#20822

8.2.27 edit

Tete September 18, 2026 at 02:35 AM

#20821

8.2.27 new solution

Tete September 18, 2026 at 02:32 AM

#20820

7 hours 36 minutes between problems

solved· 14.3.27

14.3.27 edit

emixter September 17, 2026 at 06:55 PM

#20819

3 hours 46 minutes between problems

solved· 2.7.19

2.7.19 comment

emixter September 17, 2026 at 03:09 PM

thread

2.7.19 comment

Valter September 17, 2026 at 02:28 PM

thread

2.7.19 comment

vasiliy_vasilevich September 17, 2026 at 02:10 PM

thread

1 hour 36 minutes between problems

solved· 14.3.27

14.3.27 edit

marthasg._ September 17, 2026 at 01:33 PM

#20818

24 minutes between problems

solved· 1.1.19 in 6 minutes 53 seconds

1.1.19 edit

Valter September 17, 2026 at 01:08 PM

#20817

1.1.19 edit

Valter September 17, 2026 at 01:01 PM

#20816

1 hour 19 minutes between problems

solved· 13.3.10 in 2 minutes 38 seconds

13.3.10 edit

Tete September 17, 2026 at 11:41 AM

#20815

13.3.10 new solution

Tete September 17, 2026 at 11:39 AM

#20814

5 hours 18 minutes between problems

solved· 2.3.42 in 2 minutes 28 seconds

2.3.42 edit

Tete September 17, 2026 at 06:21 AM

#20813

2.3.42 edit

Tete September 17, 2026 at 06:18 AM

#20812

2 hours 21 minutes between problems

solved· 8.4.5 in 2 minutes 49 seconds

8.4.5 edit

Tete September 17, 2026 at 03:56 AM

#20811

8.4.5 edit

Tete September 17, 2026 at 03:53 AM

#20810

1 hour 5 minutes between problems

solved· 14.3.27

14.3.27 new solution

marthasg._ September 17, 2026 at 02:48 AM

#20809

7 hours 56 minutes between problems

solved· 14.2.15 in 46 seconds

14.2.15 edit

Valter September 16, 2026 at 06:52 PM

#20808

14.2.15 edit

Valter September 16, 2026 at 06:51 PM

#20807

20 minutes between problems

solved· 5.3.11

5.3.11 edit

Valter September 16, 2026 at 06:31 PM

#20806

1 minute between problems

solved· 14.2.15 in 55 seconds

14.2.15 edit

Valter September 16, 2026 at 06:29 PM

#20805

14.2.15 edit

Valter September 16, 2026 at 06:28 PM

#20804

less than a minute between problems

solved· 5.3.11 in 1 minute 46 seconds

5.3.11 edit

Valter September 16, 2026 at 06:28 PM

#20803

5.3.11 edit

Valter September 16, 2026 at 06:27 PM

#20802

5.3.11 edit

Valter September 16, 2026 at 06:26 PM

#20801

5.3.11 new solution

Valter September 16, 2026 at 06:26 PM

#20800

1 minute between problems

solved· 14.2.15 in 2 minutes 40 seconds

14.2.15 edit

Valter September 16, 2026 at 06:24 PM

#20799

14.2.15 new solution

Valter September 16, 2026 at 06:22 PM

#20798

1 hour 24 minutes between problems

solved· 7.2.11 in 9 minutes 30 seconds

7.2.11 edit

Valter September 16, 2026 at 04:57 PM

#20797

7.2.11 edit

Valter September 16, 2026 at 04:57 PM

#20796

7.2.11 edit

Valter September 16, 2026 at 04:55 PM

#20795

7.2.11 new solution

Valter September 16, 2026 at 04:48 PM

#20794

52 minutes between problems

solved· 3.6.20

3.6.20 edit

emixter September 16, 2026 at 03:55 PM

#20793

20 minutes between problems

solved· 14.4.7

14.4.7 edit

marthasg._ September 16, 2026 at 03:35 PM

#20792

24 minutes between problems

solved· 7.2.10

7.2.10 comment

Valter September 16, 2026 at 03:10 PM

thread

3 minutes between problems

