py_20260331

1 - h#2.5 6 solutions take&make parrain circe with camel and gnu

Golha, J.
2025

neutral Rf5 GNh6 CAc6 black Ke6

h#2.5 T&M parrain circe(0+1+3)
6 solutions
🩃c6: neutral camel
🨙h6: neutral gnu
🨂f5: neutral Rook

: After a capture, the capturing unit pays tribute to the captured unit by making a move (without capturing) with its march.
: After a capture, the captured unit remains on the square where the capture took place and moves a distance equal to the next move made
: Bouncer (1,3)
: Camel + Knight

Solution

{

} 1...nRf5-d5 2.Ke6*d5-d1 nCAc6-f5[+nRg4] 3.nGNh6*g4-d4 nCAf5-c4[+nRd3] # {
} 1...nCAc6-d3 + 2.Ke6*f5-h5 nGNh6-g3[+nRe2] + 3.nGNg3*e2-e5 nCAd3-e6[+nRf5] # {
} 1...nCAc6*f5-d5 2.nGNh6-e5[+nRc4] nRc4-c6 + 3.Ke6*d5-e8 nRc6-e6[+nCAf5] # {
} 1...nCAc6*f5-e5 2.nGNh6-f5[+nRd4] nRd4-d6 + 3.Ke6*e5-f8 nRd6-f6[+nCAg5] # {
} 1...nCAc6-f7 2.Ke6*f7-c8 nGNh6-g3[+nCAe4] 3.nGNg3*f5-c5 nCAe4-b5[+nRc6] # {
} 1...nGNh6-g3 2.nCAc6*f5-d5 nGNg3-d4[+nRc6] + 3.Ke6*d5-a4 nRc6-c4[+nCAd3] # {

Sixfold echo.
The Black King is checkmated on every side.}

2 - serial double self-stalemate 17 moves madrasi

Chamberlain, B.
2021

white Pc6e7g7f5 Kc3 Bf1 black Pg6f2 Kc8 Qa4 Rh6

ser-s==17 Madrasi(6+5)

: Two opposing units of the same type that are observing each other are immobilised

Solution

{

} 1.e7-e8=S ! {(1. f6 ? (illegal))} 2.g7-g8=Q 3.Qg8*g6 4.f5-f6 {
} 5.f6-f7 6.f7-f8=R 7.Rf8-f6 8.Se8-c7 {
} 9.Sc7-a8 10.c6-c7 11.Rf6-b6 12.Qg6-e8 {(does not check the king but paralyzes the Qa4 and Rh6)
} 13.Kc3-b4 14.Kb4-a5 15.Ka5-a6 16.Ka6-a7 {
} 17.Bf1-a6 + f2-f1=B {double stalemate.
Neither ...Kd7 (unparalyzing wQ) nor ...Kb7 (Ka7xb7) are possible.

Double-colored AUW.}

3 - 2# tilt

Ott, M.
1984

black Bd8d1 Qc8 Rf1e1 Pe2d3c7 Sc5 Kg8 white Sd7d5 Pe7g7g6 Kf2 Bh8

#2 Tilt(7+10)

: A piece can only capture if it is in a standard check (the threatening move must not be a self-check).
The Rf1 does not put the White King in check because no one can capture it.
Similarly, 1 e8Q does not put the Black King in check.
The Black King is stalemated, because neither ...Kf8 (Pe7 & Nd7 are in check), nor ...Kf7, nor ...Kh7 (Pg6 is in check).

Solution

{

} 1.Sd5-f6 ! {(threatens} 2.Kf2-g1 # {
but not} 2.e7-e8=B + ? Kg8-f7! {neither} 2.e7-e8=R + ? Kg8*g7 ! {nor} 2.e7-e8=S + ? Kg8*h8 ! {).
} 1...Rf1-g1 2.e7-e8=B # {(because on} Kg8-f7 3.g6*f7 {).
} 1...Rf1-h1 2.e7-e8=R # {(because on} Kg8*g7 3.Bh8*g7 {).
} 1...Sc5-e6 2.e7-e8=S # {(because on} Kg8*h8 3.g7*h8 {) (} 2.Kf2-g1 + ? Se6-f4 ! {).
} 1...Sc5-e4 {illégal (self-check because it attacks Nf6).
} 1...Bd8*e7 {illégal (self-check).
} 1...Qc8-b7 2.Kf2-g1 # {because} 2...Qb7-f3 {does not prevent check.
} 1...Kg8*h8 {and} 1...Kg8*g7 {illegal (Pg7 and Bh8 engaged).}

4 - h#2 andernach Grasshopper

Rehm, HP.
2016

white Pe5 Kf8 white HurdleColourChanging WGb5 black Pc6 Bb6 Kc5 Rc4 Sf5e7 black HurdleColourChanging BGg6

h#2(3+7)
b) AGg6-->f6
🨟b5, 🨥g6: Andernach Grasshopper

: Every time an AG plays, the jump rope changes color, unless it's a King.

