Here are some endings involving the knight. Set up the position and solve them. Solutions are at the bottom.
Problems
1. Lone knight against a pawn on the 7th rank. Black to play and draw. White Kd6, Pb7; Black: Kd3, Nd7
2. Knight against rook pawn. Black to play and draw. White: Kc5, Pa6; Black: Kc2, Nc6
3. Knight against pawn on the 7th. White to play and draw. White: Kf8, Nf4; Black: Kc1, Pc2
4. Knight against pawn on 5th rank. Black to play and draw. White: Kd6, Pb5; Black: Kg2, Nf4
5. Knight against pawn on 5th rank. Black to play and draw. White: Kd5, Pb5; Black: Kg2, Nd3
6. Knight against pawn on the 6th rank. Black to play and draw. White: Kc7, Pb6 Black: Kg7, Ne1
7. Knight against pawn of the 6th rank. Black to play and draw. White: Kh2, Pb6; Black: Kg7, Ne1
8. Knight against pawn on the 5th rank. (Tricky). White to play and draw. White: Kh2, Nb5; Black: Kd5, Pb4
9. Knight against pawn on the 6th rank. White to play and draw. White: Ke1, Ng2; Black: Kd3, Pb3
10. Pawn on the 5th rank wins with knight far away. White to play and win. White: Kb7, Pb5; Black: Kf7, Ng2
11. Pawn on the 6th rank wins with knight far away. White to play and win. White: Kg3, Pe6; Black: Kc4, Ne2
12. Pawn on 6th rank wins with the knight far away. White to play and win. White: Kd7, Pd6; Black: Kh4, Nc3
13. Pawn on 6th rank with the knight far away. White to play and win. White: Kd7, Pd6; Black: Kh4, Nd2
14. Rook pawn on the 6th rank wins if the king is kept away. White to play and win. White: Kd6, Ph6; Black: Kf4, Nd6
15. Knight stops rook pawn on the 5th rank. White to play and draw. White: Kc7, Nh8; Black: Kc3, Ph4
16. Knight stops rook pawn on the 7th rank if enemy king is far away. White to play and draw. White: Kc8, Nf2; Black: Kc6, Ph2
17. Knight stops rook pawn on the 4th rank. Black to play and draw. White: Ke5, Pa4; Black: Kh1, Nh5
18. Knight stops rook pawn on the 4th rank. White to play and draw. White: Kd8, Nh8; Black: Kb3, Pa5
19. Knight stops rook pawn on the 4th rank. Black to play and draw. White: Kd6, Pa4; Black: Kg1, Ng5
20. Knight stops rook pawn on the 5th rank. Black to play and draw. White: Ke7, Pa5; Black: Kg1, Ng5
21. Knight stops rook pawn on the 4th rank. White to play and draw. White: Ka6, Nc6; Black: Ke4, Ph5
22. Knight stops rook pawn on the 3rd rank. White to play and draw. White: Ka6, Na2; Black: Ke3, Ph6
23. Knight mates when enemy king is in the corner and has a rook pawn. White to play and win. White: Kc2, Nd3; Black: Ka2, Pa3
24. Knight mates king. White to play and win. White: Ke3, Ne2; Black: Kh2, Ph3
25. Zapata-Williams, Lucerne 1982. White to play and draw. White: Kd7, Na3; Black: Kc5, Pf4
26. Bastian-Behrens, 1984. Black to play and draw. White: Kc4, Pc2; Black: Kh3, Ng3
27. Wong-Danner, Thessaloniki 1984. Black to play and draw. White: Kb6, Pc6; Black: Ke6, Nb5
28. Zahraoui-Kilani, Thessaloniki 1984. Black to play and draw. White: Kg6, Ph5; Black: Kb7, Nd7
29. Behrhorst-Kurz, Germany 1987. Black to play and draw. White: Kc7, Pb6; Black: Ke7, Na2
