Long-lived methuselahs

[NickGotts]

Cross-posted from "Systematic Survey of Small Patterns".

Here are two more variants of bunnies10a (10-cell single-cluster patterns that last 17425 steps). The one on the left has a bounding box 7*5, and an MCPS of 11, which according to the usual criteria for methuselahs makes it the preferred variant.

Code: Select all

x = 27, y = 5, rule = B3/S23
bo19bo$3o17b2obo$3bobo19bo$bo2b2o15b2ob2o$6bo19bo!

[NickGotts]

Another slight improvement (in terms of life-span) to bunnies10. Let's call this one bunnies10b: lasts 17431.

Code: Select all

x = 9, y = 6, rule = B3/S23
o$bo$2bo$3bo$2b2obo$6b3o!

Bounding box 9*6, MCPS 11.

Here's an alternative form - the two have the same immediate successor:

Code: Select all

x = 9, y = 6, rule = B3/S23
o$2bo$bo$3bo$2b2obo$6b3o!

Same bounding box, but MCPS of 13.

Step 29 of bunnies10b is the same as step 23 of bunnies 10a.

[HerscheltheHerschel]

Presenting the B-pair Switchuselah (sorry for necropost):

Code: Select all

x = 43, y = 60, rule = B3/S23
7bobo$6bo$7bo2bo$9b3o7$bo$3o2$3o$b2ob2o34b2o$3bo37b2o$40b2o$40bo4$40bo
$40b2o$41b2o$40b2o4$40b2o$41b2o$40b2o$40bo4$40bo$40b2o$41b2o$40b2o4$
40b2o$41b2o$40b2o$40bo4$40bo$40b2o$41b2o$40b2o4$40b2o$41b2o$40b2o$40bo
!

[C_R_116]

I'm going to this thread since it's the only topic relevant to my post.

I've been trying to make methuselahs that try to continue evolving NOT based on pure random chaos:

Example 5625M:

Code: Select all

x = 20, y = 20, rule = B3/S23
7b3o5b3o$7bo9bo$8bo5b3o$10b2o$11bo2$8b2o$3o5b2o$o6bobo$bo4b2o4b2o$3b4o
bo4bo$4b2o12b2o$8bo8b2o$7bobo7bo$7bo8b2o5$16b3o!

What I've been trying to make is a pattern that tries to "prolong its evolution" through the use of gliders.

What I need is a fusestretcher (crab is the smallest example) and a pattern that lingers around before hitting the extended boat/barge.

If I can find a pattern that lingers for 8,000 generations before hitting a barge:

