[Retros] Pawn to-the-8th-rank mates

[andrew buchanan]

The latest batch...

gxhB found:
rnb1kbnr/pppp1pp1/4p2P/8/7q/4PK2/PPPPBP2/RNBQ2Nb
PG in 7.0

h1B improved from 19 to 16 moves:
rn2kbnr/ppp1pp1p/3q4/3p4/8/4RKPb/PPPPPP2/RNBQ2Nb
PG in 8.0

gxh1N improved from 17 to 13 moves
rnb1qbnN/pppppk2/5p2/8/6Q1/4P2p/PPPP1PP1/RNB1KBNR
PG in 6.5

bxa1N trimmed from 15 to 14 moves
rnb1kbnr/pp1ppppp/8/3P4/3q4/QK6/P1P1PPPP/nNB2BNR
PG in 7.0
suggest joint credit with Hiro for this one

cheers,
andrew.