30. Pieterse-Ninov, Amsterdam 1988. Advanced pawn wins. White to play and win. White: Kd5, Pc5; Black: Ke2, Nb1
31. Mumm-Teizer, Germany 1989. Knight stops a rook pawn on the 7th rank. White to play and draw. White: Ka5, Ng3; Black: Ke6, Ph2
32. Von Gleich-Bottema, Lugano 1989. Knight stops pawn on the 7th rank. White to play and draw. White: Ka4, Ng4; Black: Kd7, Pg2
33. Portisch-Spassky, Geneva 1977. Knight stops rook pawn on the 6th rank. Black to play and draw. White: Kd3, Pa6; Black: Kh4, Nb5
34. Grosar-De Assis, Biel 1993. Black to play and draw. White: Ka7, Pb6; Black: Kc7, Nc3
35. Podgaets-Tal, Alma Ata 1968. The rook pawn is advanced and should win. Tal is lost! But White settles for a draw and Tal swindles out of a lost position. White to play and win. White: Kf7, Ph4; Black: Kd8, Ne2
36. Douven-Miles, Wijk aan Zee 1989. Knight stops pawn on the 6th rank. White to play and draw. White: Kf3, Ng7; Black: Kd3, Pc3
37. Ubilava-Andrianov, New York 1990. White to play and draw. White: Kc1, Nb3; Black: Kf3, Pg3
38. Kupfer-Bachman, Germany 1991. White to play and draw. White: Kh2, Ng3; Black: Kb3, Pa4
39. Schatz-Nazarenus, Germany 1991. The pawn queens and delivers mate. Queen vs Knight. White: Kg7, Ph6; Black: Ke7, Nd7
40. Rossiter-Flear, Hastings 1993. Knight stops rook pawn on the 5th rank. Black to play and draw. White: Kg4, Ph5; Black: Kb6, Na6
41. Calvi-Bendler, Germany 1993. Knight stops rook pawn on the 6th rank. White to play and draw. White: Kc5, Nf5; Black: Kb3, Pa3
42. Kleuver-Arkell, Vienna 1993. Rook pawn on the 6th is supported by the king and wins. Black to play and win. White: Kf1, Ne3; Black: Kg3, Ph3
43. Mandl-Schrepp, Germany 1993. Knight stops pawn on 7th rank. Black misses the move to draw and should have lost! Instead, a draw is agreed. Black to play and draw. White: Kh6, Pg7; Black: Kf4, Ne5
44. Njobvu-Neto, Bratislava 1993. White to play and draw. White: Ka3, Na1; Black: Kg4, Ph7
45. Kelly-Gyimesi, Bratislava 1993. The king gets trapped in the corner and gets mated by the knight. Black to play and win. White: Kh7, Ph6; Black: Ke7, Ng4
46. Svatos-Jansa, Czechoslovakia 1994. The rook pawn on the 4th queens to win. Black to play and win. White: Kb5, Ne1; Black: Kg3, h5
47. Wall-Van Guilder, Guam 1974. Black to play and draw. White: Kc3, Pg6; Black: Ke1, Nh2
Solutions
1. 1...Nb8 2.Kc7 Na6 3.Kb6 Nb8, etc draws.
2. 1...Na7 2.Kb6 Nc8+ 3.Kb7 Nd6+ 4.Kc7 Nb5+ 5.Kb6 Nd6! (the only move to draw) 6.a7 Nc8+ 7.Kb7 Nxa7 draws.
3. 1.Ne2+! Kd1 2.Nc3+ Kd2 3.Na2 Ke3 4.Nc1 draws. 1.Ne2+ Kd2 2.Nd4! c1=Q 3.Nb3+ Kc2 4.Nxc1 draws Not 1.Nd3+?? Kd2 2.Nc5 Kc3 3.Ne4+ Kd3! (3...Kd4? 4.Nd2 Kc3 5.Ne4 Kd3!; or 3...Kc4! 4.Nd2+ Kb4 and the pawn Queens) 4.Nc5+ Kc4 and Black can now Queen its pawn.
4. 1...Nd3 2.b6 Nb4 3.b7 Na6 4.Kg6 Kf3 5.Kb6 Nb8 draws.
5. 1...Kf3 (or 1...Nf4+) 2.Kd4 Nf4! (not 2...Nb4?? 3.Kc4 Nc2 4.b6 Ne3+ 5.Kb5 Nd5 6.b7 Nc7+ 7.Kb6 Nd5+ 8.Kc6 Nb4+ 9.Kb5 and the White pawn Queens) 3.b6 Ne6+ 4.Kd5 Nd8 5.Kd6 Nb7 (or 5...Ke4 6.Kc7 Kd5 7.Kxd8 Kc6 8.b7 Kxb7 draw) 6.Kc6 Na5 7.Kb5 Nb7 draws
6. 1...Nd3 2.b7 Nc5 3.b8=Q Na6+ 4.Kb7 Nxb8 draws.