Code: Select all

x = 2011, y = 2015, rule = B3/S23
7b3o$7bo$8bo$10b2o$11bo2$8b2o$3o5b2o$o6bobo$bo4b2o$3b4obo$4b2o$8bo$7bo
bo$8bobo$9bobo$10bobo$11bobo$12bobo$13bobo$14bobo$15bobo$16bobo$17bobo
$18bobo$19bobo$20bobo$21bobo$22bobo$23bobo$24bobo$25bobo$26bobo$27bobo
$28bobo$29bobo$30bobo$31bobo$32bobo$33bobo$34bobo$35bobo$36bobo$37bobo
$38bobo$39bobo$40bobo$41bobo$42bobo$43bobo$44bobo$45bobo$46bobo$47bobo
$48bobo$49bobo$50bobo$51bobo$52bobo$53bobo$54bobo$55bobo$56bobo$57bobo
$58bobo$59bobo$60bobo$61bobo$62bobo$63bobo$64bobo$65bobo$66bobo$67bobo
$68bobo$69bobo$70bobo$71bobo$72bobo$73bobo$74bobo$75bobo$76bobo$77bobo
$78bobo$79bobo$80bobo$81bobo$82bobo$83bobo$84bobo$85bobo$86bobo$87bobo
$88bobo$89bobo$90bobo$91bobo$92bobo$93bobo$94bobo$95bobo$96bobo$97bobo
$98bobo$99bobo$100bobo$101bobo$102bobo$103bobo$104bobo$105bobo$106bobo
$107bobo$108bobo$109bobo$110bobo$111bobo$112bobo$113bobo$114bobo$115bo
bo$116bobo$117bobo$118bobo$119bobo$120bobo$121bobo$122bobo$123bobo$
124bobo$125bobo$126bobo$127bobo$128bobo$129bobo$130bobo$131bobo$132bob
o$133bobo$134bobo$135bobo$136bobo$137bobo$138bobo$139bobo$140bobo$141b
obo$142bobo$143bobo$144bobo$145bobo$146bobo$147bobo$148bobo$149bobo$
150bobo$151bobo$152bobo$153bobo$154bobo$155bobo$156bobo$157bobo$158bob
o$159bobo$160bobo$161bobo$162bobo$163bobo$164bobo$165bobo$166bobo$167b
obo$168bobo$169bobo$170bobo$171bobo$172bobo$173bobo$174bobo$175bobo$
176bobo$177bobo$178bobo$179bobo$180bobo$181bobo$182bobo$183bobo$184bob
o$185bobo$186bobo$187bobo$188bobo$189bobo$190bobo$191bobo$192bobo$193b
obo$194bobo$195bobo$196bobo$197bobo$198bobo$199bobo$200bobo$201bobo$
202bobo$203bobo$204bobo$205bobo$206bobo$207bobo$208bobo$209bobo$210bob
o$211bobo$212bobo$213bobo$214bobo$215bobo$216bobo$217bobo$218bobo$219b
obo$220bobo$221bobo$222bobo$223bobo$224bobo$225bobo$226bobo$227bobo$
228bobo$229bobo$230bobo$231bobo$232bobo$233bobo$234bobo$235bobo$236bob
o$237bobo$238bobo$239bobo$240bobo$241bobo$242bobo$243bobo$244bobo$245b
obo$246bobo$247bobo$248bobo$249bobo$250bobo$251bobo$252bobo$253bobo$
254bobo$255bobo$256bobo$257bobo$258bobo$259bobo$260bobo$261bobo$262bob
o$263bobo$264bobo$265bobo$266bobo$267bobo$268bobo$269bobo$270bobo$271b
obo$272bobo$273bobo$274bobo$275bobo$276bobo$277bobo$278bobo$279bobo$
280bobo$281bobo$282bobo$283bobo$284bobo$285bobo$286bobo$287bobo$288bob
o$289bobo$290bobo$291bobo$292bobo$293bobo$294bobo$295bobo$296bobo$297b
obo$298bobo$299bobo$300bobo$301bobo$302bobo$303bobo$304bobo$305bobo$
306bobo$307bobo$308bobo$309bobo$310bobo$311bobo$312bobo$313bobo$314bob
o$315bobo$316bobo$317bobo$318bobo$319bobo$320bobo$321bobo$322bobo$323b
