Hello Mychess,

Are you thinking of a “best move/random” button? -- No!

For example "Russian defence":

In the opening library of Milan you will find the entry:

E2E4 E7E5 G1F3 G8F6 F3E5 (big letters are active)

F3E5 is the only active move in the opening book!

d2d4 - b1c3 - f1c4 - d2d3 ... are the passive moves in the opening book.

After d2-d4, the Milano actively plays F6E4 (only move) ...

After b1c3, the Milano actively plays B8C6 (only move) ...

After f1c4, the Milano actively plays B8C6 (only move) ...

After d2d3, the Milano actively plays D7D6 (only move) ...

Here is an excerpt from the opening library of Novag Constellation:

0178 E2-E4 E7-E5 G1-F3 G8-F6 F3-E5 D7-D6 E5-F3 F6-E4 D2-D4 D6-D5
0179 E2-E4 E7-E5 G1-F3 G8-F6 D2-D4 E5-D4
0180 E2-E4 E7-E5 G1-F3 G8-F6 D2-D4 F6-E4 F1-D3
0181 E2-E4 E7-E5 G1-F3 G8-F6 D2-D4 F6-E4 D4-E5

Novag Constellation naturally has a smaller opening library.

Another note:

The "small bug" is in line 145, not line 147!

Best regards

Udo