1.c6!. >A-1…Rxc6.2.Nxc6 wins easily with R up. >B-1…Nxe5.2.Rb8+!.Kf7.3.c7.Rc6 forced else white queens.4.c8=Q.Rxc8.5.Rxc8and white wins as he is exchange up. >C-1…Nb6.2.Rxb6!.Rxb6.3.c7.Rc6.4.Nxc6.Kd7. 5.Nxf7.Kxc7. And white wins easily being N and P up >D-1.. Nb8.2.Rxb8# >E-1…any other N move.2.Rb8# >F-1…any other move.2.cxd7 wins a piece and the pawn will shortly queen.
1. c6! should do it. 1. … Nxe5 What else? I f the knight moves anywhere else, then the pawn is unstoppable, e.g. 1. … Nf6 2.c7 Ra8 3.Rb8+ +- 1. … Nb6 2.Rxb6 Rxb6 3.c7! +- 2. Rb8+! Kf7 3. c7 Rc6 4. c8=Q Rxc8 5. Rxc8 and White has a rook for a knight, which should win in the long run.
Again: most of the time, pawns in endings are to be pushed forward. Especially free pawns on 6th rank. c6!! Either black loses his Rook or his Knight, or he trades his R for the N. Best defend is now: Nxe5, Rb8+, Kf7, c7, Rc6, c8Q,RxQ, RxR and this endgame (R+3p connected vs N+1+2p) is winning for white.
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I should proofread more carefully. That line I posted first omitted a couple of moves.
1. c6 Ne5
2. Rb8 Kf7
3. c7 Rc6
4. c8Q wins the exchange for a pawn.
1.c6 Nxe5
(White would be happier if black played 1…. Nc5 but it is too much to hope for)
2.Rb8+!Kf7
3.c7 Rc6
4.c8=Q Rxc8
5.Rxc8
White is exchange up.
Pawn push
pawn push
Win
1.c6!.
>A-1…Rxc6.2.Nxc6 wins easily with R up.
>B-1…Nxe5.2.Rb8+!.Kf7.3.c7.Rc6 forced else white queens.4.c8=Q.Rxc8.5.Rxc8and white wins as he is exchange up.
>C-1…Nb6.2.Rxb6!.Rxb6.3.c7.Rc6.4.Nxc6.Kd7. 5.Nxf7.Kxc7. And white wins easily being N and P up
>D-1.. Nb8.2.Rxb8#
>E-1…any other N move.2.Rb8#
>F-1…any other move.2.cxd7 wins a piece and the pawn will shortly queen.
Harry
C7
1. c6! should do it.
1. … Nxe5 What else? I f the knight moves anywhere else, then the pawn is unstoppable, e.g.
1. … Nf6 2.c7 Ra8 3.Rb8+ +-
1. … Nb6 2.Rxb6 Rxb6 3.c7! +-
2. Rb8+! Kf7
3. c7 Rc6
4. c8=Q Rxc8
5. Rxc8 and White has a rook for a knight, which should win in the long run.
Again: most of the time, pawns in endings are to be pushed forward. Especially free pawns on 6th rank.
c6!! Either black loses his Rook or his Knight, or he trades his R for the N. Best defend is now:
Nxe5, Rb8+, Kf7, c7, Rc6, c8Q,RxQ, RxR and this endgame (R+3p connected vs N+1+2p) is winning for white.
c6 wins
1. c6 N:e5 2. Rb1+ Kf7 3. c7 and wins.
Dear fajac,
1.c6 Nf6
2.Rb8#
Dear fajac,
1.c6 Nf6
2.Rb8#