Knights and Pawn Ending Challenge

White to move and win. You should compare the different moves white could have made at move 1- only one of them wins.

3n4/8/3P4/3p4/3K4/8/3N4/3k4 w - - 0 1

Comments
No. 1-8
Yancey_Ward
Yancey_Ward

Editor

Well done.

Alena
Alena

In the second variation is a win because the white knight can manoeuvre freely and use distraction when it is needed.

1.Kc8 Nb6
2.Kc7 Nd5+
3.Kc6 Nf6
4.Nf4 Kf3
5.Nh5 Nxh5
6.d7

In the first variation is a draw because the white knight is restricted and it can't use distraction.

1.Ke8 Nf6+
2.Kf7 Nd7
3.Ke6 Nb6
4.Nb4 Kb3
5.Nd5 Na4

Yancey_Ward
Yancey_Ward

Editor

I pulled these positions above from the Nalimov Tablebase so that we would have a firm understanding of the difference. The positions arise from 1.Nf3 using the most resistant move until the position is reached, then the 1.Nb3 position is derived by choosing the equivalent, symmetrical move from that first line.

Yancey_Ward
Yancey_Ward

Editor

Consider these two lines that are the analogs of each other where white has played 1.Nb3 vs 1.Nf3. Why is the first a draw but the other a win?8/3n1K2/3P4/8/8/3N4/2k5/8 w - - 0 1 vs 8/1K1n4/3P4/8/8/3N4/4k3/8 w - - 0 1

Yancey_Ward
Yancey_Ward

Editor

Yes, but where in your lines does this matter, and which knight is affected?



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