7. 1...Nf3! (not 1...Nd3?? 2.b7 and the pawn Queens) 2.Kg3 Nd4 (or 2...Ne5) 3.b7 Nc6 draws.
8. 1.Nc7+ Kc4 (1...Kc5 2.Na6+ and 3.Nxb4 draws) 2.Ne8! (2.Ne6?? b3 3.Ng5 b2 4.Ne4 Kd3 5.Nf2+ Kc2 and the pawn Queens) Kc5 (2...b3 3.Nd6+ Kb4 4.Ne4 b2 5.Nd2 Kc3 6.Nb1+ Kc2 7.Na3+ draws) 3.Nf6 Kd4 (3...b3 4.Ne4+ Kd4 5.Nd2 b2 6.Nb1 draws) 4.Ne8! (4.Nd7?? b3 5.Nb8 b2 6.Nc6+ Kc3 and the pawn Queens) Ke5 (4...b3 5.Nd6 b2 6.Nb5+ Kc4 7.Na3+ Kb3 8.Nb1 draws) 5.Nc7 Kd6 (5...b3 6.Nb5 b2 7.Na3 draws) 6.Ne8+! (6.Nb5+?? Kc5 7.Nc7 b3 8.Ne6+ Kc4 9.Ng5 b2 10.Ne4 Kd3 11.Nf2+ Kc2 and Black's pawn Queens) Kc5 (6...Kc6 7.Nf6 b3 8.Ne4 Kb5 9.Nd2 b2 10.Kg2 draws) 7.Nf6 Kd4 (7...b3 8.Ne4+ Kd4 9.Nd2 b2 10.Nb1 draws) 8.Ne8! b3 9.Nd6 Kc3 (9...b2 10.Nb5+ Kc4 11.Na3+ Kb3 12.Nb1 draws) 10.Ne4+ (10.Nb5+!! Kb4 11.Nd4 b2 12.Nc2+ Kb3 13.Nd4+ Kc3 14.Nb5+ Kb4 and Black's pawn Queens) Kc2 11.Nd6 b2 12.Nc4 b1=Q 13.Na3+ Kc1 14.Nxb1 draws.
9. 1.Kd1 b2 2.Nf4+ Kc3 3.Ne2+ (3.Nd5+?? Kb3) Kb3 4.Nc1+! bxc1=Q 5.Kxc1 draws.
10. 1.b6! Ne3 (1...Nf4 2.Kc8! Nd5 3.b7 Nb6+ 4.Kd8 and the pawn Queens) 2.Ka6 Nd5 3.b7 Nc7+ 4.Ka7 Nb5+ 5.Kb6 and the pawn Queens. Not 1.Ka8? Ne3 2.b6 Nd5 3.b7 Nb6+ 4.Kb8 Ke7 5.Kc7 Nd7 6.b8=Q Nxb8 draws. Not 1.Ka7? Nf4 2.b6 Ne6 3.b7 Nd8 4.b8=Q Nc6+ 5.Kb7 Nxb8 draws. Not 1.Ka6? Nf4 2.b6 Ne6 3.b7 Nc5+ 4.Kb6 Nxb7 draws. Not 1.Kc8 Ne3 2.b6 Nc4 3.b7 Nd6+ 4.Kc7 Nxb7 draws
11. 1.Kh2! Nd4 2.e7 and the pawn Queens and wins. Not 1.Kf2? Nc3 2.e7 Ne4+ 3.Ke3 Nd6 4.e8=Q Nxe8 draws. Not 1.Kg4? Nc3 2.e7 Nd5 3.e8=Q Nf6+ 4.Kf5 Nxe8 draws.
12. 1.Kc6! Ne2 2.d7 Nd4+ 3.Kd5 and the White pawn Queens. Not 1.Ke6? Ne4 2.d7 Nc5 3.Ke7 Nxd7 draws. Not 1.Ke7? Nd5+ 2.Kf7 Nb6 3.Kf6 Kg4 draws. Not 1.Kc8? Nd5 2.Kb7 Nf6 3.Kb6 Kg4 draws.
13. 1.Kc7! Ne4 2.d7 and the pawn Queens. Not 1.Ke7? Nc4 2.d7 Ne5 3.d8=Q Nc6+ 4.Kd7+ Nxd8 draws.
