The 1400 DB has over 6,000 pawn mates, most are in the ending.
Here are 7 ten moves or under starting with the shortest game (so far).
Degenerate - matzdr. RHP 18.02.2009
1.e4 Nf6 2.e5 Nd5 3.Bc4 Nb6 4.Bb3 d6 5.Qf3 Nc6 6.Qxf7+ Kd7 7.e6 mate.
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bugatti - Ciccone. RHP 01.12.2009
1.d4 e6 2.c4 h6 3.Nf3 c5 4.e3 f6 5.Bd3 Nc6 6.Bg6+ Ke7 7.d5 Ne5 8.d6 mate.
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valera0000 - sameeh. RHP 21.12.2007
1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 Nxc3 5.dxc3 d5 6.Bb5+ Nd7 7.e6 a6
8.Ne5 axb5 9.exf7 mate.
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FelixMc - Xanadu777. RHP 01.03.2005
1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.e5 Bb4+ 5.Bd2 Qe7 6.a3 Nxe5 7.Ke2 Nc4+
8.Kd3 Nxb2+ 9.Kxd4 Nf6 10.Qe1 c5 mate.
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Welsh Witch - 8D. RHP 23.04.2008
1.e4 c5 2.f4 e5 3.f5 Qh4+ 4.g3 Qxe4+ 5.Be2 Qxh1 6.Kf2 Qxh2+ 7.Kf3 e4+
8.Kg4 Nf6+ 9.Kf4 Qh6+ 10.Ke5 d6 mate.
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Fleabitten - desertdog85. RHP 17.12.2008
1.e4 e5 2.Nf3 f6 3.Nxe5 fxe5 4.Qh5+ Ke7 5.Qxe5+ Kf7 6.Bc4+ Kg6 7.Qf5+ Kh6
8.d3+ Qg5 9.Bxg5+ Kh5 10.g4 mate.
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Buffoon - sameeh. RHP 24.09.2009
1.e4 c5 2.c3 Nc6 3.Nf3 e5 4.Bc4 h6 5.d3 Na5 6.Bxf7+ Kxf7 7.Nxe5+ Kf6
8.Qh5 d6 9.Qf7+ Kxe5 10.f4 mate.
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mrdougie - Hamish McLobbie. RHP 28.06.2010
1.e4 Nf6 2.e5 Nd5 3.Nf3 d6 4.Bc4 Nb6 5.Bxf7+ Kxf7 6.Ng5+ Kg8 7.Qf3 Qe8
8.e6 Qg6 9.Qf7+ Qxf7 10.exf7 mate.