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

[Nicolas.Dupont at math.univ-lille1.fr]

Solutions (probably too long) for other vacancies from the Knight :


> (1) Single checkmates by the promoted piece

>

> (1-1) promoted to Knight



> b1N# (vacant)


1.Cb1-c3   Pe7-e5   2.Ta1-b1   Ff8-a3   3.Pb2xa3   Pf7-f5
4.Tb1-b5   Pf5-f4   5.Tb5-d5   Pb7-b5   6.Pd2-d3   Pb5-b4
7.Re1-d2   Pb4-b3   8.Dd1-e1   Pb3-b2   9.Cc3-d1   Pb2-b1=C


> c8N# (vacant)


1.Pb2-b4   Pe7-e6   2.Pb4-b5   Re8-e7   3.Pb5-b6   Dd8-e8
4.Pb6xc7   Pb7-b6   5.Pg2-g4   Fc8-b7   6.Pg4-g5   Fb7-f3
7.Pe2xf3   Cb8-c6   8.Ff1-a6   Cc6-d8   9.Fa6-b7   Pa7-a6
10.Cg1-e2   Ta8-a7   11.Pc7-c8=C


> f1N# (vacant)


1.Pd2-d3   Pg7-g5   2.Cb1-d2   Pg5-g4   3.Cd2-b3   Pg4-g3
4.Re1-d2   Pg3xf2   5.Pg2-g3   Ff8-g7   6.Ff1-g2   Fg7-e5
7.Fg2-c6   Pd7xc6   8.Cg1-f3   Fc8-h3   9.Cf3-e1   Fh3-g2
10.Ph2-h3   Cg8-f6   11.Th1-h2   Pf2-f1=C


> g1N# (vacant)


1.Cg1-f3   Pd7-d5   2.Th1-g1   Fc8-h3   3.Pg2xh3   Pe7-e5
4.Tg1-g5   Pe5-e4   5.Tg5-f5   Pg7-g5   6.Pa2-a4   Pg5-g4
7.Pa4-a5   Pg4-g3   8.Pa5-a6   Pg3-g2   9.Pa6xb7   Pa7-a5
10.Pe2-e3   Pa5-a4   11.Re1-e2   Pa4-a3   12.Cf3-e1   Pg2-g1=C


Nicolas.