[Retros] Shortest checkmates in shortest proof games

[Juha Saukkola]

Hello!

4 trivial improvements


>Promoted pawns (Q):

>b2

>Promoted pawns (R):

>b2


1.b4 g6  2.b5 Bg7  3.b6 Kf8  4.bxc7 b6  5.cxd8Q/R#
(4,5)


>Promoted pawns (Q):

>d2

>Promoted pawns (R):

>d2


1.d4 g6  2.d5 Bg7  3.d6 Kf8  4.dxc7 d6  5.cxd8Q/R#
(4,5)

Juha

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