[Retros] two more improvements

[andrew buchanan]

In Excel, it's easy to set up a filter on columns to see what the
values are. The longest record mates we had took 24 moves. Better are:

gN
rnbq1bN1/pppp1p2/4pk1B/5r2/3P2R1/8/PPP1PPP1/RN1QKBN1
PG in 8.5

bB
1nbq1bnr/1ppkpppp/8/3N4/R3r3/2PK4/3PPPPP/1bB2BNR
PG in 9.0

The longest record is now 22...

Cheers,
Andrew.