py_20210316

1 - h#2 circe with twin b) ♔h4 --> g4

Trillon, JM.
1976

white Kh4 Rh6h2 black Pf7d7 Ke8 Ra8

h#2 circé(3+4)
b) ♔h4 --> g4

A captured piece returns to its original square if it is free, otherwise it disappears

Solution

{

} a) {0-0-0 illegal. As the last white move arrived on a black square, the last black move was necessarily a king or rook move
} 1.f7-f5 Rh6-f6 2.Ra8-d8 Rh2-e2 # {

} b) wKh4-->g4 {Kh4 --> g4
0-0-0 is legal, the last move could have been KxRg4(bRa8)
} 1.0-0-0 Rh6-b6 2.f7-f6 {(tempo)} Rh2-c2 # {

Echo checkmates.}

2 - 2# anti-circé with lions

Loustau, JM.
2008

white Qc5 Pe7e3d3c3c4 Ke4 Be8d6 Se6 black BLa7d2 RLd8f4 Kf6 Pd4e5f5b4

#2 Anti-Circe(10+9)
🨼a7, d2: Bishop-Lion
🨻d8, f4: Rook-Lion

A capturing piece is reborn on its original square and the captured piece disappears
. When the rebirth square is occupied the capture is illegal unless the capture and rebirth squares are the same
. in which case a distinction is made between the Calvet type (take allowed) and Cheylan type (forbidden)
kind of Grasshopper that can go further beyond the sautoir.
There must be a clear path from the sautoir to the finishing square
. The Lion-Rook and the Lion-Bishop move, of course, on Rook and Bishop lines respectively

Solution

{

Essais :
} 1.Ke4*e5[wKe5->e1] ? {(threatens} 2.Qc5-e5 # {but not} 2.Bd6-e5 {because of} RLf4*c4[bRLc4->c1] {)
} 1...d4*c3[bPc3->c7] 2.Bd6-e5 # {(now that there is no the defence RLxc4)
but} 1...RLd8-d5 ! {prevents De5
} 1.Qc5*e5[wQe5->d1] ? {(threatens} 2.Bd6-e5 # {but not} 2.Ke4-e5 {because} BLa7*e3[bBLe3->e1] {)
} 1...d4*c3[bPc3->c7] 2.Ke4-e5 # {(now that there is no the defence BLxe3)
mais} 1...BLa7*e3[bBLe3->e1] ! {prevents} 2.Bd6-e5 # {because of } BLe1*c3[bBLc3->c1] !! {(wonderful !

} 1.Bd6*e5[wBe5->c1] ! {(threatens} 2.Ke4-e5 # {but not} 2.Qc5-e5 {because of} RLd8*d3[bRLd3->d1] {)
} 1...d4*c3[bPc3->c7] 2.Qc5-e5 # {(now that there is no the defence RLxd3)
but not} 2.Ke4-e5 BLa7*e3[bBLe3->e1] ! {

Cycle ABC-BCA-CAB.}

3 - serial selfmate 6# 2 sol circe

Rittirsch, M.
2014

white Qh5 Kf7 Re2 Sc7 black Bh7e5 Kf4 Qc2 Pg6 Sc8g3 Rd8

ser-s#6 circe(4+8)
2 solutions

White plays a series of n moves after which Black is forced to checkmate in 1 move

Solution

{

} 1.Qh5-h3 2.Qh3*c8[+bSg8] 3.Qc8-h3 4.Qh3*h7[+bBc8] 5.Qh7-h5 6.Sc7-e6 + Bc8*e6[+wSb1] # {
Of course 7 Kxe6 is impossible because of a rebirth in c8.} 7.Kf7*e6[+bBc8] {

} 1.Re2-d2 2.Rd2*d8[+bRh8] 3.Rd8-d2 4.Rd2*c2[+bQd8] 5.Rc2-e2 6.Sc7-d5 + Qd8*d5[+wSb1] # {

A kind of AUW through the 4 black rebirths.}

4 - s#10 with rose

Widlert, K.
1994

white Kc8 Qe5 Pd7h6g5 Sa8e7 Rh8 ROa5 black Ph7 Sd8 Kf7

s#10(9+3)
󼎜a5: Rose

Rounded extended knight

Solution

{

} 1.ROa5-f3 ! {Pin the black knight on d2-b3-a5-b7-d8-f7.} Sd8-b7 2.ROf3-h2+ {via f1-d2-c4-d6-f7.} Sb7-d6+ {
} 3.Kc8-d8 Sd6-c4 4.Qe5-d6+ {via f3-e5-f7} Sc4-e5 5.Sa8-c7 Se5-f3 6.ROh2-c4 + Sf3-e5 {
} 7.ROc4-a5 {return (switchbaaaack)} Se5-c4 8.Qd6-g6 + h7*g6 {
} 9.ROa5-b7+ Sc4-d6 10.Se7-c8 Sd6*b7 # {

Pelle movements (on pinning lines) on 5 different lines.}

5 - h#2 3 sol transmuted Kings

Kekely, L.
2020

white Pd7d3 Kf7 black Ph5f4c4f2 Kh4

h#2 transmuted Kings(3+5)
3 solutions

When a King is in check, it adopts the moving way of the attacking piece

Solution

{

} 1.Kh4-g5 d7-d8=Q + 2.Kg5-c5 d3-d4 # { : King move as a Pawn

} 1.Kh4-g4 d7-d8=R 2.h5-h4 Rd8-g8 # { : King move as a Rook

} 1.f2-f1=S Kf7-e8 2.Sf1-g3 d7-d8=B # { : King move as a Bishop

Mixed AUW.}

6 - h#2 make & take

Pachl, F.
2019

white Kd2 Gd1e3 black Kd5 Pd7d6 Bc5h5 Rb4e6 Sc6h4

h#2 Make&Take(3+9)
b) ♔d2 --> g3
🨟d1,e3: Grasshopper

make & Take the capturing unit first moves as the unit it wishes to capture then makes that capture by moving normally. In the first phase, it is not allowed to capture. A d2 pawn is very powerful, giving check to a king at b3, b4, c4, d3, d4, e4, f4 or f3.
But on the other hand it does not check if the King is in c3 or e3!

Solution

{

} a){
} 1.Bh5-f7 Ge3*e6 {via b3 for the pre-thume (or anthume) tribute to Re6
} 2.Sh4-g6 {(gives a sautoir to Gd1)} Gd1*f7 # {via h5
La Sf7 control e5 (via e7 ou e8) and she checks (via g8).
The black king cannot capture e6, having to perform a no-take Grasshopper step beforehand.
The white king controls c4, d4 and e4.

} b) wKd2-->g3 {Rd2 --> g3
} 1.Rb4-b5 Ge3*c5 {via g5 for the prethumous (or anthumous) tribute to Bc5
} 2.Sc6-b4 {(gives a sautoir to Gd1)} Gd1*b5 # {via b1
the white king controls e4, e5 ;
Gb5 checks (via a5), controls d4 (via b6), c4 (via c6) and c6 (via c4) ;
and 3.Kxc5 is forbidden, as the bK must first make a Grasshopper step without a capture

. Echo diagonal-orthogonal.}

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