14. 1.h7 Nf7+ 2.Ke7 Nh8 3.Kf6! Kg4 4.Kg7 Kg5 5.Kxh8 Kg6 6.Kg8 and the pawn will Queen. Not 1.Ke7? Nf5+ and 2...Kxh6 draws. Not 1.Kd7? Nf7 2.h7 Nh8 3.Ke7 Kf5 4.Kf8 Kg6 5.Kg8 Nf7 6.h8=Q Nxh8 draws.
15. 1.Nf7 h3 2.Ng5 h2 3.Ne4+ Kc2 (3...Kd3 4.Ng3! Kc2 5.Kd6 Kd1 6.Ke5 Ke1 7.Kf5 Kf2 8.Kf4 draws; 3...Kd4 4.Nf2 Kc4 5.Kd6 draws) 4.Ng3 (not 4.Nf2?? Kd2 5.Kd6 Ke2 6.Nh1 Kf3 7.Ke5 Kg2 8.Kf4 Kxh1 9.Kf3 Kg1 and the pawn Queens) Kd1 5.Kd6 Ke1 6.Ke5 Kf2 7.Kf4 Kg2 8.Kg4 Kg1 9.Kh3 h1=Q 10.Nxh1 draws. Not 1.Ng6?? h3 2.Nf4 h2 3.Ne2+ Kd2 4.Ng3 Ke1 5.Kd6 Kf2 6.Ne4+ Kg2 and the pawn Queens.
16. 1.Kb8! Kd6 2.Kb7 Ke6 3.Kc6 Kf5 4.Kd5 Kf4 5.Kd4 Kf3 6.Nh1 Kg2 7.Ke3 Kxh1 8.Kf2 stalemate and draw. Not 1.Kd8?? Kd6 2.Ke8 Ke6 3.Kf8 Kf5 4.Kf7 Kf4 5.Kg6 Kf3 6.Nh1 Kg2 7.Kg5 Kxh1 8.Kg4 Kg1 and the pawn Queens.
17. 1...Ng7 2.a5 (2.Kd5 Kg2 3.a5 Nf5 4.a6 Ne7+ 5.Kd6 Nc8+ 6.Kc7 Na7 7.Kb6 Nc8+ 8.Kb7 Nd6+ 9.Kc7 Nb5+ 10.Kc6 Na7+ draws) Ne8 3.a6 Nc7 4.a7 Kg2 5.Kf6 Kf3 6.Ke7 Ke4 7.Kd7 Na8 8.Kc6 Ke5 9.Kb7 Kd6 10.Kxa8 Kc7 stalemate.
18. 1.Ng6! (1.Nf7?? a4 2.Ne5 Kc3 and the pawn Queens) a4 2.Nf4 Kc3 (2...a3 3.Nd3 Kc2 4.Nb4+ Kc3 5.Na2+ Kb3 6.Nc1+ Kc2 7.Na2 Kb1 8.Na4 Kb2 9.Nd3+ draws) 3.Nd5+ Kb3 4.Nf4 a3 5.Nd3 Kc2 6.Nb4+ Kc3 7.Na2+ Kb3 8.Nc1+ Kc2 9.Na2 Kb1 10.Nb4 draws.
19. 1...Nf3! 2.Kd5 (2.a5 Nd4 3.a6 Nb5+ 4.Kc6 Na7+ 5.Kb6 Nc8+ draws) Nh4! 3.a5 Nf5 4.Kc6 Nd4+ 5.Kb6 Nf5 6.a6 Nd6 7.Kc6 Nc8 8.Kc7 Na7 9.Kb6 Nb8+ draws. Not 1...Ne4+?? 2.Kc6 Nf2 3.a5 Nd3 4.Kb5 Kf2 5.a6 Nf4 6.a7 Nd5 7.Kc5 and the pawn Queens.
20. 1...Nf3! 2.a6 Nd4 3.Kd7 Nb5 4.Kc6 Na7+ 5.Kb6 Nc8+ draws. Not 1...Ne4?? 2.a6 and the pawn can't be stopped.
21. 1.Na5! h4 2.Nc4 h3 3.Nd2+ Ke3 4.Nf1+ Kf2 5.Nh2 Kg3 6.Nf1+ draws. Not 1.Nd8?? h4 2.Ne6 Kf5 3.Nd4+ Kg4 4.Nc2 Kf4 5.Nb4 h3 6.Nd5+ Kf3 and the Black pawn Queens.
