These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 0.96 s (backtrack: 0/20).

[ebuild  N     ] games-board/stockfish-18::gentoo  USE="optimize -debug -general-32 -general-64" CPU_FLAGS_X86="avx2 avx512dq avx512f popcnt sse" 110050 KiB

Total: 1 package (1 new), Size of downloads: 110050 KiB