Solution:
google/gemini-2.5-flash-lite
Guess
Reasoning
I systematically checked all possible dominoes from a double-six set. All dominoes are present on the board except for the 2-5 domino.
Incorrect
openai/gpt-5.6-luna
Guess
Reasoning
Checking the pip combinations across the board against all 28 dominoes in a double-six set, the 2-4 combination is the one that does not appear.
Incorrect
meta/muse-spark-1.2-contributor
Guess
Reasoning
The board contains 27 dominoes. A full double-six set has 7 dominoes containing a blank (0-0 through 0-6, 8 blank halves). The board shows 0-0, 0-1, 0-2, 0-3, 0...
Incorrect
qwen/qwen3.8-flash
Guess
Reasoning
By systematically scanning the board and tallying the frequency of each unique domino pair (0-0 through 6-6), 27 of the 28 possible dominoes in a double-six set...
Incorrect