https://en.wikipedia.org/wiki/Square-free_word
Adjacent-numbered pages: BP1192 BP1193 BP1194 BP1195 BP1196  *  BP1198 BP1199 BP1200 BP1201 BP1202
precise, allsorted, notso, left-narrow, sequence, traditional, preciseworld, dithering, left-listable
Aaron David Fairbanks
All examples are a three by three grid of black or white squares.
Adjacent-numbered pages: BP1218 BP1219 BP1220 BP1221 BP1222  *  BP1224 BP1225 BP1226 BP1227 BP1228
stub, left-finite, right-finite, traditional, finishedexamples, fixedgrid, preciseworld
Adjacent-numbered pages: BP1264 BP1265 BP1266 BP1267 BP1268  * 
left-finite, right-finite, finishedexamples, preciseworld
Leo Crabbe