Qwen vs the computer inside its own weights

Qwen3.5-4B plays White and thinks out loud. Black is a chess engine running on a RISC-V CPU that is compiled into Qwen's own weights (Qwenputer): eleven extra layers whose RAM is the model's Gated DeltaNet state. When Qwen calls the chess tool, no program outside the model computes the reply — the model's layers execute the engine, instruction by instruction, and print its move.