py_20250701

1 - serial h#4 with launcher ( bouncer (2,4)), giraffe and zebra

Jelliss, G.
2024

white Kc1 Ng7 black Ka1 GId1

ser-h#4(2+2)
b) d1=zebra
🨢g7: bouncer (2,4)
🨓d1: giraffe

: it could be called a "double knight" since it makes a double knight step
: bouncer (1,4)
: bouncer (2,3)

Solution

{

} a) {
} 1.GId1-e5 2.GIe5-a4 3.GIa4-e3 4.GIe3-a2 {(controls e3)} Ng7-c5 # {

} b) +bZd1 {d1=zebra
} 1.Zd1-b4 2.Zb4-e2 3.Ze2-c5 4.Zc5-a2 {(controls c5)} Ng7-e3 #

2 - serial h6 with beetles

Luce, S.
2022

white Pe6c5 Kf1 SCb8g3 black Ra8 Ke8 Pd7c6h2

ser-h#6(5+5)
🨷b8, g3: beetles

: Grasshoppers doing a Knight's step from the jumper, but at a slight angle :
the Beetle b8, with the g3 jumper, controls h1 but not f1.

Solution

{

} 1.h2-h1=SC 2.SCh1*b8 {(jumper c6)
} 3.SCb8-h1 {(jumper g3)} 4.0-0-0 {
} 5.SCh1-b8 {
here, } 6.d7-d6 {would be illegal because bK would be checked by beetle g3.
hence the conclusion : } 6.d7-d5 ! c5*d6 ep. # ! {
Beetle g3 controls both b7 and c8.

Valladao theme.
For the uninitiated, there are the 3 bizarre chess moves: promotion, castling and prise en passant.}

3 - h#5 beetles

Luce, S.
2023

white Kh1 WSd6 black Kg3 BSc1

h#5(2+2)
🨷d6, 🨽c1: Beetles

Solution

{

} 1.Kg3-f2 Kh1-h2 2.Kf2-f1 + {(check by the Beetle c1)
} Kh2-g3 3.BSc1-h2 WSd6-h1 4.Kf1-g1 WSh1-e2 5.Kg1-h1 Kg3-f2 # ! {

Two Kings Circuit.}

4 - h#3 2 solutions einstein

Maeshima, H.
2021

white Bb8 Ka4 black Rd8 Bg8 Kh7 Pg7f5f4d5

h#3 2sol. einstein(2+7)

: a unit (other than King) changes each time it moves to the next strongest unit in the event of a capture,
immediately less strong if not capturing.

Solution

{

} 1.Kh7-h8 Bb8-d6=S 2.Bg8-h7=S Sd6*f5=B 3.Rd8-g8=B Bf5-g6=S # {

} 1.Rd8-f8=B Bb8*f4=R 2.Bf8-e7=S Rf4*f5=Q + 3.Se7-g6=P Qf5-h3=R # {

Black regression, white regression and promotion.}

5 - h#3 2 solutions transmuted Kings

Kekely, L.
2019

white Rf1 Kd4 black Pd2 Kh5 Sf8

h#3 2sol.(2+3)
transmuted Kings

: a King acquires the march of the unit which gives him check.
When it's not in check, it has its normal walk.

Solution

{

} 1.Kh5-h6 Rf1-f5 2.d2-d1=R + Kd4-g4 3.Sf8-g6 Rf5-h5 # {

} 1.d2-d1=Q + Kd4-g7 2.Sf8-h7 Rf1-f6 3.Sh7-g5 Rf6-h6 # {

Mates in mirror echo (chameleon).}

6 - 2# with royal Bulgarian grasshopper

Petkov, P.
2020

white Pa2 Bf6 Kf3 black Pb4b5d6b7 black Royal Gh3

#2(3+5)

🨥h3: royal Bulgarian grasshopper

: moves along the Queen's lines using a jumper behind which she lands
In addition, when she is Bulgarian, she can only play if the jumper can make an imitative move in reply
(of Grasshopper, therefore), so.
: piece invested within the royal prerogatives with the march of the grasshopper

Solution

{

Tries :
} 1.Kf3-g3 + ? rGh3-f3[-g3][+wKc7] ! {
} 1.Kf3-g4 + ? rGh3-f5[-g4][+wKa4] ! {
} 1.Kf3-g2 + ? rGh3-f1[-g2][+wKa8] ! {
} 1.Bf6-c3 ? rGh3-e3[-f3][+wKa8] ! 2.Bc3-d2 + rGe3-c1[-d2][+wBa5] ! {
} 1.Bf6-d8 ? b4-b3 ! {(but not} 1...rGh3-e3[-f3][+wKa8] ? 2.Bd8-b6 # {as } 2...rGe3-a7[-b6][+wBe6] {impossible : wK controls)
} 1.Bf6-d4 ? b4-b3 ! 2.Kf3-g4 + rGh3-a3[-b3][+bPb6] {or} 2...rGh3-f5[-g4][+wKc4] {

