py_20241126


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1 - 2# transmuted Kings

Cheylan, Y.
1986

white Bb6 Sa7 Pc5c7 Rd2 Ka1 black Kb7 Pe7e5c4 Sf7 Bh1
#2 transmuted Kings(6+6)
: When a king is in check, it adopts the movement of the piece that threatens it for the duration of the check.
Here, if there were no Bh1, c5-c6 would mate, with the King adopting the pawn's march.

 

2 - h#2 3 solutions anti-circé with nightrider, camel and giraffe

Trommler, S.
2010

white Kg8 Na3 CAa4 GIb3 black Bd8a6 Pc7d5e5g7b5a5 Sd7c6 Kb4 Rh4
h#2 Anticirce(4+12)
🨢a3: Nightrider
🨷a4: Camel
🨍b3: Giraffe
: the capturing unit returns to its native square, which must be free
A special case is if the capture and rebirth squares are identical.
Two types of anti-circe: Calvet - authorised and Cheylan - prohibited.
Another special case concerns fairy pieces.
As they are necessarily the result of a promotion, they are reborn on the promotion square of the capture column.
: extended Knight
: bouncer (1,3)
: bouncer (1,4)

 

3 - 2x (capture by white on the second move) a) super-guards b) anti-guards

Shankar Ram, N.
2024

white Sd3 Kf6 black Pd5d6c7 Kc8
x2(2+4)
a)Super-guards
b)Anti-guards
: a unit cannot be captured if it is being ‘observed’ by a friendly unit
anti-guards : a unit can only be captured if it is ‘observed’ by a friendly unit

 

4 - h=2 2 solutions vaos & paos

McDowell, M & Stephenson B
1996

white WPc8e3 WVd8 Kd1 Bf3 black BPh5 BVf4 Kh2
h=2 2sol.(5+3)
🨵c8,e3 🨻h5: Paos
🨶d8 🨼f4: Vaos
: moves as a Rook but needs a hurdle to capture
: moves as a Bishop but needs a hurdle to capture

 

5 - serial selfmate 23 moves 2 solutions with Kangaroos and Grasshopper

Kotesovec, V.
2016

white Gh3 Kd8 Pg5 KAc6h4f1 black Kh7 Pg6 BKh8
ser-s#23 2sol.(6+3)
🨷c6, h4, f1 🨽h8: Kangaroos
🨟h3: Grasshopper
: moves on Queen's lines using a sautoir behind which it is placed

: Like the Grasshopper above, but with two sautoirs

 

6 - h=3,5 2 solutions parrain circe

Rallo, V.
2018

white Kd3 Pe4 Sc5 black Pd5d7 Sb1 Ke7
h=3.5 parrain circe(3+3)
2 solutions
: after a capture, the captured unit remains suspended on the square and makes an equipolent move to the next unit playing


 

7 - h#4 andernach b) anti-andernach

Bonavoglia, M.
2006

white Bc2 Kd2 black Kf7 Rh5
h#4(2+2)
a)Andernach
b)antiandernach
: after a capture, the capturing unit changes colour ( except for Kings)
: after a movement without capture, a unit changes colour (always excluding Kings)

 

8 - 2# breton advers

Gockel, H.
2021

white Qg7 Sa4h5 Pb3h3e4d3 Kb8 Bb1 Rd2 black Pc5d6d7e5f6g5f3 Rf5g4 Qh2 Bd1 Ke6 Sd5c4
#2 breton advers(10+14)
breton advers : after a capture, the capturing side removes another opposing piece of the same type from the board

 

9 - 2# breton advers

Gockel, H.
2022

white Rg8e2 Be6 Kc6 Pg3b3 Qg1 black Pf7c5d4e4f5h3a2 Be7 Ke5
#2 breton advers(7+9)

 

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