2411030
In the morning of October 31, I noticed a new Top 20 Player badge among my HIDDEN achievements. I was surprised a bit, as I did not really put in maximum effort during the month. Maybe if I had done so I would have been among the top 10 and gotten a second prize t-shirt sent to me. On the Leaderboard of player ranking, I was 12th in the month with 1,999,555 points.
I had only done 6 HIDDENs by then, so I went and completed the remaining 6 HIDDENs (paying with 1 ZCredit each), to ensure that I did not get knocked off the list by the time SFI’s day ended about 19 hours later. And I even got more than 300 Rewardicals doing so. It took 111 minutes for all 12 games. My daily average for the month was only 6 games completed in 63 minutes. That last day was the only time I did 12 games in the month. (My final position at the end of the SFI day turned out to be 13th, as I was knocked down by the person that was just behind me.)

Despite the number of free games being reduced by SFI from 10 to 5 few months back, HIDDEN is still a good source of Rewardicals that can be exchanged for dollars or other things. In October it contributed the most for me at 44%, while so far in the year it has contributed the most at 53%. You may contact the author for tips on dramatically improving your HIDDEN scores.
It is also interesting to recall that the fastest I spotted the two white foxes to earn 250 Rewardicals was in 2 minutes on June 6, on the 6th word. I immediately ended the game so any more Rewardical-generating silver or white foxes coming up would fall into the next game, instead of their Rewardical potentials being wasted if I continued. 250 is the maximum Rewardicals possible in a game, even if more than 2 white foxes are spotted.