All Contributions

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

19820 contributions

1934 problems

98 contributors

solved· 14.1.3 in 11 seconds

14.1.3 edit

JAMF June 5, 2026 at 09:04 PM

#18312

14.1.3 edit

JAMF June 5, 2026 at 09:04 PM

#18311

14.1.3 edit

JAMF June 5, 2026 at 09:03 PM

#18310

14.1.3 edit

JAMF June 5, 2026 at 09:03 PM

#18309

14.1.3 edit

JAMF June 5, 2026 at 09:03 PM

#18308

14.1.3 edit

JAMF June 5, 2026 at 09:03 PM

#18307

14.1.3 edit

JAMF June 5, 2026 at 09:03 PM

#18306

3 hours 50 minutes between problems

solved· 14.5.13 in 4 minutes 2 seconds

14.5.13 edit

jzmicer June 5, 2026 at 05:13 PM

#18305

14.5.13 edit

jzmicer June 5, 2026 at 05:11 PM

#18304

14.5.13 edit

jzmicer June 5, 2026 at 05:09 PM

#18303

52 minutes between problems

solved· 14.5.12

14.5.12 edit

emixter June 5, 2026 at 04:16 PM

#18302

40 minutes between problems

solved· 14.5.13

14.5.13 new solution

jzmicer June 5, 2026 at 03:36 PM

#18301

13 minutes between problems

solved· 14.5.12 in 40 minutes 49 seconds

14.5.12 edit

jzmicer June 5, 2026 at 03:22 PM

#18300

14.5.12 new solution

jzmicer June 5, 2026 at 02:41 PM

#18299

57 minutes between problems

solved· 7.3.6

7.3.6 comment

igor June 5, 2026 at 01:44 PM

thread

4 minutes between problems

solved· 14.1.23 in 11 minutes 11 seconds

14.1.23 edit

Sergey_Kuleshov June 5, 2026 at 01:39 PM

#18298

14.1.23 edit

Sergey_Kuleshov June 5, 2026 at 01:37 PM

#18297

14.1.23 edit

Sergey_Kuleshov June 5, 2026 at 01:32 PM

#18296

14.1.23 new solution

Sergey_Kuleshov June 5, 2026 at 01:28 PM

#18295

3 hours 17 minutes between problems

solved· 7.3.6 in 1 hour 40 minutes

7.3.6 comment

emixter June 5, 2026 at 01:17 PM

thread

7.3.6 edit

igor June 5, 2026 at 10:11 AM

#18294

7.3.6 edit

igor June 5, 2026 at 09:58 AM

#18293

7.3.6 edit

igor June 5, 2026 at 09:56 AM

#18292

7.3.6 edit

igor June 5, 2026 at 09:51 AM

#18291

7.3.6 edit

igor June 5, 2026 at 09:48 AM

#18290

7.3.6 edit

igor June 5, 2026 at 09:47 AM

#18289

7.3.6 edit

igor June 5, 2026 at 09:21 AM

#18288

7.3.6 new solution

igor June 5, 2026 at 08:30 AM

#18287

1 hour 23 minutes between problems

solved· 3.5.32

3.5.32 comment

igor June 5, 2026 at 07:07 AM

thread

13 minutes between problems

solved· 5.9.25

5.9.25 comment

Николай Иванович June 5, 2026 at 06:54 AM

thread

2 hours 3 minutes between problems

solved· 2.5.25 in 3 hours 20 minutes

2.5.25 edit

JMMA2006 June 5, 2026 at 04:50 AM

#18286

2.5.25 edit

JMMA2006 June 5, 2026 at 04:48 AM

#18285

2.5.25 edit

JMMA2006 June 5, 2026 at 01:30 AM

#18284

2.5.25 edit

JMMA2006 June 5, 2026 at 01:29 AM

#18283

2.5.25 edit

JMMA2006 June 5, 2026 at 01:29 AM

#18282

2.5.25 edit

JMMA2006 June 5, 2026 at 01:29 AM

#18281

2.5.25 edit

JMMA2006 June 5, 2026 at 01:29 AM

#18280

2.5.25 edit

JMMA2006 June 5, 2026 at 01:29 AM

#18279

58 minutes between problems

solved· 10.1.3 in 33 seconds

10.1.3 edit

JMMA2006 June 5, 2026 at 12:31 AM

#18278

10.1.3 edit

JMMA2006 June 5, 2026 at 12:31 AM

#18277

10.1.3 edit