Solution

{

} a) {
} 1.hccBGg6-e4[f5=w] Sf5-e3 2.hccBGe4-b7[c6=w] hccWGb5-d3[c4=w] # {
Black AG had to retreat on the second move to avoid 3.AGa4 (bRc4).

} b) bhccGg6-->f6 {AGg6-->f6
} 1.hccBGf6-d8[e7=w] Se7-d5 2.hccBGd8-g8 hccWGb5-b7[b6=w] # {
Black's AG had to retreat on the second move to avoid 3.AGa5 (bBb6).}

5 - h#2 2 solutions couscous anti-circe

Tritten, P & Caillaud M
2017

white Bd8 Rf8b5 Kh7 Pb4b2c2 black Re8c3 Kf6 Se6 Ba5b3 Qc5 Pe3

h#2 couscous anti-circe 2sol.(7+8)

: The captured unit is reborn on the rebirth square of the captured unit.
Units threatening the Black King cannot reborn on e8

Solution

{

} 1.Qc5*f8[bQf8->a1] c2*b3[wPb3->c8=S] 2.Re8*d8[bRd8->c1] b4*a5[wPa5->f8=R] # {
Promotion to Queen} 2...b4*a5[wPa5->f8=Q] {would allow} 3.Se6*f8[bSf8->d1] {).
} 1...Re8*d8[bRd8->c1] {illegal for self-check.

} 1.Ba5*d8[bBd8->c1] b2*c3[wPc3->h8=S] 2.Re8*f8[bRf8->a1] b4*c5[wPc5->d8=B] # {
Promotion to Queen} 2...b4*c5[wPc5->d8=Q] {would allow} 3.Se6*d8[bSd8->d1] {).

} 1...Re8*f8[bRf8->a1] {illegal for self-check.}

6 - 2# make & take

Widlert, K & Maeder Th
2019

white Pc2h2d5h7 Bd3 black Ke4 Rh3e7 Bd7 Pg7g6h6f5b2

#2 Make&Take(5+9)

: The capturing unit first moves as the unit it wishes to capture,
then perform this capture while walking normally.
In the first phase, it is not allowed to capture.
A pawn is helpless on its first rank.

Solution

{

Tries :
} 1.c2-c3 + ? Bd7*d3 ! {
} 1.c2-c4 + ? Re7*d3 ! {
} 1.Bd3-c4 + ? Rh3-d3 ! {
} 1.Bd3-f1 + ? Ke4*f1 ! {
} 1.Bd3-e2 + ? Ke4*e2 ! {

} 1.h7-h8=S ! {(threatens} 2.Sh8-f7 # {
} 1...Bd7-e6 2.c2-c3 # {not} 2.Sh8-f7 + ? Ke4*f7 {via f6 because} 3.d5*f7 {impossible.
} 1...Re7-e6 2.c2-c4 # {
idem on} 1...Re7*h8 {ou} 1...Re7-e8 {
} 1...Rh3-h5 2.Bd3-c4 # {via d3 and} 2...Ke4*c4 {via d3 impossible because} 3.c2*c4 {via b3 or d3.
} 1...f5-f4 2.Bd3*f4 # {via d2} 2...Ke4*f4 {via f5} 3.h2*f4 {via g3
and not} 2.Sh8-f7 + {(check via f6)} Re7*f7 {via f5}

7 - s#2 sat with royal grasshopper

Turner, N.
2017

white Bd8b1 Rb5f2 Pe4f3 white Royal WGh5 black Sf8g1 Pb6b4h6h4h3g2e5 Rb3 Bb2 black Royal BGd5

s#2 SAT(7+12)
🨟h5, 🨥d5: royal Grasshopper

: A king is in check when it threatens to move to a square where it is not in check in the traditional sense.
It's checkmate if the king cannot avoid this “free” square.
: move as a but with royal attributes

Solution

{

} 1.Bd8-e7 ! {(threatens} 2.Be7-d6 + {which gives the escape square d7} 2...Sf8-d7 # {
It's checkmate to the white king with the escape to h7
(} 2...rBGd5-f5 {impossible because there would be an escape on f2).
By blocking c3, the defense allows 2 Bd6+, followed by 2...rGa5!.

} 1...Bb2-c3 2.Rf2-c2 + {(gives f3 to the black rG without there being ...Rxf3)} 2...Sg1*f3 # {:
} 2...rBGd5-f5 {impossible because there would be an escape on d3 ;
} 2...rBGd5-a5 {impossible because there would be an escape on c7 ;
} 2...rBGd5*f3 {impossible because there would be an escape on h1;
} 2...rBGd5-a2 {impossible because there would be an escape on c4.

} 1...Rb3-c3 2.Be7-c5 + {(give b5 to black rG)} 2...rGd5-f5 # {
(This is possible because f2 is now protected, so it's not a self check).
It's checkmate because the white rG has an escape to e5 (due to the interception of the bishop on b2),
that the White Rook cannot obstruct.
And} 3.rWGh5*e5 {is prohibited because there is an escape on b2.

Grimshaw Theme.}

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