22. 1.Nb4! (not 1.Nc3?? h5 2.Nd5+ Kf3 3.Nc7 h4 4.Ne6 Kg4 5.Nc5 h3 6.Kb5 h2 7.Ne4 Kf3 8.Nd2+ Kg2 and the pawn Queens) 1...h5 2.Nc6! (2.Nd5+?? Kf3 3.Nf6 h4 4.Nh7 Kf4 5.Nf6 h3 6.Nd5+ Kf3) h4 3.Ne5 h3 4.Ng4+ Kf3 5.Nh2+ Kg3 6.Nf1+ draws.
23. 1.Nb4+ Ka1 2.Kc1 a2 3.Nc2 mate
24. 1.Kf3! (not 1.Kf2? Kh1 2.Ng3+ Kh2 3.Nf5 Kh1 draws) Kh1 2.Kf2 (not 2.Ng3+? Kg1 3.Ne2+ Kf1 draws; not 2.Kg3? h2 draws) Kh2 (2...h2 3.Ng3 mate) 3.Nc3 (or 3.Nd4 Kh1 4.Nf5 Kh2 5.Ne3 Kh1 6.Nf1 h2 7.Ng3 mate) Kh1 4.Ne4 Kh2 5.Nd2 Kh1 6.Nf1 h2 7.Ng3 mate.
25. 1.Nc2 Kc4 2.Ne1. Draw agreed. If 2...Kd4 3.Nf3+ Ke3 4.Ne5 f3 5.Nxf3 draws. White could also play 1.Ke6 f3 2.Nb1 f2 3.Nd2 Kd4 4.Nf1 Ke4 5.Kf6 Kf3 6.Nf5 Ke2 7.Ng3+ Kd1 8.Kf4 which draws. Also, 1.Nb1 Kd4 2.Nd2 Ke3 3.Nc4+ Kf2 4.Ne5 draw.
26. 1...Kg4 2.Kd5 Kf5 and draw agreed. If 3.c4 Ne4 4.Kd4 Nf6 5.c5 Ne8 6.Kd5 Nc7+ 7.Kd6 Nb5+ 8.Kc6 Nd4+ 9.Kd5 Nc2 10.c6 Nb4+ 11.Kd6 Nxc6 draws. Any knight move by Black would also draw.
27. 1...Nd6 and draw agreed. If 2.c7 Kd7 3.c8=Q Nxc8 draws. Black could also play 1...Kd6 2.Kxb5 Kc7 3.Kc5 Kc8 4.Kd4 Kc7 draw. Not 1...Nd4?? 2.c7 Kd7 3.Kb7 and White's pawn Queens. 1...Na3 or 1...Nc3 also draws.
28. 1...Ne5+ 2.Kf5 Nf7 3.Kf6 Nh6 4.Kg5 Nf7+ 5.Kg6 Ne5+ 6.Kg7 Ng4 and draw agreed. If 7.Kf7 Nh6+ 8.Kf6 Ng4+ 9.Kf5 Nh6+ draws. Also, 1...Nf8+ 2.Kf7 Nh7 3.h6 Kc7 4.Kg7 Ng5 5.Kg6 Ne6 6.Kf6 Nf8 7.Kg7 Ne6+ 8.Kg6 Nf8+ 9.Kf6 Kd6 draws. But not 1...Nb6?? (or 1...Nb8??) 2.h6 Nd7 3.Kg7 Nc5 4.h7 Ne6+ 5.Kg8 and the pawn Queens.
29. 1...Nb4 2.b7 Na6+ and draw agreed. If 3.Kb6 Nb8 draws. Not 1...Nc3?? 2.b7 Nd5+ 3.Kc6 Nb4+ 4.Kb5 and the pawn Queens.
30. 1.b6 (the only move that wins) Nc3+ 2.Kc6 (not 2.Kc5? Na4+ draws; not 2.Kc4? Ne4 3.Kb5 Nd6+ 4.Kc5 Nb7+ 5.Kc6 Na5+ 6.Kc7 Kd3 draws; 2.Kd6 also wins. 2...Kd3 3.b7 Nb5+ 4.Kd7 and the pawn Queens) Na2 3.b7 (not 3.Kc7? Nb4 4.b7 Na6+ 5.Kc6 Nb8+ draws) Nb4+ 4.Kb5 (not 4.Kc7 Na6+ draws; also 4.Kb6 Nd5+ 5.Ka6 Nc7+ 6.Ka5 wins as the pawn Queens) and Black resigns.