obo$324bobo$325bobo$326bobo$327bobo$328bobo$329bobo$330bobo$331bobo$
332bobo$333bobo$334bobo$335bobo$336bobo$337bobo$338bobo$339bobo$340bob
o$341bobo$342bobo$343bobo$344bobo$345bobo$346bobo$347bobo$348bobo$349b
obo$350bobo$351bobo$352bobo$353bobo$354bobo$355bobo$356bobo$357bobo$
358bobo$359bobo$360bobo$361bobo$362bobo$363bobo$364bobo$365bobo$366bob
o$367bobo$368bobo$369bobo$370bobo$371bobo$372bobo$373bobo$374bobo$375b
obo$376bobo$377bobo$378bobo$379bobo$380bobo$381bobo$382bobo$383bobo$
384bobo$385bobo$386bobo$387bobo$388bobo$389bobo$390bobo$391bobo$392bob
o$393bobo$394bobo$395bobo$396bobo$397bobo$398bobo$399bobo$400bobo$401b
obo$402bobo$403bobo$404bobo$405bobo$406bobo$407bobo$408bobo$409bobo$
410bobo$411bobo$412bobo$413bobo$414bobo$415bobo$416bobo$417bobo$418bob
o$419bobo$420bobo$421bobo$422bobo$423bobo$424bobo$425bobo$426bobo$427b
obo$428bobo$429bobo$430bobo$431bobo$432bobo$433bobo$434bobo$435bobo$
436bobo$437bobo$438bobo$439bobo$440bobo$441bobo$442bobo$443bobo$444bob
o$445bobo$446bobo$447bobo$448bobo$449bobo$450bobo$451bobo$452bobo$453b
obo$454bobo$455bobo$456bobo$457bobo$458bobo$459bobo$460bobo$461bobo$
462bobo$463bobo$464bobo$465bobo$466bobo$467bobo$468bobo$469bobo$470bob
o$471bobo$472bobo$473bobo$474bobo$475bobo$476bobo$477bobo$478bobo$479b
obo$480bobo$481bobo$482bobo$483bobo$484bobo$485bobo$486bobo$487bobo$
488bobo$489bobo$490bobo$491bobo$492bobo$493bobo$494bobo$495bobo$496bob
o$497bobo$498bobo$499bobo$500bobo$501bobo$502bobo$503bobo$504bobo$505b
obo$506bobo$507bobo$508bobo$509bobo$510bobo$511bobo$512bobo$513bobo$
514bobo$515bobo$516bobo$517bobo$518bobo$519bobo$520bobo$521bobo$522bob
o$523bobo$524bobo$525bobo$526bobo$527bobo$528bobo$529bobo$530bobo$531b
obo$532bobo$533bobo$534bobo$535bobo$536bobo$537bobo$538bobo$539bobo$
540bobo$541bobo$542bobo$543bobo$544bobo$545bobo$546bobo$547bobo$548bob
o$549bobo$550bobo$551bobo$552bobo$553bobo$554bobo$555bobo$556bobo$557b
obo$558bobo$559bobo$560bobo$561bobo$562bobo$563bobo$564bobo$565bobo$
566bobo$567bobo$568bobo$569bobo$570bobo$571bobo$572bobo$573bobo$574bob
o$575bobo$576bobo$577bobo$578bobo$579bobo$580bobo$581bobo$582bobo$583b
obo$584bobo$585bobo$586bobo$587bobo$588bobo$589bobo$590bobo$591bobo$
592bobo$593bobo$594bobo$595bobo$596bobo$597bobo$598bobo$599bobo$600bob
o$601bobo$602bobo$603bobo$604bobo$605bobo$606bobo$607bobo$608bobo$609b
obo$610bobo$611bobo$612bobo$613bobo$614bobo$615bobo$616bobo$617bobo$
618bobo$619bobo$620bobo$621bobo$622bobo$623bobo$624bobo$625bobo$626bob
o$627bobo$628bobo$629bobo$630bobo$631bobo$632bobo$633bobo$634bobo$635b
