@katka | Sudoku a Day

Date	Difficulty	Time	Rank	Rating +/-
Aug 21, 2026	Hard	6:59	#329 / 943	-0.9
Aug 20, 2026	Hard	7:24	#689 / 1170	-0.3
Aug 19, 2026	Hard	5:16	#836 / 1359	-0.6
Aug 18, 2026	Hard	5:44	#454 / 1130	+0.9
Aug 17, 2026	Hard	7:14	#565 / 1146	+3.5
Aug 16, 2026	Hard	5:31	#811 / 1338	+0.6
Aug 15, 2026	Hard	6:22	#858 / 1368	-0.6
Aug 14, 2026	Hard	5:08	-	-2.6
Aug 13, 2026	Hard	4:27	#323 / 1283	+1.8
Aug 12, 2026	Hard	6:52	#714 / 1260	-0.7
Aug 11, 2026	Hard	5:07	#1049 / 1444	+4.8
Aug 10, 2026	Hard	7:23	#649 / 1250	-0.1
Aug 9, 2026	Hard	9:19	#1008 / 1301	-1.9
Aug 8, 2026	Hard	6:53	#737 / 1265	+4.0
Aug 7, 2026	Hard	6:51	#601 / 1137	+3.0
Aug 6, 2026	Hard	7:49	#220 / 708	+0.1
Aug 5, 2026	Hard	5:32	#815 / 1313	+5.4
Aug 4, 2026	Hard	4:05	#747 / 1408	-0.1
Aug 3, 2026	Hard	7:02	#930 / 1352	+0.2
Aug 2, 2026	Hard	7:33	#596 / 1189	+3.4
Aug 1, 2026	Hard	6:26	#942 / 1386	-0.3
Jul 31, 2026	Hard	7:43	#1008 / 1319	-1.3
Jul 30, 2026	Hard	8:02	#796 / 1220	-1.0
Jul 29, 2026	Hard	7:25	#566 / 1160	-1.1
Jul 28, 2026	Hard	4:58	#978 / 1447	+5.1
Jul 27, 2026	Hard	4:26	#466 / 1322	+1.4
Jul 26, 2026	Hard	5:05	#514 / 1274	+1.6
Jul 25, 2026	Hard	6:22	#1016 / 1358	+4.7
Jul 24, 2026	Hard	7:27	#642 / 1159	-0.1
Jul 23, 2026	Hard	5:08	#755 / 1338	+0.9
Jul 22, 2026	Hard	4:41	#732 / 1353	+1.9
Jul 21, 2026	Hard	6:23	#455 / 1108	+0.9
Jul 20, 2026	Hard	9:34	#750 / 1143	-1.6
Jul 19, 2026	Hard	6:40	#811 / 1219	+0.2
Jul 18, 2026	Hard	8:20	#517 / 992	-1.2
Jul 17, 2026	Hard	5:20	#846 / 1320	+4.5
Jul 16, 2026	Hard	4:13	#466 / 1311	+7.4
Jul 15, 2026	Hard	8:20	-	-2.1
Jul 14, 2026	Hard	5:20	#537 / 1214	+1.5
Jul 13, 2026	Hard	7:30	#481 / 1055	-0.8
Jul 12, 2026	Hard	3:48	#463 / 1296	+7.9
Jul 11, 2026	Hard	4:52	#849 / 1410	+6.4
Jul 10, 2026	Hard	5:38	#502 / 1213	+5.1
Jul 9, 2026	Hard	7:38	#370 / 987	-0.9
Jul 8, 2026	Hard	5:31	#952 / 1383	-0.2
Jul 7, 2026	Hard	8:40	#1248 / 1414	+1.6
Jul 6, 2026	Hard	7:48	#1138 / 1386	-1.0
Jul 5, 2026	Hard	7:40	#830 / 1267	-0.5
Jul 4, 2026	Hard	5:01	#629 / 1346	+1.3
Jul 3, 2026	Hard	7:34	#688 / 1238	+0.4
Jul 2, 2026	Hard	6:35	#651 / 1235	-0.6
Jul 1, 2026	Hard	6:39	#973 / 1398	-0.9
Jun 30, 2026	Hard	7:10	#428 / 1052	-0.7
Jun 29, 2026	Hard	9:46	#1211 / 1373	-1.0
Jun 28, 2026	Hard	7:25	#1062 / 1356	-0.7
Jun 27, 2026	Hard	7:08	#361 / 1020	-0.3
Jun 26, 2026	Hard	6:03	#609 / 1318	+0.1
Jun 25, 2026	Hard	6:56	#471 / 1162	-0.2
Jun 24, 2026	Hard	6:00	#1166 / 1486	+0.7
Jun 23, 2026	Hard	8:11	#1309 / 1457	-
Jun 22, 2026	Hard	5:08	-	-1.9
Jun 21, 2026	Hard	8:05	#849 / 1288	-1.0
Jun 20, 2026	Hard	6:28	#1035 / 1468	+0.4
Jun 19, 2026	Hard	8:00	#653 / 1230	-0.6
