Peter Harris
(South Africa)


Original Problems, Julia’s Fairies – 2014 (III): September – December

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No.620 by Peter Harris – The only neutral Royal piece is on the board! How it can be mated? (JV)


Sentinels Pion neutre: When a piece (Pawn excluded) leaves a square outside the first and last rows, a white piece leaves a wP, a black piece leaves a bP and a neutral piece leaves a nP unless 8 Pawns of that color are already on the board.

Royal piece: Piece that executes a function of the King on the board.

No.620 Peter Harris
South Africa

original – 11.10.2014

Hint by author: (click to show/hide)

neutral royal sa8

ser-#8                                (0+0+1n)
Sentinels Pion Neutre
Royal piece Sa8

Solution: (click to show/hide)

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S. K. Balasubramanian
S. K. Balasubramanian
5 years ago

Peter Haris has always innovative ideas for his problems. This one is exceptionally good to conceive the imagination that a single piece on the board can be mated. As usual even with single piece his problem is not so easy to solve. Hats off to Peter!

Peter Harris
Peter Harris
5 years ago

In case it escapes notice I should have remarked that without a P on e6 there is no mate.

S. K. Balasubramanian
S. K. Balasubramanian
5 years ago
Reply to  Peter Harris

Yes, that is a hidden beauty of your problem.
In fact I tried to find if there is any cook and I could see that without Pe6 the Pe7 can defend by Pe7-e6.