 


Problem 1: A game ended with knight captures pawn on g2 with mate. How is 
that possible, if
a) black has done four moves?

b) black has done five moves and the ending position has a rook on h1 and
   1) whites bishops have not moved?
   2) whites bishop from f1 is on another square on the kingside?
   3) whites bishop from f1 is on the queenside?

c) black has done six moves and the ending position has a bishop on f1 and
   1) black has moved 3 pieces on the kingside?
   2) white has done 4 pawnmoves on the kingside?
   3) white has done 6 moves with a knight?
   4) whites king is on the second row?
   5) white has done 5 moves with a bishop? 
   6) white played 1.Nc3 and 6.Ne4?
   
d) black has done all nine moves with a knight and white has only moved a 
pawn?

e) black has done all ten moves with a knight and white has only moved the 
d-pawn?


Problem 2: A game ended with whites move 8.Nd6++ mate with a doublecheck. 
How is that possible, when white has only moved 2 pieces, black has only moved a 
pawn, the ending position has a knight on b1 and
a) the white queen is on e2?
b) the white queen is on a4?


Problem 3: A game ended with whites move 9.Nd6+ mate. How is that possible, 
when white has only moved a knight and black has only moved a pawn?

Problem 4: A game ended in five moves with knight captures pawn on h2 with 
mate. 4 solutions each with a different placement of the black queen.


Origin: from the danish Skakbladet 1988, that many 
readers and I discovered had several solutions. It was a pity for the problem, 
but with a new presentation of the problem, I have turned a faulty problem into 
four new tasks. The author is C.D.Locock, and the problem was 
published in Fairy Chess Review august 1946.



Solution 1:
a) 1.e4,Nf6 2.Bc4,Nh5 3.Ne2,Nf4 4.Rf1,Nxg2+ mate.

b) 1) 1.e3,Nf6 2.Nc3,Ng4 3.Nd5,Nxe3 4.Nxe7,Qxe7 5.a4,Nxg2++ mate.
         (the stipulation avoids white to play 2.b3 3.Ba3 and 4.Bxe7)
   2) 1.e4,Nc6 2.Ne2,Ne5 3.Ng3,Ng4 4.Be2,Ne3 5.Nf1,Nxg2+ mate.
   3) 1.e4,Nf6 2.Ba6,Nh5 3.Bxb7,Nf4 4.Bxa8,Ba6 5.Bd5,Nxg2+ mate.

c) 1) 1.h4,Nf6 2.h5,g6 3.hxg6,Nd5 4.Rxh7,Nf4 5.Rh1,Rxh1 6.Nf3,Nxg2+ mate.
   2) 1.e3,Nf6 2.f4,Ng4 3.f5,Nxe3 4.f6,exf6 5.Nh3,Qe7 6.Nf2,Nxg2++ mate.
         (the stipulation avoids white to use the d-pawn instead of the f-pawn)
   3) 1.Nf3,Nf6 2.Ng5,Ng4 3.Nxh7,Ne3 4.Ng5,Rxh2 5.Nf3,Rxh1 6.a4,Nxg2+ mate.
   4) 1.e3,Nf6 2.Nc3,Ng4 3.Nd5,Nxe3 4.Nxe7,Qxe7 5.Ke2,Qe4 6.a4,Nxg2+ mate.
   5) 1.e3,Nf6 2.Bd3,Ng4 3.Bxh7,Nxe3 4.Bd3,Rh6 5.Be2,Re6 6.Bf1,Nxg2++ mate.
         (the stipulation avoids white to play his queen to h7)
   6) 1.Nc3,e5 2.Nf3,Nf6 3.d3,Nh5 4.Kd2,Nf4 5.Ke3,Qg5 6.Ne4,Nxg2++ mate.

d) 1.a4,Nc6 2.a5,Ne5 3.a6,Ng4 4.axb7,Nxh2 5.bxa8N,Nxf1 6.Nb6,Ne3 7.Nc4,Nd5 
8.Ne3,Nf4 9.Nf1,Nxg2+ mate.

e) 1.d4,Nf6 2.d5,Ng4 3.d6,Nxh2 4.dxc7,Nxf1 5.cxb8N,Ng3 6.Nxd7,Nf5 7.Nc5,Nh4 
8.Ne4,Nf5 9.Ng3,Nh4 10.Nf1,Nxg2+ mate.









Solution 2:
1.Nc3,f5 2.Nd5,f4 3.Nxe7,f3 4.Nd5,fxe2 5.Nc3,exf1N 6.Ne4,Nxd2 7.Qe2,Nb1 
8.Nd6++ mate.
1.Nf3,d5 2.Ne5,d4 3.Nc6,d3 4.Nd4,dxc2 5.Nb5,cxb1N 6.Qb3,Na3 7.Qa4,Nb1 
8.Nd6++ mate.






Solution 3:
1.Nc3,c5 2.Nd5,c4 3.Nxe7,c3 4.Nf5,cxb2 5.Ng3,b1N 6.Nf5,Nc3 7.Ng3,Nd5 
8.Nf5,Ne7 9.Nd6+ mate.
5.-,b1R was also possible.





Solution 4:
a) 1.e3,d5 2.Ke2,Qd6 3.Kf3,Nf6 4.Ne2,Ng4 5.Rg1,Nxh2+ mate (intended 
solution).
b) 1.e3,Nf6 2.Ke2,Ng4 3.Kf3,e6 4.Ne2,Qh4 5.Rg1,Nxh2+ mate.
c) 1.e4,Nf6 2.Ke2,Ng4 3.Kf3,e6 4.Ne2,Qg5 5.Rg1,Nxh2+ mate.
d) 1.g3,Nf6 2.Bg2,Ng4 3.Bxb7,Bxb7 4.Kf1,Bxh1 5.Qe1,Nxh2+ mate (Qd8).