Jun 18, 2026	Hard	3:17	#634 / 1486	+10.4
Jun 17, 2026	Hard	7:17	#956 / 1388	-0.2
Jun 16, 2026	Hard	6:24	#1361 / 1543	-1.0
Jun 15, 2026	Hard	8:02	#750 / 1287	-0.5
Jun 14, 2026	Hard	4:03	#725 / 1443	+2.4
Jun 13, 2026	Hard	8:25	#720 / 1231	+0.1
Jun 12, 2026	Hard	6:30	#311 / 998	-0.6
Jun 11, 2026	Hard	5:17	-	-1.5
Jun 10, 2026	Hard	8:01	#603 / 1192	-
Jun 9, 2026	Hard	5:11	#769 / 1444	+6.1
Jun 8, 2026	Hard	6:09	#1074 / 1496	+1.2
Jun 7, 2026	Hard	4:49	#1022 / 1502	+1.9
Jun 6, 2026	Hard	6:19	#1064 / 1443	+0.1
Jun 5, 2026	Hard	9:02	#702 / 1199	-0.3
Jun 4, 2026	Hard	7:14	#666 / 1285	-0.3
Jun 3, 2026	Hard	5:08	#807 / 1505	+7.6
Jun 2, 2026	Hard	5:14	#926 / 1517	+1.7
Jun 1, 2026	Hard	7:17	-	-1.2
May 31, 2026	Hard	4:43	#730 / 1411	+0.7
May 30, 2026	Hard	6:53	-	-1.6
May 29, 2026	Hard	7:20	#447 / 1129	+1.0
May 28, 2026	Hard	8:23	#533 / 1106	+2.9
May 27, 2026	Hard	9:03	#812 / 1233	-0.1
May 26, 2026	Hard	6:53	#1070 / 1401	+0.9
May 25, 2026	Hard	5:41	#734 / 1408	+1.7
May 24, 2026	Hard	6:37	#1038 / 1424	+4.2
May 23, 2026	Hard	5:12	#1130 / 1518	+6.5
May 22, 2026	Hard	13:18	#1275 / 1380	-1.0
May 21, 2026	Hard	7:20	#1006 / 1397	-1.0
May 20, 2026	Hard	6:39	#1333 / 1543	-0.6
May 19, 2026	Hard	9:16	#1313 / 1471	-1.0
May 18, 2026	Hard	8:36	-	-1.8
May 17, 2026	Hard	9:15	#938 / 1325	-
May 16, 2026	Hard	8:51	#1321 / 1501	+1.9
May 15, 2026	Hard	8:05	#1269 / 1486	-0.7
May 14, 2026	Hard	6:26	-	-1.9
May 13, 2026	Hard	9:31	#551 / 1015	-1.1
May 12, 2026	Hard	9:42	#1185 / 1389	-1.4
May 11, 2026	Hard	7:48	#1124 / 1425	+3.9
May 10, 2026	Hard	8:39	-	-1.8
May 9, 2026	Hard	6:02	-	-1.2
May 8, 2026	Hard	8:29	-	-1.8
May 7, 2026	Hard	9:29	#824 / 1189	-1.2
May 6, 2026	Hard	3:35	-	-2.2
May 5, 2026	Hard	9:20	#1405 / 1494	-0.3
May 4, 2026	Hard	8:20	#1252 / 1481	-1.0
May 3, 2026	Hard	6:50	#972 / 1411	-0.5
May 2, 2026	Hard	7:56	#936 / 1333	+0.7
May 1, 2026	Hard	6:36	#1248 / 1523	-0.4
Apr 30, 2026	Hard	10:17	#925 / 1267	-1.6
Apr 29, 2026	Hard	7:41	#616 / 1225	-0.5
Apr 28, 2026	Hard	10:23	-	-2.1
Apr 27, 2026	Hard	5:15	#527 / 1310	+1.7
Apr 26, 2026	Hard	7:37	#1130 / 1383	-1.5
Apr 25, 2026	Hard	10:11	#734 / 1098	-0.6
Apr 24, 2026	Hard	3:19	#711 / 1470	+0.4
Apr 23, 2026	Hard	9:04	#1068 / 1352	+2.7
Apr 22, 2026	Hard	7:02	#1090 / 1374	+5.5
Apr 21, 2026	Hard	5:27	#1021 / 1480	+6.9
Apr 20, 2026	Hard	5:23	#704 / 1331	+2.0
Apr 19, 2026	Hard	11:23	-	-2.3
Apr 18, 2026	Hard	7:41	-	-2.1
Apr 17, 2026	Hard	9:45	#909 / 1286	-1.2
Apr 16, 2026	Hard	12:01	#1311 / 1389	+0.4
Apr 15, 2026	Hard	9:53	#1141 / 1367	-0.5
Apr 14, 2026	Hard	9:38	#671 / 1150	-1.2
Apr 13, 2026	Hard	9:03	#870 / 1249	-1.5
Apr 12, 2026	Hard	7:29	#1217 / 1461	+0.5