solved· 14.4.7

14.4.7 new solution

marthasg._ September 16, 2026 at 03:07 PM

#20791

17 minutes between problems

solved· 7.2.10 in 10 minutes 31 seconds

7.2.10 edit

emixter September 16, 2026 at 02:49 PM

#20790

7.2.10 edit

emixter September 16, 2026 at 02:39 PM

#20789

44 minutes between problems

solved· 7.2.9

7.2.9 comment

igor September 16, 2026 at 01:54 PM

thread

2 minutes between problems

solved· 14.4.31

14.4.31 edit

Valter September 16, 2026 at 01:52 PM

#20788

less than a minute between problems

solved· 7.2.9

7.2.9 edit

igor September 16, 2026 at 01:52 PM

#20787

11 minutes between problems

solved· 4.2.4 in 7 minutes 15 seconds

4.2.4 edit

Tete September 16, 2026 at 01:40 PM

#20786

4.2.4 edit

Tete September 16, 2026 at 01:32 PM

#20785

1 hour 21 minutes between problems

solved· 7.2.9 in 1 hour 29 minutes

7.2.9 comment

emixter September 16, 2026 at 01:19 PM

thread

7.2.9 comment

Valter September 16, 2026 at 01:06 PM

thread

7.2.9 comment

igor September 16, 2026 at 01:00 PM

thread

7.2.9 edit

Valter September 16, 2026 at 12:11 PM

#20784

7.2.9 edit

Valter September 16, 2026 at 12:08 PM

#20783

7.2.9 edit

Valter September 16, 2026 at 10:58 AM

#20782

7.2.9 edit

Valter September 16, 2026 at 10:42 AM

#20781

2 minutes between problems

solved· 8.2.1 in 5 minutes 44 seconds

8.2.1 edit

Valter September 16, 2026 at 10:40 AM

#20780

8.2.1 edit

Valter September 16, 2026 at 10:39 AM

#20779

8.2.1 edit

Valter September 16, 2026 at 10:36 AM

#20778

8.2.1 edit

Valter September 16, 2026 at 10:36 AM

#20777

8.2.1 edit

Valter September 16, 2026 at 10:34 AM

#20776

8.2.1 edit

Valter September 16, 2026 at 10:34 AM

#20775

22 minutes between problems

solved· 7.2.7 in 30 seconds

7.2.7 edit

Valter September 16, 2026 at 10:11 AM

#20774

7.2.7 edit

Valter September 16, 2026 at 10:11 AM

#20773

3 minutes between problems

solved· 7.2.6 in 43 seconds

7.2.6 edit

Valter September 16, 2026 at 10:07 AM

#20772

7.2.6 edit

Valter September 16, 2026 at 10:06 AM

#20771

3 minutes between problems

solved· 14.4.31 in 43 minutes 58 seconds

14.4.31 edit

marthasg._ September 16, 2026 at 10:03 AM

#20770

14.4.31 new solution

marthasg._ September 16, 2026 at 09:19 AM

#20769

6 hours 21 minutes between problems

solved· 3.6.20 in 24 minutes 37 seconds

3.6.20 edit

igor September 16, 2026 at 02:58 AM

#20768

3.6.20 new solution

igor September 16, 2026 at 02:33 AM

#20767

4 minutes between problems

solved· 3.6.26 in 16 minutes 29 seconds

3.6.26 edit

igor September 16, 2026 at 02:29 AM

#20766

3.6.26 new solution

igor September 16, 2026 at 02:12 AM

#20765

5 hours 18 minutes between problems

solved· 7.2.10 in 1 hour 44 minutes

7.2.10 edit

Valter September 15, 2026 at 08:54 PM

#20764

7.2.10 edit

Valter September 15, 2026 at 08:53 PM

#20763

7.2.10 comment

Valter September 15, 2026 at 07:39 PM

thread

7.2.10 comment

Valter September 15, 2026 at 07:35 PM

thread

7.2.10 edit

Valter September 15, 2026 at 07:33 PM

#20762

7.2.10 comment

emixter September 15, 2026 at 07:31 PM

thread

7.2.10 comment

Valter September 15, 2026 at 07:30 PM

thread

7.2.10 comment

emixter September 15, 2026 at 07:21 PM

