No.1756
Bruno Stucker
(Switzerland)
Original Fairy problems
JF-2023:
01.01.2023 - 31.12.2023
Definitions
+/- Russian translation
conditions | 'Protean Chess' | условия |
Protean Chess: | When a piece captures (King included), it takes the nature of the captured unit (without changing colour). A King capturing becomes a royal unit. |
No. 1756 Bruno Stucker
Switzerland
original - 30.06.2023
hs#3 64 twins (image below) 5+7
Protean Chess
Protean Chess
Solution: (click to show/hide)
*** see the full solution with comments in PDF
a)
1.Qf5 g2 2.Sg6 g1=B 3.Qg4+ Kxg6=rS#
b)
1.h4 Kxh4=rPP 2.Qd4 h5 3.Sg6+ Sxg6#
c)
1.Sg6 Sh7 2.Ke6+ Sg5+ 3.Kxe7=rPP Kxg6=rS#
d)
1.Sg6 Kxg6=rS+ 2.Kxe4=rPP rSe7 3.Qe6+ Sxe6=Q#
e)
1.Qe6 Sxe6=Q+ 2.Kxe6=rQ gxh3=PP 3.rQxh3=rP Kh4#
f)
1.h4 Kg4 2.Kxe4=rPP Kxf4=rPP 3.Qe5+ rPPxe5=rQ#
g)
1.g7 Sxe6=PP 2.Kxe6=rP+ Kg6 3.g8=Q+ Kf6#
h)
1.Qxg8=S Sxg6=PP 2.Kf6 PPg7 3.Kxg7=rP Kg6#
i)
1.Qf7 Se6 2.Kxe6=rS Sxg6=PP 3.rSf8 PPxf7=Q#
j)
1.Qf3+ Sxf3=Q 2.f5 Qxf5=PP 3.Kxf5=rP Kg5#
k)
1.Kd4+ Kxg6=rPP 2.Kxc4=rPP Se2 3.Qf7+ rPPxf7=rQ#
l)
1.f5 Sh7 2.f6 Sxf6=PP 3.Kxf6=rP+ Kg6#
m)
1.Qc5 g2 2.Kd5 g1=B 3.Kxc4=rPP+ Bxc5=Q#
n)
1.Kf5 e5 2.fxe5=PP e1=S 3.Qf3+ Sxf3=Q#
o)
1.Kf5 g1=Q 2.Qe4 Qg5+ 3.fxg5=Q+ hxg5=Q#
p)
1.h4 Kxh4=rPP 2.Kxd4=rPP h5 3.Qf6+ exf6=Q#
q)
1.Kxd4=rPP Sg6 2.rPPd3 Sh4 3.Qf5+ Sxf5=Q#
r)
1.Qc1 Kh4 2.Sg6+ Kxh3=rPP 3.Qe3+ dxe3=Q#
s)
1.Sf7 Kg6 2.Kxe6=rPP h5 3.Qg8+ Kf6#
t)
1.Sg6 Kxg6=rS+ 2.Kxd4=rPP rSh4 3.Qg3+ rSf5#
u)
1.Ke6 e1=B 2.Kxe7=rPP Bxh4=PP 3.Qe2+ Sxe2=Q#
v)
1.Sg6 Sxf4=PP+ 2.Kxf4=rP e6 3.Qe2+ Kxg6=rS#
w)
1.Sg6 Kxg6=rS+ 2.Kxd4=rPP rSxf4=rPP 3.Qe4+ Sxe4=Q#
x)
1.Kf4 Kxg6=rS+ 2.Kxg3=rPP rSh8 3.Qg8+ Sxg8=Q#
y)
1.Qb3 Sxe4=PP 2.Kxe4=rP Kxg5=rPP 3.Qe3+ dxe3=Q#
z)
1.h4 Sxe4=PP 2.Kxe4=rP hxg6=S 3.Qg4+ Kxg4=rQ#
.............
see the full solution with comments in PDF
(C+ by Popeye 4.87)
64 variations to checkmate the white king
64 consecutive tasks, each multiple has a different solution game, and yet all multiples are connected by the
same basic idea. Both the white and black inventiveness
in the solution games is amazingly rich; there are also
conversions (even all-conversion), sacrifices, zugzwang, hiding moves, and board-dominating moves to
be seen. 1 piece alone can keep the king or a royal piece
under control in Protean Chess, both for white and
black, e.g. a king can even mate the other king (as a royal
piece) alone!
Amazing task. I have not seen the other parts. But I don’t see mate in Part -C. The royal WP can move to f8.
Protean pawns move in the direction of the captured pawn. I.e. white protean pawns move down.
Right Thomas, but this is Popeye interpretation…the opposite for WinChloe (Protean pawns move in the direction of the captured pawn, i.e. white protean pawns move up)
Hmm. Wasn’t the captured pawn black if the Protean pawn is white?
WinChloe gives ‘fairy condition not treated’ for Protean men.
but e.g. in v) (‘upwards’ means ‘towards the 8th rank’)
1.Sg6 Sxf4=PP+ 2.Kxf4=rP e6 3.Qe2+ Kxg6=rS#
1… Sxf4 results in a black pawn that moves upwards (because the captured piece, a white pawn, moves upwards), so it’s a black Protean pawn. 2. Kxf4 results in a royal pawn that moves upwards as well (because the captured piece is a black Protean pawn that moves upwards), so it’s a regular royal pawn.
So when capturing a white pawn, a black piece turns into a black Protean pawn, when capturing a white Protean pawn, a black piece turns into a regular black pawn.