Hi Patrice. In the four jets, branch with btagging, we have:

+-------+--------------+--------------+
| Event |   krun       |   kevt       |
+-------+--------------+--------------+
|   159 |  45730.      |  8186.       | XX
|   409 |  46016.      |  16643.      |
|   412 |  46020.      |  10243.      | XX
|   516 |  46181.      |  1416.       | XX
|   683 |  46327.      |  9398.       | XX
|   870 |  46576.      |  7064.       | XX
|   902 |  46619.      |  247.        | XX
|  1211 |  46964.      |  9225.       | XX
|  1291 |  47083.      |  3135.       | 
|  1350 |  47157.      |  4736.       | 
|  1359 |  47138.      |  7079.       | XX
|  1588 |  47406.      |  5615.       | 
+-------+--------------+--------------+
==> 12 events satisfied the imposed cuts

The events marked with XX are selected also by the Wisc. nnet analysis.