Perhaps the whole thing is not as easy as they say.
Vitruvius IS a Hippo-derived, as I always said, and here is its output (on a small laptop dual core):
1 +9.13 11.... Dxd4 12.Cxd4 (0.00)
1 +0.76 11.... Th8 (0.00)
1 +0.72 11.... Tg8 (0.00)
1 +0.60 11.... Dd7 (0.00)
1 +0.50 11.... Dd6 (0.00)
1 +0.28 11.... Cc6 (0.00)
2 +0.14 11.... Cc6 12.d5 (0.00)
3 +0.20 11.... Cc6 12.d5 Cb4 (0.00)
4 +0.11 11.... Cc6 12.d5 Cb4 13.O-O Dd6 (0.00)
5 +0.24 11.... Cc6 12.Af4 f6 13.d5 Cb4 (0.00)
6 +0.36 11.... Cc6 12.Af4 f6 13.d5 Cb4 14.O-O Dd7 (0.01)
7 +0.28 11.... Cc6 12.Af4 f6 13.d5 Cb4 14.O-O Dd7 15.Tfe1 (0.01)
.....
14 +0.29 11.... Cc6 12.Af4 e6 13.O-O Df6 14.Ce2 Df5 15.Axc7 Tac8 16.Ad6 Tfd8 17.Aa6 Txd6 18.Axc8 Db5 19.Tfe1 Dxb2 20.Ab7 (0.41)
15 +0.37 11.... Cc6 12.Af4 e6 13.O-O Df6 14.Ce2 Df5 15.Axc7 Tac8 16.Ad6 Tfd8 17.Aa6 Txd6 18.Axc8 Db5 19.Tfe1 Dxb2 20.Ab7 (2.13)
15 +0.28 11.... Cc6 12.Ae3 Cb4 13.O-O Cc2 14.Tad1 Cxe3 15.fxe3 e6 16.d5 exd5 17.Axd5 Tb8 18.Ce4 f5 19.Cfg5 (3.36)
16 +0.36 11.... Cc6 12.Ae3 Cb4 13.O-O Cc2 14.Tad1 Cxe3 15.fxe3 e6 16.d5 exd5 17.Axd5 Tb8 18.Ce4 f5 19.Cfg5 (5.32)
16 +0.44 11.... Cc6 12.Ae3 Cb4 13.O-O Cc2 14.Tad1 Cxe3 15.fxe3 e6 16.d5 exd5 17.Axd5 Tb8 18.Ce4 f5 19.Cfg5 (10.00)
16 +0.39 11.... Cc6 12.d5 Cb4 13.O-O Dd7 14.Ce5 Df5 15.Te1 e6 16.dxe6 fxe6 17.Cf3 Tae8 18.Ae3 e5 19.Tad1 Dg4 20.Ae2 (10.07)
17 +0.45 11.... Dd6 12.O-O Cc6 13.Ae3 Tad8 14.Tac1 Db4 15.Cb5 Ca5 16.Ad3 c6 17.Cxa7 c5 18.b3 cxd4 19.Af4 Da3 20.Cxd4 Dxa2 21.Ae5+ Rg8 (13.37)
18 +0.37 11.... Dd6 12.O-O Cc6 13.Ae3 Tad8 14.Tac1 Db4 15.Cb5 Ca5 16.Ad3 c6 17.Cxa7 c5 18.b3 cxd4 19.Af4 Da3 20.Cxd4 Dxa2 21.Ae5+ Rg8 22.Tc2 (24.08)
18 +0.42 11.... Dd6 12.O-O Cd7 13.Ae3 Cf6 14.Ce5 a6 15.Ae2 b5 16.Af3 Tae8 17.a4 c5 18.Tad1 b4 19.Ce4 Cxe4 20.Axe4 f6 (25.34)
18
+0.42 11.... Dd6 12.O-O Cd7 13.Ae3 Cf6 14.Ce5 a6 15.Ae2 b5 16.Af3 Tac8 17.Tac1 c5 18.Tfd1 Tfd8 19.h3 b4 20.Cc4 De6 (37.82)
...
As seen, the first move is equal to all the Hippo (even if the evaluation is different) but
the final score is completely different from zero. After 60 seconds it stabilizes at about +0.48 / +0.50...
According to the arguments I've read, Vitruvius should be considered "virgin" ... But instead he is a "sailed woman"!