JMMA2006 June 5, 2026 at 12:31 AM

#18276

10.1.3 edit

JMMA2006 June 5, 2026 at 12:31 AM

#18275

10.1.3 edit

JMMA2006 June 5, 2026 at 12:31 AM

#18274

10.1.3 edit

JMMA2006 June 5, 2026 at 12:30 AM

#18273

4 hours 38 minutes between problems

solved· 14.1.22 in 5 minutes 54 seconds

14.1.22 edit

Sergey_Kuleshov June 4, 2026 at 07:52 PM

#18272

14.1.22 new solution

Sergey_Kuleshov June 4, 2026 at 07:46 PM

#18271

1 hour 5 minutes between problems

solved· 8.1.1

8.1.1 edit

Luisito June 4, 2026 at 06:41 PM

#18270

2 minutes between problems

solved· 10.1.2 in 1 minute 22 seconds

10.1.2 edit

Luisito June 4, 2026 at 06:39 PM

#18269

10.1.2 edit

Luisito June 4, 2026 at 06:38 PM

#18268

10.1.2 edit

Luisito June 4, 2026 at 06:37 PM

#18267

39 minutes between problems

solved· 8.1.1 in 48 seconds

8.1.1 edit

Luisito June 4, 2026 at 05:58 PM

#18266

8.1.1 edit

Luisito June 4, 2026 at 05:57 PM

#18265

3 hours 45 minutes between problems

solved· 14.1.20 in 4 minutes 42 seconds

14.1.20 edit

Sergey_Kuleshov June 4, 2026 at 02:12 PM

#18264

14.1.20 edit

Sergey_Kuleshov June 4, 2026 at 02:11 PM

#18263

14.1.20 new solution

Sergey_Kuleshov June 4, 2026 at 02:07 PM

#18262

1 hour 27 minutes between problems

solved· 14.5.11 in 9 minutes 11 seconds

14.5.11 edit

jzmicer June 4, 2026 at 12:40 PM

#18261

14.5.11 new solution

jzmicer June 4, 2026 at 12:30 PM

#18260

3 hours 10 minutes between problems

solved· 14.5.4 in 7 minutes 55 seconds

14.5.4 comment

astrosander June 4, 2026 at 10:39 AM

thread

14.5.4 comment

emixter June 4, 2026 at 10:37 AM

thread

14.5.4 edit

jzmicer June 4, 2026 at 09:20 AM

#18259

14.5.4 new solution

jzmicer June 4, 2026 at 09:12 AM

#18258

2 hours 12 minutes between problems

solved· 7.1.17

7.1.17 comment

igor June 4, 2026 at 06:59 AM

thread

1 hour 49 minutes between problems

solved· 7.1.14 in 22 minutes 17 seconds

7.1.14 edit

igor June 4, 2026 at 05:10 AM

#18257

7.1.14 edit

igor June 4, 2026 at 05:07 AM

#18256

7.1.14 new solution

igor June 4, 2026 at 04:48 AM

#18255

7 hours 39 minutes between problems

solved· 14.5.22

14.5.22 edit

jzmicer June 3, 2026 at 09:08 PM

#18254

2 hours 28 minutes between problems

solved· 14.1.19 in 1 minute 35 seconds

14.1.19 edit

Sergey_Kuleshov June 3, 2026 at 06:39 PM

#18253

14.1.19 new solution

Sergey_Kuleshov June 3, 2026 at 06:38 PM

#18252

2 hours 7 minutes between problems

solved· 7.1.9 in 23 minutes 15 seconds

7.1.9 edit

igor June 3, 2026 at 04:31 PM

#18251

7.1.9 edit

igor June 3, 2026 at 04:29 PM

#18250

7.1.9 edit

igor June 3, 2026 at 04:26 PM

#18249

7.1.9 edit

igor June 3, 2026 at 04:25 PM

#18248

7.1.9 new solution

igor June 3, 2026 at 04:07 PM

#18247

42 minutes between problems

solved· 14.5.22

14.5.22 new solution

jzmicer June 3, 2026 at 03:25 PM

#18246

1 hour between problems

solved· 7.1.13 in 1 hour 1 minute

7.1.13 edit

igor June 3, 2026 at 02:24 PM

#18245

7.1.13 edit

igor June 3, 2026 at 02:23 PM

#18244

7.1.13 new solution

igor June 3, 2026 at 01:23 PM

#18243

