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

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

[ebuild  N f   ] games-board/tablebase-syzygy-0_pre20131213-r101::gentoo  USE="-6-pieces" 960897 KiB

Total: 1 package (1 new), Size of downloads: 960897 KiB
Fetch Restriction: 1 package