thread

7.2.10 edit

Valter September 15, 2026 at 07:10 PM

#20761

less than a minute between problems

solved· 5.8.9

5.8.9 edit

emixter September 15, 2026 at 07:09 PM

#20760

less than a minute between problems

solved· 7.2.10 in 17 minutes 45 seconds

7.2.10 edit

Valter September 15, 2026 at 07:09 PM

#20759

7.2.10 edit

Valter September 15, 2026 at 07:02 PM

#20758

7.2.10 new solution

Valter September 15, 2026 at 06:51 PM

#20757

35 minutes between problems

solved· 5.8.9

5.8.9 new solution

emixter September 15, 2026 at 06:16 PM

#20756

1 hour 50 minutes between problems

solved· 11.4.13 in 8 minutes 47 seconds

11.4.13 edit

Tete September 15, 2026 at 04:26 PM

#20755

11.4.13 edit

Tete September 15, 2026 at 04:17 PM

#20754

2 hours 53 minutes between problems

solved· 10.1.10

10.1.10 edit

jzmicer September 15, 2026 at 01:24 PM

#20753

1 hour 6 minutes between problems

solved· 3.6.19

3.6.19 edit

igor September 15, 2026 at 12:18 PM

#20752

2 hours 7 minutes between problems

solved· 8.1.11

8.1.11 edit

igor September 15, 2026 at 10:10 AM

#20751

20 minutes between problems

solved· 3.6.21 in 11 minutes 17 seconds

3.6.21 edit

igor September 15, 2026 at 09:49 AM

#20750

3.6.21 new solution

igor September 15, 2026 at 09:38 AM

#20749

18 minutes between problems

solved· 3.6.22 in 19 minutes 42 seconds

3.6.22 edit

igor September 15, 2026 at 09:20 AM

#20748

3.6.22 edit

igor September 15, 2026 at 09:16 AM

#20747

3.6.22 new solution

igor September 15, 2026 at 09:00 AM

#20746

1 hour 1 minute between problems

solved· 5.4.17 in 3 minutes 39 seconds

5.4.17 edit

albert September 15, 2026 at 07:58 AM

#20745

5.4.17 edit

albert September 15, 2026 at 07:54 AM

#20744

8 minutes between problems

solved· 3.6.24 in 2 minutes 17 seconds

3.6.24 edit

albert September 15, 2026 at 07:46 AM

#20743

3.6.24 edit

albert September 15, 2026 at 07:46 AM

#20742

3.6.24 edit

albert September 15, 2026 at 07:44 AM

#20741

10 minutes between problems

solved· 3.5.30 in 30 minutes 12 seconds

3.5.30 edit

albert September 15, 2026 at 07:34 AM

#20740

3.5.30 edit

albert September 15, 2026 at 07:32 AM

#20739

3.5.30 edit

albert September 15, 2026 at 07:31 AM

#20738

3.5.30 edit

albert September 15, 2026 at 07:28 AM

#20737

3.5.30 edit

albert September 15, 2026 at 07:21 AM

#20736

3.5.30 edit

albert September 15, 2026 at 07:03 AM

#20735

7 hours 6 minutes between problems

solved· 13.2.9

13.2.9 edit

Tete September 14, 2026 at 11:57 PM

#20734

2 minutes between problems

solved· 2.6.49 in 3 minutes 13 seconds

2.6.49 edit

Tete September 14, 2026 at 11:54 PM

#20733

2.6.49 edit

Tete September 14, 2026 at 11:51 PM

#20732

3 hours 35 minutes between problems

solved· 10.1.10 in 9 hours 35 minutes

10.1.10 edit

astrosander September 14, 2026 at 08:16 PM

#20731

10.1.10 edit

Valter September 14, 2026 at 11:02 AM

#20730

10.1.10 edit

Valter September 14, 2026 at 11:01 AM

#20729

10.1.10 comment

Valter September 14, 2026 at 10:59 AM

thread

10.1.10 edit

Valter September 14, 2026 at 10:40 AM

#20728

1 hour 27 minutes between problems

solved· 13.2.9 in 4 minutes 13 seconds

13.2.9 edit

