I try exactly the same thing - but using the EC and clustering the events into 1 in 3 and using same Matrix - it can explore two options - bet for a bias or bet against for events to repeat
(as with your example)
333 a
331 b
332 c
311 a
312 b
313 c
322 a
321 b
323 c
- - -
222 a
221 b
223 c
211 a
212 b
213 c
233 a
232 b
231 c
- - -
111 a
112 b
113 c
122 a
121 b
123 c
133 a
131 b
132 c