3 hours 13 minutes between problems

solved· 14.1.18 in 1 minute 26 seconds

14.1.18 edit

Sergey_Kuleshov June 3, 2026 at 10:10 AM

#18242

14.1.18 new solution

Sergey_Kuleshov June 3, 2026 at 10:08 AM

#18241

2 hours 15 minutes between problems

solved· 14.1.17 in 6 minutes 49 seconds

14.1.17 edit

Sergey_Kuleshov June 3, 2026 at 07:52 AM

#18240

14.1.17 edit

Sergey_Kuleshov June 3, 2026 at 07:50 AM

#18239

14.1.17 edit

Sergey_Kuleshov June 3, 2026 at 07:48 AM

#18238

14.1.17 edit

Sergey_Kuleshov June 3, 2026 at 07:48 AM

#18237

14.1.17 new solution

Sergey_Kuleshov June 3, 2026 at 07:46 AM

#18236

9 hours 3 minutes between problems

solved· 14.5.18 in 2 hours 19 minutes

14.5.18 edit

jzmicer June 2, 2026 at 10:42 PM

#18235

14.5.18 new solution

jzmicer June 2, 2026 at 08:22 PM

#18234

21 minutes between problems

solved· 14.1.16 in 3 minutes 14 seconds

14.1.16 edit

Sergey_Kuleshov June 2, 2026 at 08:01 PM

#18233

14.1.16 new solution

Sergey_Kuleshov June 2, 2026 at 07:58 PM

#18232

45 minutes between problems

solved· 3.6.19 in 3 minutes 12 seconds

3.6.19 comment

Sergey_Kuleshov June 2, 2026 at 07:14 PM

thread

3.6.19 edit

Sergey_Kuleshov June 2, 2026 at 07:13 PM

#18231

3.6.19 edit

Sergey_Kuleshov June 2, 2026 at 07:12 PM

#18230

3.6.19 new solution

Sergey_Kuleshov June 2, 2026 at 07:10 PM

#18229

3 hours 19 minutes between problems

solved· 14.5.9 in 1 hour 20 minutes

14.5.9 edit

jzmicer June 2, 2026 at 03:50 PM

#18228

14.5.9 new solution

jzmicer June 2, 2026 at 02:29 PM

#18227

1 hour 37 minutes between problems

solved· 14.5.23

14.5.23 edit

jzmicer June 2, 2026 at 12:52 PM

#18226

44 minutes between problems

solved· 12.1.7 in 18 minutes 10 seconds

12.1.7 edit

igor June 2, 2026 at 12:08 PM

#18225

12.1.7 new solution

igor June 2, 2026 at 11:49 AM

#18224

14 minutes between problems

solved· 5.9.25

5.9.25 comment

Vladikros June 2, 2026 at 11:35 AM

thread

38 minutes between problems

solved· 3.4.8 in 10 minutes 44 seconds

3.4.8 edit

igor June 2, 2026 at 10:57 AM

#18223

3.4.8 new solution

igor June 2, 2026 at 10:46 AM

#18222

16 minutes between problems

solved· 3.4.7 in 33 minutes 8 seconds

3.4.7 edit

igor June 2, 2026 at 10:30 AM

#18221

3.4.7 edit

igor June 2, 2026 at 10:29 AM

#18220

3.4.7 edit

igor June 2, 2026 at 10:27 AM

#18219

3.4.7 new solution

igor June 2, 2026 at 09:57 AM

#18218

9 minutes between problems

solved· 14.5.23

14.5.23 new solution

jzmicer June 2, 2026 at 09:47 AM

#18217

12 minutes between problems

solved· 5.9.25

5.9.25 comment

Влад June 2, 2026 at 09:35 AM

thread

14 minutes between problems

solved· 14.5.5 in 35 minutes 50 seconds

14.5.5 edit

jzmicer June 2, 2026 at 09:20 AM

#18216

14.5.5 edit

jzmicer June 2, 2026 at 09:20 AM

#18215

14.5.5 new solution

jzmicer June 2, 2026 at 08:44 AM

#18214

2 hours 33 minutes between problems

solved· 3.3.33 in 32 minutes 20 seconds

3.3.33 edit

igor June 2, 2026 at 06:11 AM

#18213

3.3.33 edit

igor June 2, 2026 at 05:38 AM

#18212

7 hours 42 minutes between problems

