1023 I guess 
If we can change or guess for the second time, I’ll go with 16.
Minimum number of moves 510
21 times is need to do it
Haha. Slightly nervous now because I worked this out on the back of an envelope, but I’m 99% sure my answer is correct.
337 i think is the right
127 
second calculation is 219
1 Like
16 moves is required.
82 this my answer)))
984 <<<<<<<<< ?? I gueass…
oh, i fix my number to 170
9841 I thinks.
could bee right?
394 . cant be wrong answer had been coded by AI. :)
my answer is 8 :) :)
Correct! (I’m pretty sure. If anyone who’s coded this has a dispute I’m happy to hear it, but I’ve worked this through a couple of times and 219 is what I get.)
471 <<< I guess, no no no?
my answer is 511 
17 it is obvious.))))