Add magic square game (#7109)

* Add magic square game * fix test function name * lint * coverage * nits from viathor * nits from Nour * add copyright notice
quantumlib · Mar 3, 2025 · 3b9eceb · 3b9eceb
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diff --git a/examples/README.md b/examples/README.md
@@ -36,6 +36,8 @@ Here is a summary of the examples found in this directory:
     by Harrow, Hassidim, and Lloyd.
 *   [`hidden_shift_algorithm.py`](hidden_shift_algorithm.py):
     demonstration of a Hidden Shift algorithm.
+*   [`magic_square.py`](magic_square.py):
+    demonstration of the Mermin-Peres magic square game.
 *   [`noisy_simulation_example.py`](noisy_simulation_example.py): example
     of a noisy circuit using the `cirq.ConstantQubitNoiseModel` class.
 *   [`phase_estimator.py`](phase_estimator.py): example of a phase