Apr 11, 2026	Hard	10:36	#734 / 1101	-1.2
Apr 10, 2026	Hard	6:54	#1329 / 1474	+5.1
Apr 9, 2026	Hard	6:49	#915 / 1356	-0.5
Apr 8, 2026	Hard	9:04	#932 / 1311	-1.5
Apr 7, 2026	Hard	6:27	#1182 / 1488	-0.6
Apr 6, 2026	Hard	5:26	#908 / 1511	+2.0
Apr 5, 2026	Hard	7:00	#921 / 1380	+5.4
Apr 4, 2026	Hard	6:06	#1054 / 1455	-0.8
Apr 3, 2026	Hard	4:35	#863 / 1436	+9.7
Apr 2, 2026	Hard	6:39	#939 / 1379	+6.3
Apr 1, 2026	Hard	8:21	#916 / 1380	+0.6
Mar 31, 2026	Hard	6:23	#660 / 1333	+2.0
Mar 30, 2026	Hard	4:46	#849 / 1487	+3.6
Mar 29, 2026	Hard	6:34	#1010 / 1407	+6.7
Mar 28, 2026	Hard	4:15	#1158 / 1519	+2.1
Mar 27, 2026	Hard	6:32	-	-1.7
Mar 26, 2026	Hard	6:06	#621 / 1324	+7.2
Mar 25, 2026	Hard	3:09	#365 / 1400	+6.5
Mar 24, 2026	Hard	5:41	-	-2.1
Mar 23, 2026	Hard	9:26	#1023 / 1297	-0.7
Mar 22, 2026	Hard	7:52	#653 / 1095	+5.5
Mar 21, 2026	Hard	10:00	#1093 / 1274	-1.2
Mar 20, 2026	Hard	4:21	#872 / 1444	+4.7
Mar 19, 2026	Hard	8:36	#1294 / 1436	-0.4
Mar 18, 2026	Hard	6:22	#1062 / 1501	+8.4
Mar 17, 2026	Hard	11:43	#876 / 1151	-0.8
Mar 16, 2026	Hard	6:34	#1127 / 1504	+7.8
Mar 15, 2026	Hard	7:07	#1214 / 1481	+7.2
Mar 14, 2026	Hard	9:29	#1263 / 1381	+1.1
Mar 13, 2026	Hard	7:28	#1163 / 1424	+2.3
Mar 12, 2026	Hard	9:28	#1159 / 1361	+1.1
Mar 11, 2026	Hard	12:43	#956 / 1111	-
Mar 10, 2026	Hard	10:02	-	-1.6
Mar 9, 2026	Hard	9:34	#820 / 1201	+4.4
Mar 8, 2026	Hard	9:01	#1139 / 1338	+1.1
Mar 7, 2026	Hard	7:52	-	-1.6
Mar 6, 2026	Hard	10:50	#1018 / 1187	+2.8
Mar 5, 2026	Hard	12:43	#1273 / 1344	+1.3
Mar 4, 2026	Hard	8:53	#1386 / 1493	+0.9
Mar 3, 2026	Hard	10:13	#958 / 1200	+0.9
Mar 2, 2026	Hard	6:56	#1113 / 1393	+8.3
Mar 1, 2026	Hard	5:40	#1179 / 1464	+10.3
Feb 28, 2026	Hard	8:57	#1200 / 1320	+4.3
Feb 27, 2026	Hard	4:11	#1081 / 1447	+6.8
Feb 26, 2026	Hard	7:50	-	-0.3
Feb 25, 2026	Hard	15:46	#850 / 929	-0.3
Jan 15, 2026	Hard	8:31	#338 / 367	+4.6
Jan 14, 2026	Hard	5:45	#287 / 366	+10.4
Jan 13, 2026	Hard	18:43	#301 / 313	-1.3
Jan 12, 2026	Hard	3:38	#241 / 364	+6.0
Jan 11, 2026	Hard	14:51	#230 / 263	-1.3
Jan 10, 2026	Hard	11:38	#313 / 336	-0.4
Jan 9, 2026	Hard	6:42	#263 / 338	+0.4
Jan 8, 2026	Hard	9:38	#283 / 330	-0.7
Jan 7, 2026	Hard	7:16	#213 / 320	+0.6
Jan 6, 2026	Hard	4:14	#342 / 381	+12.1
Jan 5, 2026	Hard	6:07	#305 / 341	+7.6
Jan 4, 2026	Hard	7:39	#345 / 369	-0.4
Jan 3, 2026	Hard	8:33	#316 / 363	+0.2
Jan 2, 2026	Hard	5:34	#332 / 387	+3.4
Jan 1, 2026	Hard	6:40	#339 / 405	+7.7
Dec 31, 2025	Hard	6:27	#254 / 313	+7.2
Dec 30, 2025	Hard	9:08	#251 / 324	-0.8
Dec 29, 2025	Hard	10:11	#300 / 323	-1.2
Dec 28, 2025	Hard	9:09	#151 / 242	-1.1
Dec 27, 2025	Hard	7:12	#260 / 326	-1.0