Game #520645- I have the knowledge tile that allows you to modify your die by +/- 1 for all beige building tiles without using a worker tile. I started my turn with 6 worker tiles, and attempted to change my die value from a 5 to a 3 to place it. According to my knowledge tile, it should have only taken 1 worker tile to turn my 5 into a 3. However, it cost me 2 worker tiles and I ended the turn with 4 worker tiles instead of the expected 5.
Actually, the die allows you to place a beige building to every eligible place with value between (die-1) and (die+1) so to place a die on a place numbered 3, you would have just had to modify the die from 5 to 4, then place it where you want (the eligible places are selectable according to your knowledges)
That's what I thought, too. However, the space was not "clickable" for me after I adjusted the die from a 5 to a 4. I had to use a second worker tile to go from a 4 to a 3 before it allowed me to place it on the space.