Nearly identical to BP1209, which is the same except the square is always empty (and the right side still has no squares, empty or not).
Adjacent-numbered pages: BP1216 BP1217 BP1218 BP1219 BP1220  *  BP1222 BP1223 BP1224 BP1225 BP1226
stub
Aaron David Fairbanks
Nearly identical to BP1221, which is the same except non-empty squares are allowed.
See BP24 for "circle present vs. not".
Adjacent-numbered pages: BP1204 BP1205 BP1206 BP1207 BP1208  *  BP1210 BP1211 BP1212 BP1213 BP1214
stub, left-narrow, traditional