solved· 14.1.13 in 2 hours 9 minutes

14.1.13 edit

jzmicer June 1, 2026 at 09:56 PM

#18211

14.1.13 new solution

jzmicer June 1, 2026 at 07:46 PM

#18210

2 hours 58 minutes between problems

solved· 3.6.13 in 15 minutes 43 seconds

3.6.13 edit

igor June 1, 2026 at 04:48 PM

#18209

3.6.13 edit

igor June 1, 2026 at 04:46 PM

#18208

3.6.13 new solution

igor June 1, 2026 at 04:32 PM

#18207

10 minutes between problems

solved· 3.5.1 in 47 minutes 2 seconds

3.5.1 edit

igor June 1, 2026 at 04:21 PM

#18206

3.5.1 new solution

igor June 1, 2026 at 03:34 PM

#18205

6 minutes between problems

solved· 3.4.6

3.4.6 comment

emixter June 1, 2026 at 03:28 PM

thread

3.4.6 comment

igor June 1, 2026 at 03:16 PM

thread

55 minutes between problems

solved· 5.9.25

5.9.25 comment

LitEnergy June 1, 2026 at 02:33 PM

thread

27 minutes between problems

solved· 3.6.18 in 1 minute 49 seconds

3.6.18 edit

Sergey_Kuleshov June 1, 2026 at 02:05 PM

#18204

3.6.18 new solution

Sergey_Kuleshov June 1, 2026 at 02:03 PM

#18203

7 minutes between problems

solved· 3.4.3

3.4.3 comment

igor June 1, 2026 at 01:56 PM

thread

1 hour 30 minutes between problems

solved· 3.6.17 in 2 minutes 14 seconds

3.6.17 edit

Sergey_Kuleshov June 1, 2026 at 12:25 PM

#18178

3.6.17 new solution

Sergey_Kuleshov June 1, 2026 at 12:23 PM

#18177

17 minutes between problems

solved· 3.4.3

3.4.3 edit

igor June 1, 2026 at 12:05 PM

#18176

10 minutes between problems

solved· 3.4.5 in 55 minutes 26 seconds

3.4.5 edit

igor June 1, 2026 at 11:55 AM

#18175

3.4.5 new solution

igor June 1, 2026 at 10:59 AM

#18174

1 hour 31 minutes between problems

solved· 3.6.16

3.6.16 edit

Sergey_Kuleshov June 1, 2026 at 09:28 AM

#18173

4 minutes between problems

solved· 3.3.31

3.3.31 edit

igor June 1, 2026 at 09:23 AM

#18172

less than a minute between problems

solved· 3.6.16

3.6.16 new solution

Sergey_Kuleshov June 1, 2026 at 09:23 AM

#18171

49 minutes between problems

solved· 3.3.31

3.3.31 edit

igor June 1, 2026 at 08:34 AM

#18170

12 hours 32 minutes between problems

solved· 5.9.25 in 53 minutes 54 seconds

5.9.25 edit

Sergey_Kuleshov May 31, 2026 at 08:02 PM

#18169

5.9.25 comment

emixter May 31, 2026 at 07:47 PM

thread

5.9.25 edit

Rostyslav May 31, 2026 at 07:10 PM

#18168

5.9.25 edit

Rostyslav May 31, 2026 at 07:08 PM

#18167

5.9.25 new solution

Rostyslav May 31, 2026 at 07:08 PM

#18166

9 hours 40 minutes between problems

solved· 14.5.8 in 1 hour

14.5.8 edit

emixter May 31, 2026 at 09:27 AM

#18165

14.5.8 new solution

emixter May 31, 2026 at 08:26 AM

#18164

3 hours 3 minutes between problems

solved· 2.1.9 in 14 hours 21 minutes

2.1.9 edit

astrosander May 31, 2026 at 05:23 AM

#18163

2.1.9 edit

Roberto May 30, 2026 at 03:02 PM

#18162

2.1.9 edit

Roberto May 30, 2026 at 03:01 PM

#18161

1 hour 39 minutes between problems

solved· 7.4.33 in 22 minutes 51 seconds

7.4.33 edit

emixter May 30, 2026 at 01:22 PM

#18160

7.4.33 new solution

emixter May 30, 2026 at 01:00 PM

#18159

