I just tried the same puzzle in o3 using the same image input, but tweaked the prompt to say “don’t use the search tool”. Very similar results! It spent the first few minutes analyzing the image and cross-checking various slices of the image to make sure it understood the problem. Then it spent the next 6-7 minutes trying to work through various angles to the problem analytically. It decided this was likely a mate-in…
Whats going on? Did it just get lucky? Did it memorize the answer but misplace the pieces in its recall? Did it actually compute anything?
https://claude.ai/share/d640bc4c-8dd8-4eaa-b10b-cb3f83a6b94b
This is the board as it sees it (incorrect):
https://lichess.org/editor/kb6/pp6/2P5/8/8/3K4/8/R7_w_-_-_0_...