31. 1.Kb4 Ke5 2.Kc3 Kf4 3.Nh1 Kf3 4.Kd2 and draw agreed. If 4...Kg2 5.Ke2 Kxh1 6.Kf2 stalemate. Not 1.Ka4?? Ke5 2.Kb3 Kf4 3.Ne2+ Kf3 4.Nd4+ Kg2 and the pawn Queens. Also ok is 1.Kb5 Ke5 2.Kc4 Kf4 3.Nh1 Ke4 4.Kc5 Kf3 5.Kd4 Kg2 6.Ke3 Kxh1 7.Kf2 stalemate. White can also play 1.Nh1 Kf5 2.Kb5 Kf4 3.Kc4 Ke4 4.Kc5 Kf3 5.Kd4 Kg2 6.Ke3 Kxh1 7.Kf2 stalemate.
32. 1.Ne5+ (not 1.Nf6+?? Ke6 and the pawn Queens) Ke6 2.Nf3 Kf5 (or 2...Kd5 3.Kb3 Ke4 4.Ng1 Ke3 5.Kc3 Kf2 6.Nh3+ Kf3 7.Ng1+ Kg3 8.Kd3 draws) 3.Nh4+ and draw agreed.
33. 1...Kg5 2.Kc4 Nc7 3.a7 Kf6 and draw agreed. If 4.Kc5 Ke7 5.Kb6 Kd7 6.Kb7 Kd8 7.a8=Q Nxa8 draws. Also 1...Na7 2.Kc4 Kg5 3.Kc5 Nc8 4.Kc6 Kf6 5.Kc7 Na7 6.Kb7 Nb5 7.Kc6 Na7+ 8.Kc7 Nb5+ 9.Kb7 Nd6+ 10.Ka8 Nb5 11.Kb8 Ke6 draws. Also 1...Nc7 2.a7 Kg5 3.Kc4 Kf6 4.Kc5 Ke7 5.Kb6 Kd7 6.Kb7 Kd8 draws.
34. 1...Kc6 (not 1...Kd7?? 2.b7 Nb5+ 3.Kb6 and the pawn Queens) 2.b7 Nb5+ 3.Ka8 Nc7+ 4.Kb8 Kb6 (or 4...Na6+ 5.Kc8 Kb6) 5.Kc8 Na6 and draw agreed.
35. 1.h5 Nf4 and Black asks for a draw. White accepts. But he is winning. After 2.h6 Nh3 3.Kf6! (not 3.h6? Ng5+ and 4...Nxh7, draw. Not 3.Kg7? Ng5 4.Kf6 Nh7+ 5.Kf7 Kd7 6.Kg7 Ke7 7.Kxh7 Kf7 8.Kh8 Kf8 9.h7 Kf7 stalemate) Nf4 4.h7 Nd5+ 5.Kf7 (or 5.Kg7) the pawn Queens and wins.
36. 1.Ne6 (not 1.Nf5?? c2 and the pawn Queens) c2 2.Nf4+ (not 2.Nc5+?? Kc4 and the pawn Queens) Kd2 (or 2...Kc3 3.Ne2+ Kd2 4.Kf2 draws) 3.Ne2 c1=N 4.Nxc1 Kxc1 and draw agreed.
37. 1.Nd4+ (not 1.Nd2+?? Ke2 2.Ne4 g2 and the pawn Queens) Kf2 2.Kd2 g2 3.Ne3 and draw agreed. White can also play 1.Kd1 g2 2.Nd4+ Kg3 3.Ne2+ Kf2 4.Kd2, which draws.
38. 1.Ne2 Kb2 (or 1...a3 2.Nc1+ Kb2 3.Nd3+ Kc2 4.Nb4+ Kb3 5.Nd3 Kc3 6.Nc1 draws) 2.Nf4! (2.Nd4?? a3 and the pawn can't be stopped from Queening) Kc2 (2...a3 3.Nd3+ Kc2 4.Nb4+ Kc3 5.Na2+ draws) 3.Nd5! Kb3 (3...a3 4.Nb4+ Kc3 5.Na2+ Kb3 6.Nc1+ draws) 4.Nf4 and draw agreed. If 4...a3 5.Nd3 Kc4 6.Nc1 Kc3 7.Na2+ Kb3 8.Nc1+ Kc2 9.Kb1 Nb4 drawn. Not 1.Ne4?? a3 2.Nc5+ Kc4 3.Ne4 a2 4.Nd2+ Kc3 5.Ne4+ Kb2 and the pawn Queens. Not 1.Nf1?? a3 2.Nd2+ Kc2 3.Nf3 a2 4.Ne1+ Kb1 and the pawn Queens.
