Solution:
google/gemini-2.5-flash-lite
Guess
Reasoning
The board contains 27 dominoes. I have systematically checked every possible domino from a double-six set (0-0 to 6-6) and found that the 3-5 domino is the only...
Incorrect
openai/gpt-5.6-luna
Guess
Reasoning
I compared the pip counts on each of the 27 visible dominoes against all 28 unique double-six combinations. Every combination appears except the 3-6 domino, whi...
Correct
meta/muse-spark-1.2-contributor
Guess
Reasoning
The board contains 27 dominoes. Systematically checking every unordered pair 0-0 through 6-6, all combinations appear once except 3-3 which never appears, so it...
Incorrect
qwen/qwen3.8-flash
Guess
Reasoning
By systematically examining the grid and cataloging all the dominoes present, we can identify which one is missing from the complete set of 28. The board contai...
Incorrect