4 hours 49 minutes between problems

solved· 7.1.15

7.1.15 comment

igor May 30, 2026 at 08:10 AM

thread

11 hours 37 minutes between problems

solved· 7.3.12 in 29 minutes 55 seconds

7.3.12 edit

emixter May 29, 2026 at 08:33 PM

#18158

7.3.12 new solution

emixter May 29, 2026 at 08:03 PM

#18157

46 minutes between problems

solved· 7.1.15 in 1 hour 16 minutes

7.1.15 edit

emixter May 29, 2026 at 07:17 PM

#18156

7.1.15 new solution

emixter May 29, 2026 at 06:01 PM

#18155

2 days 3 hours between problems

solved· 3.6.15 in 58 minutes 17 seconds

3.6.15 comment

igor May 28, 2026 at 07:48 AM

thread

3.6.15 edit

Sergey_Kuleshov May 27, 2026 at 02:06 PM

#18154

3.6.15 edit

Sergey_Kuleshov May 27, 2026 at 01:13 PM

#18153

3.6.15 edit

Sergey_Kuleshov May 27, 2026 at 01:11 PM

#18152

3.6.15 new solution

Sergey_Kuleshov May 27, 2026 at 01:08 PM

#18151

5 hours 46 minutes between problems

solved· 11.3.6

11.3.6 comment

igor May 27, 2026 at 07:22 AM

thread

3 minutes between problems

solved· 3.6.14

3.6.14 comment

igor May 27, 2026 at 07:18 AM

thread

12 hours 22 minutes between problems

solved· 11.3.6

11.3.6 comment

jzmicer May 26, 2026 at 06:56 PM

thread

8 hours 3 minutes between problems

solved· 3.6.14 in 3 minutes 18 seconds

3.6.14 edit

Sergey_Kuleshov May 26, 2026 at 10:52 AM

#18150

3.6.14 new solution

Sergey_Kuleshov May 26, 2026 at 10:49 AM

#18149

4 hours 7 minutes between problems

solved· 11.3.6

11.3.6 comment

igor May 26, 2026 at 06:41 AM

thread

11.3.6 comment

igor May 26, 2026 at 06:41 AM

thread

20 hours 29 minutes between problems

solved· 2.8.14 in 2 hours 44 minutes

2.8.14 comment

igor May 26, 2026 at 06:33 AM

thread

2.8.14 edit

astrosander May 25, 2026 at 10:12 AM

#18148

2.8.14 edit

astrosander May 25, 2026 at 10:12 AM

#18147

2.8.14 edit

Sergey_Kuleshov May 25, 2026 at 07:31 AM

#18146

2.8.14 edit

Sergey_Kuleshov May 25, 2026 at 07:30 AM

#18145

2.8.14 edit

Sergey_Kuleshov May 25, 2026 at 07:30 AM

#18144

2.8.14 edit

Sergey_Kuleshov May 25, 2026 at 07:28 AM

#18143

31 minutes between problems

solved· 2.8.13 in 3 minutes 42 seconds

2.8.13 edit

Sergey_Kuleshov May 25, 2026 at 06:56 AM

#18142

2.8.13 edit

Sergey_Kuleshov May 25, 2026 at 06:52 AM

#18141

1 day 1 hour between problems

solved· 5.6.26

5.6.26 edit

astrosander May 24, 2026 at 05:04 AM

#18140

12 hours 10 minutes between problems

solved· 2.4.13

2.4.13 comment

RI_a21 May 23, 2026 at 04:53 PM

thread

4 hours 56 minutes between problems

solved· 5.6.26

5.6.26 edit

gfernandez May 23, 2026 at 11:57 AM

#18139

18 minutes between problems

solved· 5.6.13 in 20 minutes 10 seconds

5.6.13 edit

gfernandez May 23, 2026 at 11:38 AM

#18138

5.6.13 edit

gfernandez May 23, 2026 at 11:38 AM

#18137

5.6.13 new solution

gfernandez May 23, 2026 at 11:18 AM

#18136

9 minutes between problems

solved· 5.6.11 in 8 minutes 20 seconds

5.6.11 edit

gfernandez May 23, 2026 at 11:08 AM

#18135

5.6.11 edit

gfernandez May 23, 2026 at 11:05 AM

#18134

5.6.11 new solution

gfernandez May 23, 2026 at 11:00 AM