obo$636bobo$637bobo$638bobo$639bobo$640bobo$641bobo$642bobo$643bobo$
644bobo$645bobo$646bobo$647bobo$648bobo$649bobo$650bobo$651bobo$652bob
o$653bobo$654bobo$655bobo$656bobo$657bobo$658bobo$659bobo$660bobo$661b
obo$662bobo$663bobo$664bobo$665bobo$666bobo$667bobo$668bobo$669bobo$
670bobo$671bobo$672bobo$673bobo$674bobo$675bobo$676bobo$677bobo$678bob
o$679bobo$680bobo$681bobo$682bobo$683bobo$684bobo$685bobo$686bobo$687b
obo$688bobo$689bobo$690bobo$691bobo$692bobo$693bobo$694bobo$695bobo$
696bobo$697bobo$698bobo$699bobo$700bobo$701bobo$702bobo$703bobo$704bob
o$705bobo$706bobo$707bobo$708bobo$709bobo$710bobo$711bobo$712bobo$713b
obo$714bobo$715bobo$716bobo$717bobo$718bobo$719bobo$720bobo$721bobo$
722bobo$723bobo$724bobo$725bobo$726bobo$727bobo$728bobo$729bobo$730bob
o$731bobo$732bobo$733bobo$734bobo$735bobo$736bobo$737bobo$738bobo$739b
obo$740bobo$741bobo$742bobo$743bobo$744bobo$745bobo$746bobo$747bobo$
748bobo$749bobo$750bobo$751bobo$752bobo$753bobo$754bobo$755bobo$756bob
o$757bobo$758bobo$759bobo$760bobo$761bobo$762bobo$763bobo$764bobo$765b
obo$766bobo$767bobo$768bobo$769bobo$770bobo$771bobo$772bobo$773bobo$
774bobo$775bobo$776bobo$777bobo$778bobo$779bobo$780bobo$781bobo$782bob
o$783bobo$784bobo$785bobo$786bobo$787bobo$788bobo$789bobo$790bobo$791b
obo$792bobo$793bobo$794bobo$795bobo$796bobo$797bobo$798bobo$799bobo$
800bobo$801bobo$802bobo$803bobo$804bobo$805bobo$806bobo$807bobo$808bob
o$809bobo$810bobo$811bobo$812bobo$813bobo$814bobo$815bobo$816bobo$817b
obo$818bobo$819bobo$820bobo$821bobo$822bobo$823bobo$824bobo$825bobo$
826bobo$827bobo$828bobo$829bobo$830bobo$831bobo$832bobo$833bobo$834bob
o$835bobo$836bobo$837bobo$838bobo$839bobo$840bobo$841bobo$842bobo$843b
obo$844bobo$845bobo$846bobo$847bobo$848bobo$849bobo$850bobo$851bobo$
852bobo$853bobo$854bobo$855bobo$856bobo$857bobo$858bobo$859bobo$860bob
o$861bobo$862bobo$863bobo$864bobo$865bobo$866bobo$867bobo$868bobo$869b
obo$870bobo$871bobo$872bobo$873bobo$874bobo$875bobo$876bobo$877bobo$
878bobo$879bobo$880bobo$881bobo$882bobo$883bobo$884bobo$885bobo$886bob
o$887bobo$888bobo$889bobo$890bobo$891bobo$892bobo$893bobo$894bobo$895b
obo$896bobo$897bobo$898bobo$899bobo$900bobo$901bobo$902bobo$903bobo$
904bobo$905bobo$906bobo$907bobo$908bobo$909bobo$910bobo$911bobo$912bob
o$913bobo$914bobo$915bobo$916bobo$917bobo$918bobo$919bobo$920bobo$921b
obo$922bobo$923bobo$924bobo$925bobo$926bobo$927bobo$928bobo$929bobo$
930bobo$931bobo$932bobo$933bobo$934bobo$935bobo$936bobo$937bobo$938bob
o$939bobo$940bobo$941bobo$942bobo$943bobo$944bobo$945bobo$946bobo$947b
obo$948bobo$949bobo$950bobo$951bobo$952bobo$953bobo$954bobo$955bobo$
