Re: Progressive chess problem

1. d4
2. c5 cxd4
3. e4 e5 Bd2
4. e6 d3 dxc2 cxd1Q+
5. Kxd1 Ba5 Bxd8 Be7 Bxf8

"I think this shows that Black cannot run pawns to good enough effect,
so it will be better to play something like 6 Kxf8 f5 [to make mating
harder] then play four developing/defensive moves. Eg Nh6, Nc6, d5,
Bd7 [but I have not looked very hard at the resulting position]."

6. Kxf8 f5 Nh6 Nc6 d5 Bd7
7. Ba6 Bxb7 Bxa8 Nf3 Ng5 Nf7 Nxh8 takes both black rooks
8. a5 a4 a3 axb2 bxa1Q Qxe5 Qxh2 Qxh1+ takes the white rooks, but then:
9. Kd2 g4 gxf5 fxe6 exd7 Bxc6 d8Q#

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