Tete September 14, 2026 at 09:12 AM

#20727

13.2.9 edit

Tete September 14, 2026 at 09:08 AM

#20726

24 minutes between problems

solved· 3.7.7 in 12 minutes 5 seconds

3.7.7 edit

igor September 14, 2026 at 08:44 AM

#20725

3.7.7 new solution

igor September 14, 2026 at 08:31 AM

#20724

1 hour 11 minutes between problems

solved· 10.1.10

10.1.10 comment

Valter September 14, 2026 at 07:20 AM

thread

10.1.10 comment

jzmicer September 14, 2026 at 07:17 AM

thread

7 minutes between problems

solved· 3.8.19 in 1 hour 2 minutes

3.8.19 edit

igor September 14, 2026 at 07:12 AM

#20723

3.8.19 new solution

igor September 14, 2026 at 06:10 AM

#20722

44 minutes between problems

solved· 3.8.18 in 46 minutes 4 seconds

3.8.18 edit

igor September 14, 2026 at 05:26 AM

#20721

3.8.18 edit

igor September 14, 2026 at 05:25 AM

#20720

3.8.18 new solution

igor September 14, 2026 at 04:40 AM

#20719

54 minutes between problems

solved· 2.5.21 in 3 minutes 55 seconds

2.5.21 edit

Tete September 14, 2026 at 03:45 AM

#20718

2.5.21 edit

Tete September 14, 2026 at 03:41 AM

#20717

1 hour 57 minutes between problems

solved· 13.1.8

13.1.8 edit

Tete September 14, 2026 at 01:44 AM

#20716

2 minutes between problems

solved· 3.6.24

3.6.24 edit

albert September 14, 2026 at 01:41 AM

#20715

less than a minute between problems

solved· 13.1.8 in 4 minutes 36 seconds

13.1.8 edit

Tete September 14, 2026 at 01:41 AM

#20714

13.1.8 edit

Tete September 14, 2026 at 01:36 AM

#20713

5 hours 39 minutes between problems

solved· 3.8.17

3.8.17 edit

igor September 13, 2026 at 07:57 PM

#20712

22 minutes between problems

solved· 2.2.34

2.2.34 edit

Daniyar September 13, 2026 at 07:34 PM

#20711

8 minutes between problems

solved· 3.8.17

3.8.17 new solution

igor September 13, 2026 at 07:25 PM

#20710

2 minutes between problems

solved· 3.8.14

3.8.14 edit

igor September 13, 2026 at 07:23 PM

#20709

25 minutes between problems

solved· 10.1.13 in 2 minutes 20 seconds

10.1.13 edit

Valter September 13, 2026 at 06:58 PM

#20708

10.1.13 edit

Valter September 13, 2026 at 06:56 PM

#20707

1 minute between problems

solved· 10.1.11 in 23 seconds

10.1.11 edit

Valter September 13, 2026 at 06:55 PM

#20706

10.1.11 edit

Valter September 13, 2026 at 06:54 PM

#20705

1 minute between problems

solved· 10.1.10 in 2 minutes 14 seconds

10.1.10 edit

Valter September 13, 2026 at 06:53 PM

#20704

10.1.10 edit

Valter September 13, 2026 at 06:52 PM

#20703

10.1.10 edit

Valter September 13, 2026 at 06:51 PM

#20702

16 minutes between problems

solved· 10.1.9 in 41 seconds

10.1.9 edit

Valter September 13, 2026 at 06:35 PM

#20701

10.1.9 edit

Valter September 13, 2026 at 06:34 PM

#20700

1 minute between problems

solved· 10.1.8 in 44 seconds

10.1.8 edit

Valter September 13, 2026 at 06:33 PM

#20699

10.1.8 edit

Valter September 13, 2026 at 06:32 PM

#20698

7 minutes between problems

solved· 10.1.6 in 10 seconds

10.1.6 edit

Valter September 13, 2026 at 06:24 PM

#20697

10.1.6 edit

Valter September 13, 2026 at 06:24 PM

#20696

3 minutes between problems

solved· 10.1.5 in 10 seconds

10.1.5 edit

Valter September 13, 2026 at 06:21 PM

#20695