956bobo$957bobo$958bobo$959bobo$960bobo$961bobo$962bobo$963bobo$964bob
o$965bobo$966bobo$967bobo$968bobo$969bobo$970bobo$971bobo$972bobo$973b
obo$974bobo$975bobo$976bobo$977bobo$978bobo$979bobo$980bobo$981bobo$
982bobo$983bobo$984bobo$985bobo$986bobo$987bobo$988bobo$989bobo$990bob
o$991bobo$992bobo$993bobo$994bobo$995bobo$996bobo$997bobo$998bobo$999b
obo$1000bobo$1001bobo$1002bobo$1003bobo$1004bobo$1005bobo$1006bobo$
1007bobo$1008bobo$1009bobo$1010bobo$1011bobo$1012bobo$1013bobo$1014bob
o$1015bobo$1016bobo$1017bobo$1018bobo$1019bobo$1020bobo$1021bobo$1022b
obo$1023bobo$1024bobo$1025bobo$1026bobo$1027bobo$1028bobo$1029bobo$
1030bobo$1031bobo$1032bobo$1033bobo$1034bobo$1035bobo$1036bobo$1037bob
o$1038bobo$1039bobo$1040bobo$1041bobo$1042bobo$1043bobo$1044bobo$1045b
obo$1046bobo$1047bobo$1048bobo$1049bobo$1050bobo$1051bobo$1052bobo$
1053bobo$1054bobo$1055bobo$1056bobo$1057bobo$1058bobo$1059bobo$1060bob
o$1061bobo$1062bobo$1063bobo$1064bobo$1065bobo$1066bobo$1067bobo$1068b
obo$1069bobo$1070bobo$1071bobo$1072bobo$1073bobo$1074bobo$1075bobo$
1076bobo$1077bobo$1078bobo$1079bobo$1080bobo$1081bobo$1082bobo$1083bob
o$1084bobo$1085bobo$1086bobo$1087bobo$1088bobo$1089bobo$1090bobo$1091b
obo$1092bobo$1093bobo$1094bobo$1095bobo$1096bobo$1097bobo$1098bobo$
1099bobo$1100bobo$1101bobo$1102bobo$1103bobo$1104bobo$1105bobo$1106bob
o$1107bobo$1108bobo$1109bobo$1110bobo$1111bobo$1112bobo$1113bobo$1114b
obo$1115bobo$1116bobo$1117bobo$1118bobo$1119bobo$1120bobo$1121bobo$
1122bobo$1123bobo$1124bobo$1125bobo$1126bobo$1127bobo$1128bobo$1129bob
o$1130bobo$1131bobo$1132bobo$1133bobo$1134bobo$1135bobo$1136bobo$1137b
obo$1138bobo$1139bobo$1140bobo$1141bobo$1142bobo$1143bobo$1144bobo$
1145bobo$1146bobo$1147bobo$1148bobo$1149bobo$1150bobo$1151bobo$1152bob
o$1153bobo$1154bobo$1155bobo$1156bobo$1157bobo$1158bobo$1159bobo$1160b
obo$1161bobo$1162bobo$1163bobo$1164bobo$1165bobo$1166bobo$1167bobo$
1168bobo$1169bobo$1170bobo$1171bobo$1172bobo$1173bobo$1174bobo$1175bob
o$1176bobo$1177bobo$1178bobo$1179bobo$1180bobo$1181bobo$1182bobo$1183b
obo$1184bobo$1185bobo$1186bobo$1187bobo$1188bobo$1189bobo$1190bobo$
1191bobo$1192bobo$1193bobo$1194bobo$1195bobo$1196bobo$1197bobo$1198bob
o$1199bobo$1200bobo$1201bobo$1202bobo$1203bobo$1204bobo$1205bobo$1206b
obo$1207bobo$1208bobo$1209bobo$1210bobo$1211bobo$1212bobo$1213bobo$
1214bobo$1215bobo$1216bobo$1217bobo$1218bobo$1219bobo$1220bobo$1221bob
o$1222bobo$1223bobo$1224bobo$1225bobo$1226bobo$1227bobo$1228bobo$1229b
obo$1230bobo$1231bobo$1232bobo$1233bobo$1234bobo$1235bobo$1236bobo$
1237bobo$1238bobo$1239bobo$1240bobo$1241bobo$1242bobo$1243bobo$1244bob
