White to move. How should White proceed?
7r/3N1Ppk/n6p/p4b2/P1Q5/1B6/KP5r/6q1 w – – 0 1
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1. f8N+ Rxf8 2. Nxf8+ Kh8 3. Qg8#
1. F8=k+, rxk 2. Kxr+, kh8 3. Qg8#
F8N! check!
I can easily solve the problem because my whole life was spent in under promotion.
1.f8=N+ Rxf8
2.Nxf8+ Kh8
3.Qg8#
There is a reason why the first promotion after the Queen is the Knight: it allows to gain tempos. The other underpromotions are due only to the need to avoid stalemates (as also N promotion does) and they depend more specifically on those patterns.
1. f8/N+ .. Rxf8 forced
2. Nxf8+ .. K h8 forced
3. Q g8#
This diagram reminds me that knights are very powerful pieces:
1. f8=N+ Rxf8
2. Nf8+ Kh8
3. Qg8#
Amazing.
1. f8N+ Rxf8 2.Nxf8+ Kh8 3.Qg8++
1.f8=N+.Rxf8.2.Nxf8#
Harry
1.f8=N+Rxf8
2.Nxf8+Kh8
3.Qg8#
Is it really this simple?!
1knight promotion ch
2knight ch
3q ch mate
1 f8=Q+ Rxf8
2 Nd7-f8+ Kh8
3 Qg8 #
f8N+ – Rxf8
Nxf8#
f8N+ – Rxf8
Nxf8+ – Kh8
Qg8#
f8N+ – Rxf8
Nxf8+ – Kh8
Qg8#
Black is threatening mate in a number of ways, including beginning with Nb4+, or Qb1+, followed by mate.
I find Black’s mate threats very persuasive, with White unable to counter with immediate checks, unless by moving the knight.
The move that seems the best –
1. f7-f8=Q prevents Nb4+, but does not stop
1….Qb1+
2. Ka3 Qxb2 mate.
The defensive move
1. Qc3 is met by
1….Nb4+
2. Ka3 Qa1+
3. Ba2 Qxa2 mate
Can anyone enlighten me as to how White can win here?
1. f8N+ Rxf8
2. Nxf8++