10.1.5 edit

Valter September 13, 2026 at 06:21 PM

#20694

1 minute between problems

solved· 10.1.4 in 10 seconds

10.1.4 edit

Valter September 13, 2026 at 06:19 PM

#20693

10.1.4 edit

Valter September 13, 2026 at 06:19 PM

#20692

13 minutes between problems

solved· 3.6.24 in 16 minutes 30 seconds

3.6.24 edit

albert September 13, 2026 at 06:06 PM

#20691

3.6.24 edit

albert September 13, 2026 at 05:49 PM

#20690

57 minutes between problems

solved· 3.8.16

3.8.16 edit

igor September 13, 2026 at 04:52 PM

#20689

9 minutes between problems

solved· 1.3.10

1.3.10 edit

Valter September 13, 2026 at 04:42 PM

#20688

13 minutes between problems

solved· 3.8.16

3.8.16 new solution

igor September 13, 2026 at 04:29 PM

#20687

45 minutes between problems

solved· 1.3.10

1.3.10 edit

Daniyar September 13, 2026 at 03:43 PM

#20686

2 hours 40 minutes between problems

solved· 3.8.13 in 33 minutes 36 seconds

3.8.13 edit

igor September 13, 2026 at 01:02 PM

#20685

3.8.13 new solution

igor September 13, 2026 at 12:28 PM

#20684

3 hours 3 minutes between problems

solved· 11.1.13 in 3 minutes 39 seconds

11.1.13 edit

Tete September 13, 2026 at 09:25 AM

#20683

11.1.13 edit

Tete September 13, 2026 at 09:21 AM

#20682

7 hours 8 minutes between problems

solved· 5.5.18 in 4 minutes 2 seconds

5.5.18 edit

Tete September 13, 2026 at 02:13 AM

#20681

5.5.18 edit

Tete September 13, 2026 at 02:09 AM

#20680

9 hours 31 minutes between problems

solved· 6.5.18 in 4 minutes 19 seconds

6.5.18 edit

Tete September 12, 2026 at 04:37 PM

#20679

6.5.18 edit

Tete September 12, 2026 at 04:33 PM

#20678

10 hours 30 minutes between problems

solved· 6.5.23 in 1 minute 57 seconds

6.5.23 edit

Tete September 12, 2026 at 06:02 AM

#20677

6.5.23 edit

Tete September 12, 2026 at 06:01 AM

#20676

11 hours 21 minutes between problems

solved· 3.7.11 in 48 minutes 26 seconds

3.7.11 edit

emixter September 11, 2026 at 06:39 PM

#20675

3.7.11 new solution

emixter September 11, 2026 at 05:50 PM

#20674

1 hour 21 minutes between problems

solved· 4.2.16 in 3 minutes 2 seconds

4.2.16 edit

Tete September 11, 2026 at 04:29 PM

#20673

4.2.16 edit

Tete September 11, 2026 at 04:25 PM

#20672

6 hours 24 minutes between problems

solved· 13.4.25 in 4 minutes 52 seconds

13.4.25 edit

Valter September 11, 2026 at 10:01 AM

#20671

13.4.25 edit

Valter September 11, 2026 at 09:56 AM

#20670

2 hours 45 minutes between problems

solved· 11.1.20 in 4 minutes 21 seconds

11.1.20 edit

Tete September 11, 2026 at 07:11 AM

#20669

11.1.20 edit

Tete September 11, 2026 at 07:06 AM

#20668

3 hours 4 minutes between problems

solved· 13.1.5 in 1 hour 27 minutes

13.1.5 edit

Tete September 11, 2026 at 04:02 AM

#20667

13.1.5 edit

Tete September 11, 2026 at 02:37 AM

#20666

13.1.5 edit

Tete September 11, 2026 at 02:34 AM

#20665

6 hours 4 minutes between problems

solved· 13.4.25 in 7 minutes 43 seconds

13.4.25 edit

Valter September 10, 2026 at 08:30 PM

#20664

13.4.25 edit

Valter September 10, 2026 at 08:29 PM

#20663

13.4.25 edit

Valter September 10, 2026 at 08:29 PM

#20662

13.4.25 new solution

Valter September 10, 2026 at 08:22 PM

#20661