o$1245bobo$1246bobo$1247bobo$1248bobo$1249bobo$1250bobo$1251bobo$1252b
obo$1253bobo$1254bobo$1255bobo$1256bobo$1257bobo$1258bobo$1259bobo$
1260bobo$1261bobo$1262bobo$1263bobo$1264bobo$1265bobo$1266bobo$1267bob
o$1268bobo$1269bobo$1270bobo$1271bobo$1272bobo$1273bobo$1274bobo$1275b
obo$1276bobo$1277bobo$1278bobo$1279bobo$1280bobo$1281bobo$1282bobo$
1283bobo$1284bobo$1285bobo$1286bobo$1287bobo$1288bobo$1289bobo$1290bob
o$1291bobo$1292bobo$1293bobo$1294bobo$1295bobo$1296bobo$1297bobo$1298b
obo$1299bobo$1300bobo$1301bobo$1302bobo$1303bobo$1304bobo$1305bobo$
1306bobo$1307bobo$1308bobo$1309bobo$1310bobo$1311bobo$1312bobo$1313bob
o$1314bobo$1315bobo$1316bobo$1317bobo$1318bobo$1319bobo$1320bobo$1321b
obo$1322bobo$1323bobo$1324bobo$1325bobo$1326bobo$1327bobo$1328bobo$
1329bobo$1330bobo$1331bobo$1332bobo$1333bobo$1334bobo$1335bobo$1336bob
o$1337bobo$1338bobo$1339bobo$1340bobo$1341bobo$1342bobo$1343bobo$1344b
obo$1345bobo$1346bobo$1347bobo$1348bobo$1349bobo$1350bobo$1351bobo$
1352bobo$1353bobo$1354bobo$1355bobo$1356bobo$1357bobo$1358bobo$1359bob
o$1360bobo$1361bobo$1362bobo$1363bobo$1364bobo$1365bobo$1366bobo$1367b
obo$1368bobo$1369bobo$1370bobo$1371bobo$1372bobo$1373bobo$1374bobo$
1375bobo$1376bobo$1377bobo$1378bobo$1379bobo$1380bobo$1381bobo$1382bob
o$1383bobo$1384bobo$1385bobo$1386bobo$1387bobo$1388bobo$1389bobo$1390b
obo$1391bobo$1392bobo$1393bobo$1394bobo$1395bobo$1396bobo$1397bobo$
1398bobo$1399bobo$1400bobo$1401bobo$1402bobo$1403bobo$1404bobo$1405bob
o$1406bobo$1407bobo$1408bobo$1409bobo$1410bobo$1411bobo$1412bobo$1413b
obo$1414bobo$1415bobo$1416bobo$1417bobo$1418bobo$1419bobo$1420bobo$
1421bobo$1422bobo$1423bobo$1424bobo$1425bobo$1426bobo$1427bobo$1428bob
o$1429bobo$1430bobo$1431bobo$1432bobo$1433bobo$1434bobo$1435bobo$1436b
obo$1437bobo$1438bobo$1439bobo$1440bobo$1441bobo$1442bobo$1443bobo$
1444bobo$1445bobo$1446bobo$1447bobo$1448bobo$1449bobo$1450bobo$1451bob
o$1452bobo$1453bobo$1454bobo$1455bobo$1456bobo$1457bobo$1458bobo$1459b
obo$1460bobo$1461bobo$1462bobo$1463bobo$1464bobo$1465bobo$1466bobo$
1467bobo$1468bobo$1469bobo$1470bobo$1471bobo$1472bobo$1473bobo$1474bob
o$1475bobo$1476bobo$1477bobo$1478bobo$1479bobo$1480bobo$1481bobo$1482b
obo$1483bobo$1484bobo$1485bobo$1486bobo$1487bobo$1488bobo$1489bobo$
1490bobo$1491bobo$1492bobo$1493bobo$1494bobo$1495bobo$1496bobo$1497bob
o$1498bobo$1499bobo$1500bobo$1501bobo$1502bobo$1503bobo$1504bobo$1505b
obo$1506bobo$1507bobo$1508bobo$1509bobo$1510bobo$1511bobo$1512bobo$
1513bobo$1514bobo$1515bobo$1516bobo$1517bobo$1518bobo$1519bobo$1520bob
o$1521bobo$1522bobo$1523bobo$1524bobo$1525bobo$1526bobo$1527bobo$1528b