#18133

5 minutes between problems

solved· 5.6.9 in 2 minutes 14 seconds

5.6.9 edit

astrosander May 23, 2026 at 10:55 AM

#18132

5.6.9 edit

gfernandez May 23, 2026 at 10:54 AM

#18131

5.6.9 edit

astrosander May 23, 2026 at 10:54 AM

#18130

5.6.9 new solution

gfernandez May 23, 2026 at 10:52 AM

#18129

6 minutes between problems

solved· 7.1.6

7.1.6 edit

astrosander May 23, 2026 at 10:46 AM

#18128

2 minutes between problems

solved· 5.6.26

5.6.26 edit

astrosander May 23, 2026 at 10:43 AM

#18127

less than a minute between problems

solved· 7.1.6 in 1 second

7.1.6 edit

jzmicer May 23, 2026 at 10:43 AM

#18126

7.1.6 edit

jzmicer May 23, 2026 at 10:43 AM

#18125

1 minute between problems

solved· 5.6.26

5.6.26 edit

astrosander May 23, 2026 at 10:41 AM

#18124

2 minutes between problems

solved· 2.8.36

2.8.36 edit

astrosander May 23, 2026 at 10:39 AM

#18123

2 minutes between problems

solved· 3.3.34

3.3.34 edit

astrosander May 23, 2026 at 10:37 AM

#18122

3 minutes between problems

solved· 3.3.14 in 1 minute 24 seconds

3.3.14 edit

astrosander May 23, 2026 at 10:33 AM

#18121

3.3.14 edit

astrosander May 23, 2026 at 10:32 AM

#18120

1 minute between problems

solved· 5.6.26 in 40 seconds

5.6.26 edit

gfernandez May 23, 2026 at 10:30 AM

#18119

5.6.26 edit

gfernandez May 23, 2026 at 10:30 AM

#18118

4 minutes between problems

solved· 3.3.20 in 3 minutes 32 seconds

3.3.20 edit

astrosander May 23, 2026 at 10:25 AM

#18117

3.3.20 edit

astrosander May 23, 2026 at 10:21 AM

#18116

12 minutes between problems

solved· 4.2.24 in 23 seconds

4.2.24 comment

astrosander May 23, 2026 at 10:10 AM

thread

4.2.24 edit

astrosander May 23, 2026 at 10:09 AM

#18115

4.2.24 edit

astrosander May 23, 2026 at 10:08 AM

#18114

3 minutes between problems

solved· 3.3.18 in 39 seconds

3.3.18 edit

astrosander May 23, 2026 at 10:05 AM

#18113

3.3.18 edit

astrosander May 23, 2026 at 10:04 AM

#18112

1 minute between problems

solved· 3.3.32

3.3.32 edit

astrosander May 23, 2026 at 10:03 AM

#18111

1 minute between problems

solved· 2.3.37 in 7 seconds

2.3.37 edit

astrosander May 23, 2026 at 10:02 AM

#18110

2.3.37 edit

astrosander May 23, 2026 at 10:02 AM

#18109

7 minutes between problems

solved· 4.5.3

4.5.3 edit

astrosander May 23, 2026 at 09:54 AM

#18108

less than a minute between problems

solved· 4.2.19

4.2.19 edit

astrosander May 23, 2026 at 09:54 AM

#18107

1 minute between problems

solved· 5.4.14

5.4.14 edit

astrosander May 23, 2026 at 09:52 AM

#18106

44 minutes between problems

solved· 7.1.6

7.1.6 edit

jzmicer May 23, 2026 at 09:08 AM

#18105

20 hours 5 minutes between problems

solved· 5.6.26 in 4 minutes 1 second

5.6.26 edit

gfernandez May 22, 2026 at 01:02 PM

#18104

5.6.26 edit

gfernandez May 22, 2026 at 01:02 PM

#18103

5.6.26 edit

gfernandez May 22, 2026 at 01:01 PM

#18102

5.6.26 edit

gfernandez May 22, 2026 at 12:58 PM

#18101

1 hour 17 minutes between problems

solved· 2.6.45 in 4 minutes 54 seconds

2.6.45 edit

