Quantum

The Cost of a Real Grover Oracle: Minecraft Seed Search from Software to Quantum Hardware

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Briefings

A new quantum search oracle for Minecraft 1.13.1 seed recovery uses specialized arithmetic to reduce circuit qubits from 467 to 275 and gate counts from 2 million to 48,896. Experiments on IBM and Quantinuum hardware show marked-state probability increases for the optimized construction compared to the baseline, though results depend on execution context.

Key points

• The study presents a quantum search oracle for Minecraft 1.13.1 seed recovery using a structure-placement predicate combined with a reversible inverse transform of the linear congruential generator for 32-bit residual search.
• Reduced-width arithmetic reduces the oracle's circuit qubit count from 467 to 275 and the two-qubit gate count from 2,038,804 to 48,896, with a significant increase in marked-state probability on specialized hardware.

Context

This research estimates the resource cost of applying quantum search to procedural content generation, specifically for Minecraft procedural generation. It compares a specialized arithmetic oracle against a standard register-to-register baseline to quantify hardware-specific routing sensitivities.

Limitations

Results are limited to specific IBM and Quantinuum processors; performance depends on execution context. Preprint status (arXiv:2610.33139v1) and independent Java reference verification are noted, but production-width circuit validation remains ongoing.

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