obo$1529bobo$1530bobo$1531bobo$1532bobo$1533bobo$1534bobo$1535bobo$
1536bobo$1537bobo$1538bobo$1539bobo$1540bobo$1541bobo$1542bobo$1543bob
o$1544bobo$1545bobo$1546bobo$1547bobo$1548bobo$1549bobo$1550bobo$1551b
obo$1552bobo$1553bobo$1554bobo$1555bobo$1556bobo$1557bobo$1558bobo$
1559bobo$1560bobo$1561bobo$1562bobo$1563bobo$1564bobo$1565bobo$1566bob
o$1567bobo$1568bobo$1569bobo$1570bobo$1571bobo$1572bobo$1573bobo$1574b
obo$1575bobo$1576bobo$1577bobo$1578bobo$1579bobo$1580bobo$1581bobo$
1582bobo$1583bobo$1584bobo$1585bobo$1586bobo$1587bobo$1588bobo$1589bob
o$1590bobo$1591bobo$1592bobo$1593bobo$1594bobo$1595bobo$1596bobo$1597b
obo$1598bobo$1599bobo$1600bobo$1601bobo$1602bobo$1603bobo$1604bobo$
1605bobo$1606bobo$1607bobo$1608bobo$1609bobo$1610bobo$1611bobo$1612bob
o$1613bobo$1614bobo$1615bobo$1616bobo$1617bobo$1618bobo$1619bobo$1620b
obo$1621bobo$1622bobo$1623bobo$1624bobo$1625bobo$1626bobo$1627bobo$
1628bobo$1629bobo$1630bobo$1631bobo$1632bobo$1633bobo$1634bobo$1635bob
o$1636bobo$1637bobo$1638bobo$1639bobo$1640bobo$1641bobo$1642bobo$1643b
obo$1644bobo$1645bobo$1646bobo$1647bobo$1648bobo$1649bobo$1650bobo$
1651bobo$1652bobo$1653bobo$1654bobo$1655bobo$1656bobo$1657bobo$1658bob
o$1659bobo$1660bobo$1661bobo$1662bobo$1663bobo$1664bobo$1665bobo$1666b
obo$1667bobo$1668bobo$1669bobo$1670bobo$1671bobo$1672bobo$1673bobo$
1674bobo$1675bobo$1676bobo$1677bobo$1678bobo$1679bobo$1680bobo$1681bob
o$1682bobo$1683bobo$1684bobo$1685bobo$1686bobo$1687bobo$1688bobo$1689b
obo$1690bobo$1691bobo$1692bobo$1693bobo$1694bobo$1695bobo$1696bobo$
1697bobo$1698bobo$1699bobo$1700bobo$1701bobo$1702bobo$1703bobo$1704bob
o$1705bobo$1706bobo$1707bobo$1708bobo$1709bobo$1710bobo$1711bobo$1712b
obo$1713bobo$1714bobo$1715bobo$1716bobo$1717bobo$1718bobo$1719bobo$
1720bobo$1721bobo$1722bobo$1723bobo$1724bobo$1725bobo$1726bobo$1727bob
o$1728bobo$1729bobo$1730bobo$1731bobo$1732bobo$1733bobo$1734bobo$1735b
obo$1736bobo$1737bobo$1738bobo$1739bobo$1740bobo$1741bobo$1742bobo$
1743bobo$1744bobo$1745bobo$1746bobo$1747bobo$1748bobo$1749bobo$1750bob
o$1751bobo$1752bobo$1753bobo$1754bobo$1755bobo$1756bobo$1757bobo$1758b
obo$1759bobo$1760bobo$1761bobo$1762bobo$1763bobo$1764bobo$1765bobo$
1766bobo$1767bobo$1768bobo$1769bobo$1770bobo$1771bobo$1772bobo$1773bob
o$1774bobo$1775bobo$1776bobo$1777bobo$1778bobo$1779bobo$1780bobo$1781b
obo$1782bobo$1783bobo$1784bobo$1785bobo$1786bobo$1787bobo$1788bobo$
1789bobo$1790bobo$1791bobo$1792bobo$1793bobo$1794bobo$1795bobo$1796bob
o$1797bobo$1798bobo$1799bobo$1800bobo$1801bobo$1802bobo$1803bobo$1804b
