Congrats, Zero Angel.
I created another chess puzzle with a somewhat related idea
here.
Now, the solution to the
previous puzzle is:
Don't cheat!
Solution:
1. c3 bxc3
2. Ne4 c2
3. Nc5+ dxc5
And there is a draw by stalemate.
If 1. ... Kxf6, then 2.cxb4 Ke5 3.Kb1 Kd4 4.Kc1 Kc4 5.Kd2 Kxb4 6.Kd3= Black loses his extra pawn, and the result is a draw: 6...Kc5 7.Kc3 Kd5 8.Kxb3 Kd4 9.Kc2 Ke3 10.b4 Kd4 11.Kb3 d5 12.b5 Kc5 13.Ka4 d4 14.b6 Kxb6 15.Kb4=
If 3...Kd5, then 4.Nxb3 Kc4 5.Nc1 d5 6.b4!= which is also a draw.
This is a variant of Stamma's Mate. By themselves, two knights and a king (or one knight and a king) cannot force checkmate, but in the right position a knight and a king can force checkmate against a knight and a pawn on the same "edge" file, either a or h.
This original composition is two knights and a king against a king and a pawn, and the result looks a bit like a game of a leapfrog.
From the position below, it's White to move and mate in five.
The FEN is:
8/8/5N2/8/4N2p/8/7k/4K3