39. 1.h7 Nf6 2.h8=Q Ne8+ 3.Kg6 Nd6 4.Qe5+ Kd7 5.Qf4 Ne8 6.Kf7 Nd6+ 7.Kf8 Kc6 8.Ke7 Nb5 9.Qc4+ Kb6 10.Kd7 Na7 11.Qb4+ Ka6 12.Kc7 Nb5+ 13.Kc6 Na7+ 14.Kc5 Nc8 15.Qb8 Na7 16.Qb6 mate
40. 1...Nc5 2.h6 Nd7 (2...Ne6?? 3.h7 and the pawn Queens) 3.Kg5 (3.h7? Nf6+ and 4...Nxh7 draws) Nf8 4.Kf6 Kc6 5.Kg7 Ne6+ 6,Kg8 Ng5 7.Kg7 Kd6 8.Kg6 Ne6 9.Kf6 Nf8 10.Kg7 Ne6+ 11.Kg8 and draw agreed. Not 1...Nc7?? 2.h6 Ne8 3.Kg5 Nd6 4.h7 Kc7 5.Kg6 and the pawn Queens.
41. 1.Nd4+ (Not 1.Ne3?? a2 and the pawn Queens) Kb2 (1...Kc3 2.Nb5+ and 3.Nxa3 draws) 2.Kb4 (or 2.Kc4) a2 3.Nb3 and draw agreed.
42. 1...h2 2.Nf5+ Kh3 and White resigns. The pawn Queens. A self-mate would be 1...Kh2?? 2.Kf2 Kh1 3.Nf1 h2 4.Ng3 mate.
43. 1...Ng4+! (Black played 1...Nf7+?? and should have lost. White played 2.Kg6? when 2.Kh7 or 2.Kh5 wins! Now Black can't stop the pawn from Queening. Black responded with 2...Ne5+ and a draw was agreed.) 2.Kg6 Ne5+ 3.Kh7 Ng4 4.Kg8 Nf6+ 5.Kf8 Kf5 draws.
44. 1.Kb2 h5 2.Nc2 Kf4 3.Nd4 (not 3.Kc1?? h4 4.Nb4 h3 5.Nd5+ Kf3 and the pawn can't be stopped) h4 4.Ne2+ and draw agreed. After 4...Kf3 5.Ng1+ Kf2 6.Nh3+ Kg2 7.Nf4+ Kf3 8.Nh3 Kg3 9.Ng5 drawn.
45. 1...Kf7 (the only move to win) 2.Kh8 Ne5 (not 2...Nf6? 3.h7 and any move by Black, except 3...Nxh7, is a stalemate) 3.Kh7 Nd7 and White resigns. After 4.Kh8 Nf8 5.h7 Ng6 mate.
46. 1...h4 2.Nc2 Kf2! (2...h3? 3.Ne3 Kf4 4.Nf1 draws; 2...Kg2? 3.Ne3+ Kf3 4.Nf1 h3 5.Kc4 Kf2 6.Nh2) 3.Nb4 h3 4.Nd3+ Kg3 (4...Kg2? 5.Nf4+) and White resigns. After 5.Nc1 h2 6.Ne2+ Kf2 the pawn Queens. Not 1...Kf2? 2.Nd3+ Kf1 3.Kc4 h4 4.Nf4 Kf2 5.Kd4 Kf3 6.Ke5 draws.
47. 1...Ng4 (the only move to draw) 2.Kd4 (2.g7 Nh6 3.Kd3 Kf2 4.Ke4 Kg3 5.Ke5 Kg4 6.Kf6 Kh5 draws) Nh6 3.Ke5 Kf2 4.Kf6 Ke3 (4...Ng4+?? 5.Kg5 Ne5 6.g7 Nf7+ 7.Kh5 and the pawn Queens) 5.Kg5 Ng8 6.g7 Ke4 7.Kg6 Ke5 and a draw was agreed.