} 1.Bf6-b2 ! {Blocus.
} 1...rGh3-e3[-f3][+wKa8] 2.Bb2-c1 # {
} 1...d6-d5 2.Kf3-g3 # {(} 2...rGh3-f3[-g3][+wKe3] 3.Ke3*f3 {)
} 1...b4-b3 2.Kf3-g4 # 2...rGh3-a3[-b3][+bPb6] {(or b1) impossible, a3 being controlled ;
as well as} 2...rGh3-f5[-g4][+wKe6] {self-check
} 1...b7-b6 2.Kf3-g2 # {(} 2...rGh3-f1 {impossible, wK no longer having a jumper}

7 - h#4 parrain circe triplets

Rice, J.
2020

white Sf1 Ke1 Pd2 black Pe2f3d3d5 Ke4

h#4 parrain circe(3+5)
b) Nf1-->c2
c) Nf1-->c6

: a captured unit remains in reserve "under" the capture square
then makes an equipollent move to the next one played

Solution

{

} {

} a) {
} 1.e2*f1=S Ke1-f2[+wSg2] 2.Ke4-d4 Kf2*f3 3.Sf1-e3[+bPe5] Sg2-f4 4.Se3-c4 Sf4-e6 # {

} b) wSf1-->c2 {Nf1-->c2
} 1.d3*c2 d2-d4[+wSc4] 2.Ke4*d4 Ke1-d2[+wPc5] 3.c2-c1=R Sc4-e5 4.Rc1*c5 Se5*f3[+wPd3] # {

} c) wSf1-->c6 {Nf1-->c6
} 1.f3-f2 + Ke1*f2 2.d5-d4[+bPf1=S] Kf2-g2 3.Sf1*d2[+bSd2] Sc6-e7[+wPf3] + 4.Ke4-e3 Se7-d5 #

8 - serial s#11 double grasshoppers

Heinonen, U.
2019

white Pb7a6c5d5g2 Kh1 Bb3 WGe3 black Ba7 Pb6c7h2d2d6g7 Kb8 Rh6 BGd8 Sb5

ser-s#11(8+11)
🨊e3, 🨐d8: Double Grasshoppers

: performs two successive grasshopper steps, provided that the finishing square of the first step is free.
and the final arrival square is free or occupied by an opposing unit

Solution

{

} 1.WGe3*a7 {(jumpers b3 and a6)} 2.Bb3-a4 3.WGa7-a3 {(a6 a4)
} 4.Ba4*b5 5.Bb5-d3 6.WGa3*b6 {(d3 c5)
} 7.Bd3-g6 8.WGb6*h6 {(d6 g6)} 9.Bg6-c2 {
} 10.Bc2-b3 {(return 1)} 11.WGh6-e3 + {(return 2; check with c5 and b7 jumpers
Note that a7 is controlled via b3 a6
Hence the only defence :} 11...BGd8-d4 # {
The Black DG attacks the White King via h8 and controls h2 via f2. White double Grasshopper and Bishop circuits.}

9 - 2# bolero

Gockel, H.
2021

white Bf8a2 Kd8 Pd7d2c4 Re6 Sc3 black Bc6 Pb7a4a3d3g4e4 Sa6 Kd4 Rg1

#2 bolero(8+10)

: Capture moves are played normally.
King and pawn moves are also normal.
A piece that does not capture adopts the walk of the piece initially in the same column..
It therefore plays like a Rook if it is on the ‘a’ column or the ‘h’ column, like a Knight if it is on “b” or ‘g’, etc.

Solution

{

Thematic try :
} 1.Re6-f5 ? {(the Re6 has played like a King, the threat is} 2.Bf8-g7 # {)
} 1...Bc6-b5 2.Sc3*b5 # {(} 2.Rf5-d5 ? {illegal, Rook moving as a Bishop when it does not capture)
} 1...Bc6-d5 2.Rf5*d5 # {(} 2.Sc3-b5 ? {illegal, Knight moving as a Bishop)
} 1...Sa6-a5 2.Bf8-c5 # {(and not} 2.Bf8-g7 + ? Sa5-e5 ! {)
but} 1...Bc6*d7 ! {parries the threat :} 2.Bf8-g7 + Sa6-f6 ! {

} 1.Sc3-a5 ! {(threatens} 2.Sa5-f5 # {)
} 1...Rg1-f3 {(for Rxf5)} 2.Ba2-a1 # {(no more Rg1xa1)
} 1...Bc6-b5 2.Re6-d5 # {(R played like a King)
} 1...Bc6-d5 2.Sa5-b5 # {(N played as a Rook)
} 1...b7-b5 2.Sa5*c6 #

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