Solution:
google/gemini-2.5-flash-lite
Guess
Reasoning
I have systematically checked all dominoes present on the board and compared them against the complete set of double-six dominoes. I found that the domino with...
Incorrect
openai/gpt-5.6-luna
Guess
Reasoning
Comparing the visible dominoes against all 28 combinations in the double-six set, every pair appears except 3-5, which is therefore the missing domino.
Incorrect
meta/muse-spark-1.2-contributor
Guess
Reasoning
The board shows 27 dominoes. Counting blank (0) halves gives 7 visible (0-0 counts as two) versus 8 in a full double-six set, so the missing domino contains a s...
Incorrect