Sergey_Kuleshov May 22, 2026 at 11:41 AM

#18100

2.6.45 edit

Sergey_Kuleshov May 22, 2026 at 11:36 AM

#18099

25 minutes between problems

solved· 5.8.10 in 37 minutes 26 seconds

5.8.10 edit

emixter May 22, 2026 at 11:10 AM

#18098

5.8.10 new solution

emixter May 22, 2026 at 10:33 AM

#18097

12 minutes between problems

solved· 5.6.26 in 1 hour 26 minutes

5.6.26 edit

gfernandez May 22, 2026 at 10:20 AM

#18096

5.6.26 edit

gfernandez May 22, 2026 at 09:10 AM

#18095

5.6.26 edit

gfernandez May 22, 2026 at 08:53 AM

#18094

1 hour 41 minutes between problems

solved· 4.6.15

4.6.15 comment

igor May 22, 2026 at 07:11 AM

thread

1 hour 50 minutes between problems

solved· 5.6.26 in 58 minutes 8 seconds

5.6.26 edit

gfernandez May 22, 2026 at 05:21 AM

#18093

5.6.26 edit

gfernandez May 22, 2026 at 05:19 AM

#18092

5.6.26 edit

gfernandez May 22, 2026 at 04:42 AM

#18091

5.6.26 edit

gfernandez May 22, 2026 at 04:23 AM

#18090

9 hours 28 minutes between problems

solved· 11.3.6

11.3.6 comment

emixter May 21, 2026 at 06:54 PM

thread

13 minutes between problems

solved· 4.6.15

4.6.15 edit

Sergey_Kuleshov May 21, 2026 at 06:41 PM

#18089

4 minutes between problems

solved· 11.3.6

11.3.6 comment

jzmicer May 21, 2026 at 06:36 PM

thread

2 hours 26 minutes between problems

solved· 4.6.15

4.6.15 comment

Sergey_Kuleshov May 21, 2026 at 05:42 PM

thread

4.6.15 edit

Sergey_Kuleshov May 21, 2026 at 04:10 PM

#18088

4.6.15 comment

emixter May 21, 2026 at 04:08 PM

thread

15 minutes between problems

solved· 11.3.6

11.3.6 comment

emixter May 21, 2026 at 03:54 PM

thread

1 hour 23 minutes between problems

solved· 4.6.15 in 28 minutes 48 seconds

4.6.15 edit

Sergey_Kuleshov May 21, 2026 at 02:30 PM

#18087

4.6.15 edit

Sergey_Kuleshov May 21, 2026 at 02:26 PM

#18086

4.6.15 edit

Sergey_Kuleshov May 21, 2026 at 02:02 PM

#18085

4 hours 36 minutes between problems

solved· 5.6.20 in 22 minutes 50 seconds

5.6.20 edit

astrosander May 21, 2026 at 09:25 AM

#18084

5.6.20 edit

gfernandez May 21, 2026 at 09:05 AM

#18083

5.6.20 edit

gfernandez May 21, 2026 at 09:04 AM

#18082

5.6.20 new solution

gfernandez May 21, 2026 at 09:02 AM

#18081

13 hours 48 minutes between problems

solved· 11.3.6 in 3 hours 25 minutes

11.3.6 comment

igor May 21, 2026 at 06:29 AM

thread

11.3.6 edit

jzmicer May 20, 2026 at 07:14 PM

#18080

11.3.6 edit

jzmicer May 20, 2026 at 06:41 PM

#18079

11.3.6 new solution

jzmicer May 20, 2026 at 03:48 PM

#18078

13 minutes between problems

solved· 7.1.8 in 19 minutes 33 seconds

7.1.8 comment

jzmicer May 20, 2026 at 03:41 PM

thread

7.1.8 edit

jzmicer May 20, 2026 at 03:34 PM

#18077

7.1.8 comment

jzmicer May 20, 2026 at 03:20 PM

thread

7.1.8 edit

jzmicer May 20, 2026 at 03:15 PM

#18076

7.1.8 comment

igor May 20, 2026 at 02:21 PM

thread

3 hours 50 minutes between problems

solved· 7.1.6

7.1.6 comment

igor May 20, 2026 at 11:24 AM

thread

5 hours 30 minutes between problems

solved· 7.1.8

7.1.8 edit

astrosander May 20, 2026 at 05:54 AM

#18075

Show more (17820)