Playing via GUI disagrees with a golden game

golden-games/1515dfc7-4ed7-444d-a8cb-ac6b35e699bd/depth-4.txt

```
1. a4 -0.18
... Nc6 +0.02
2. c3 -0.19
... Na5 +0.21
3. d3 -0.18
... e6 +0.22
4. b4 -0.34
... Nc6 +0.86
5. b5 -0.33
... Na5 +0.86
6. e4 -1.14
... a6 +0.07
7. bxa6 -0.35
... Rxa6 +0.85
8. d4 -1.16
... Rb6 +0.86
```

But the game plays Rc6.