@Oleg. The real question is: The experts had NO knowledge how the bidding cards were placed and did not fully understand the details of the Polish club system. Yet they were able to predict the gap between the bidding cards for a large fraction of the bids, ONLY by looking ...
I assume that the experts did not have knowledge about the placement of the bidding cards when evaluating the bids (this is in contrast to Jassem when he did his evaluation of a couple of boards), otherwise their evaluation was indeed probably biased.
If the hand evaluation was indeed done ...
Appendix C lists only the 6 groups plus selected bids, no videos. In group 6 it says:
...
Russia
26. 11 z 2 Monaco
27. 3 z 2
...
This is the missing carriage return I was talking about. As far as I checked the listed videos match the selected bids. I ...
I did not measure anything, I just used the table on page 5. I believe the measurements come from Rui Marques. I had the same impression as you on the wide bids, but there is not enough data here to confirm this.
Yes, it is natural to place your bidding cards wider on other bids,such that the previous bid is still visible. I only wanted to state that it is not straightforward to come with a single distribution for narrow and wide gaps.
I believe there is a difference between cards placed on pass/x cards and cards placed on other bidding cards. Also I believe there is a difference for B and Z (hence the 8 examples provided to the observers). Given the statistics only a hint can be found from the ...
I agree. You need a bit more statistics on trigger-signal. Nicolas, I assume you have also looked at the hands where Z is not on lead, or where there was some bidding by BZ?