obo$1805bobo$1806bobo$1807bobo$1808bobo$1809bobo$1810bobo$1811bobo$
1812bobo$1813bobo$1814bobo$1815bobo$1816bobo$1817bobo$1818bobo$1819bob
o$1820bobo$1821bobo$1822bobo$1823bobo$1824bobo$1825bobo$1826bobo$1827b
obo$1828bobo$1829bobo$1830bobo$1831bobo$1832bobo$1833bobo$1834bobo$
1835bobo$1836bobo$1837bobo$1838bobo$1839bobo$1840bobo$1841bobo$1842bob
o$1843bobo$1844bobo$1845bobo$1846bobo$1847bobo$1848bobo$1849bobo$1850b
obo$1851bobo$1852bobo$1853bobo$1854bobo$1855bobo$1856bobo$1857bobo$
1858bobo$1859bobo$1860bobo$1861bobo$1862bobo$1863bobo$1864bobo$1865bob
o$1866bobo$1867bobo$1868bobo$1869bobo$1870bobo$1871bobo$1872bobo$1873b
obo$1874bobo$1875bobo$1876bobo$1877bobo$1878bobo$1879bobo$1880bobo$
1881bobo$1882bobo$1883bobo$1884bobo$1885bobo$1886bobo$1887bobo$1888bob
o$1889bobo$1890bobo$1891bobo$1892bobo$1893bobo$1894bobo$1895bobo$1896b
obo$1897bobo$1898bobo$1899bobo$1900bobo$1901bobo$1902bobo$1903bobo$
1904bobo$1905bobo$1906bobo$1907bobo$1908bobo$1909bobo$1910bobo$1911bob
o$1912bobo$1913bobo$1914bobo$1915bobo$1916bobo$1917bobo$1918bobo$1919b
obo$1920bobo$1921bobo$1922bobo$1923bobo$1924bobo$1925bobo$1926bobo$
1927bobo$1928bobo$1929bobo$1930bobo$1931bobo$1932bobo$1933bobo$1934bob
o$1935bobo$1936bobo$1937bobo$1938bobo$1939bobo$1940bobo$1941bobo$1942b
obo$1943bobo$1944bobo$1945bobo$1946bobo$1947bobo$1948bobo$1949bobo$
1950bobo$1951bobo$1952bobo$1953bobo$1954bobo$1955bobo$1956bobo$1957bob
o$1958bobo$1959bobo$1960bobo$1961bobo$1962bobo$1963bobo$1964bobo$1965b
obo$1966bobo$1967bobo$1968bobo$1969bobo$1970bobo$1971bobo$1972bobo$
1973bobo$1974bobo$1975bobo$1976bobo$1977bobo$1978bobo$1979bobo$1980bob
o$1981bobo$1982bobo$1983bobo$1984bobo$1985bobo$1986bobo$1987bobo$1988b
obo$1989bobo$1990bobo$1991bobo$1992bobo$1993bobo$1994bobo$1995bobo$
1996bobo$1997bobo$1998bobo$1999bobo$2000bobo$2001bobo4bo$2002bobo3bobo
$2003bobo2b2o$2004bobo$2005bobo$2006bobo$2007bobo$2008bo!

Then the methuselah could take 20,000 generations or more depending on the amount of gliders that travel and hit the ash.

The longest-lasting methuselah would have a glider go through some kind of wide temporary loop where it travels for a long amount of generations before getting destroyed:

Code: Select all

x = 370, y = 384, rule = B3/S23
8b2o$8b2o4$2b2o$bobo$obo$bo7$6b2o$6bobo$6bo363$368bo$367bobo$366bobo$
366b2o!

[confocaloid]

[...]
I've been trying to make methuselahs that try to continue evolving NOT based on pure random chaos:
[...]

Another relevant forum thread is (Engineered) diehards. You can always add a noninteracting block to any engineered diehard, to turn it into an engineered methuselah.