2 hours 32 minutes between problems

solved· 3.4.19 in 4 minutes 44 seconds

3.4.19 edit

Valter September 10, 2026 at 05:50 PM

#20660

3.4.19 edit

Valter September 10, 2026 at 05:49 PM

#20659

3.4.19 edit

Valter September 10, 2026 at 05:48 PM

#20658

3.4.19 edit

Valter September 10, 2026 at 05:46 PM

#20657

3.4.19 new solution

Valter September 10, 2026 at 05:45 PM

#20656

3 hours 32 minutes between problems

solved· 13.4.15 in 10 minutes 37 seconds

13.4.15 edit

emixter September 10, 2026 at 02:13 PM

#20655

13.4.15 new solution

emixter September 10, 2026 at 02:02 PM

#20654

3 hours 45 minutes between problems

solved· 13.4.9 in 1 hour 5 minutes

13.4.9 edit

emixter September 10, 2026 at 10:17 AM

#20653

13.4.9 edit

emixter September 10, 2026 at 09:41 AM

#20652

13.4.9 new solution

emixter September 10, 2026 at 09:11 AM

#20651

6 hours 49 minutes between problems

solved· 3.7.10 in 1 minute 24 seconds

3.7.10 edit

Tete September 10, 2026 at 02:21 AM

#20650

3.7.10 new solution

Tete September 10, 2026 at 02:20 AM

#20649

7 hours 14 minutes between problems

solved· 6.6.15

6.6.15 comment

astrosander September 9, 2026 at 08:27 PM

thread

6.6.15 comment

astrosander September 9, 2026 at 07:58 PM

thread

6.6.15 comment

Valter September 9, 2026 at 07:51 PM

thread

6.6.15 comment

emixter September 9, 2026 at 07:37 PM

thread

6.6.15 edit

astrosander September 9, 2026 at 07:06 PM

#20647

6.6.15 edit

astrosander September 9, 2026 at 07:06 PM

#20648

19 minutes between problems

solved· 6.5.3 in 31 minutes 33 seconds

6.5.3 edit

Valter September 9, 2026 at 06:46 PM

#20646

6.5.3 edit

Valter September 9, 2026 at 06:42 PM

#20645

6.5.3 edit

Valter September 9, 2026 at 06:18 PM

#20644

6.5.3 edit

Valter September 9, 2026 at 06:17 PM

#20643

6.5.3 edit

Valter September 9, 2026 at 06:14 PM

#20642

10 minutes between problems

solved· 6.6.14 in 23 minutes 19 seconds

6.6.14 edit

Valter September 9, 2026 at 06:04 PM

#20641

6.6.14 edit

Valter September 9, 2026 at 06:00 PM

#20640

6.6.14 edit

Valter September 9, 2026 at 05:49 PM

#20639

6.6.14 edit

Valter September 9, 2026 at 05:49 PM

#20638

6.6.14 edit

Valter September 9, 2026 at 05:48 PM

#20637

6.6.14 edit

Valter September 9, 2026 at 05:41 PM

#20636

50 minutes between problems

solved· 6.3.33 in 4 minutes 23 seconds

6.3.33 edit

Tete September 9, 2026 at 04:50 PM

#20635

6.3.33 edit

Tete September 9, 2026 at 04:46 PM

#20634

13 hours 40 minutes between problems

solved· 5.5.12 in 2 minutes 14 seconds

5.5.12 edit

Tete September 9, 2026 at 03:05 AM

#20633

5.5.12 edit

Tete September 9, 2026 at 03:03 AM

#20632

47 minutes between problems

solved· 5.5.11 in 2 minutes 34 seconds

5.5.11 edit

Tete September 9, 2026 at 02:15 AM

#20631

5.5.11 edit

Tete September 9, 2026 at 02:13 AM

#20630

1 hour 42 minutes between problems

solved· 4.1.18 in 2 minutes 11 seconds

4.1.18 edit

Tete September 9, 2026 at 12:31 AM

#20629

4.1.18 edit

Tete September 9, 2026 at 12:28 AM

#20628

4 hours 59 minutes between problems

solved· 6.6.15

6.6.15 edit

Valter September 8, 2026 at 07:29 PM

#20627

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