py_20201124

On the other hand, by clicking on one of the terms in the title, an echekk or Phenix window opens with the definition

1 - serial direct #4 adhésifs

Bedoni, R.
2005

white Pb7c7 Kd7 black Sc8a5 Ba7 Ka6

ser-d#4 adhesive chess(3+4)

adhesive In Adhesive Chess, enemy pieces of the same kind that touch (but do not attack) each other become paralysed,
retaining only the power to paralyse, as in madrasi.
This concerns rooks located at a diagonal step, bishops of different colours, knights and pawns.

Solution

{

} 1.b7*c8=S 2.Sc8-b6 {Paralyse Na5.
} 3.Kd7-c6 4.c7-c8=Q # {
and no} 4.c7-c8=B + ? Ba7-b8!

2 - maximum =6 Incapacitating

Bedoni, R.
2005

white Pa7d7e7f6b4 Kd5 Sa5 black Qb2 Kh1 Rb8c1 Sa8c7 Bc3

=6 maximum Incapacitating(7+7)

Incapacitating enemy pieces of the same nature separated by a single square (without attacking each other) paralyse,
retaining only the power to paralyse, as in madrasi. This intermediate square may be occupied.
Thus, bNc7 does not check the white king, because paralysed by wNa5.

Solution

{

} 1.f6-f7 Bc3-h8 2.f7-f8=B {
Bh8, paralysed, cannot return to c3.
} Qb2-g7 3.e7-e8=Q {
It is now bQ that is paralysed.
} Rc1-c6 4.a7*b8=R {
then bR.
} Sa8-b6 + 5.d7-d8=S {
paralyse Nb6
} Kh1-g2 {
longer move
} 6.Kd5-e4 {stalemate: the black king is in turn paralysed.
AUW.}

3 - h#2 with twins : b) circe c) madrasi d) Both

Heinonen, U.
1991

white Pf7e2e4d5a3 Kg8 Bd3 black Bh6 Kd4 Qa4 Pd6e6f5d2 Sf2b3 Rd7

h#2(7+10)
b)Circe
c)Madrasi
d)Circe Madrasi

a captured piece is reborn on its original square if it is free
. 2 opposing pieces of the same kind that observe each other are paralyzed

Solution

{

} a) {#2 normal
} 1.Kd4-c5 f7-f8=S 2.Qa4-d4 Sf8*d7 # {This would be impossible in circe, with the bR reborn on a8. And in madrasi would occur 3...Kc6! or Kxd5!

} b) {circe
} 1.Kd4-c3 f7-f8=B 2.Bh6*f8[+wBc1] Bc1-b2 # {

} c) {madrasi
} 1.Kd4-e3 f7-f8=Q 2.Sb3-d4 Qf8*h6 # {Pf5 being paralyzed; in circe madrasi, there would be 3...Bxh6

} d) {circe madrasi
} 1.Kd4-e5 f7-f8=R 2.Qa4-d4 Rf8*f5[+bPf7] # {the rebirth of the pawn preventing 3...Rf7

. AUW and black king's star.}

4 - 2# sentinels

Caillaud, M.
1993

white Pg3g4g5f5e6d5d3b6 Kc3 Rc4d8 Bd7 black Pe7 Ke5

#2 sentinels(12+2)

each piece move (not a pawn) defecates a pawn on the starting square of the move
. (within the limit of 8 when nothing is specified)

Solution

{

Tries :
} 1.Kc3-c2 ? zugzwang. 1...Ke5-d6[+bPe5] ? 2.Bd7-c6 # but 1...Ke5*d5[+bPe5] ! {(} 2.Bd7-c6[+wPd7] + Kd5-d6[+bPd5] {)
} 1.b6-b7 ? zugzwang. 1...Ke5*d5[+bPe5] ? 2.Rc4-c6[+wPc4] # but 1...Ke5-d6[+bPe5] ! {(} 2.Bd7-c6 + Kd6-c7 {)

Real Play :
} 1.d5-d6 ! {
} 1...Ke5-d5[+bPe5] 2.Bd7-c6 # {(no pawn defecation on d7 which would have allowed Kxd6)
} 1...Ke5*d6[+bPe5] 2.Rc4-c6[+wPc4] # {
} 1...e7*d6 2.Rc4-e4[+wPc4] # {

Mats exchanged AB-BA between the Real Play and the 2 tries.}

5 - h#2 4 sol transmuted Kings

Caillaud, M.
1994

white Kh7 Pb7c7b2a3h3 Rb8d5 Ba8 Sh5 black Pa6e3d2h4 Sc8 Ra7 Ke4

h#2 transmuted Kings 4sol.(10+7)

the King takes the moving way of the piece that checks him

Solution

{

} 1.d2-d1=Q b7*c8=Q 2.Qd1-b1 {(Qc2 would cover)} Rb8-b4 # {
(} 3.Ke4-e7 + {(would be illegal, as Kh7 now has the Queen's march)

} 1.d2-d1=R b7*c8=R 2.Rd1-d4 Rc8-e8 # {(a Q in d4 would cover in e5)

} 1.d2-d1=B b7*c8=B 2.Bd1-f3 Bc8-f5 # {

} 1.d2-d1=S b7*c8=S 2.Sd1-f2 {(self-blocking)} Sc8-d6 # {

Babson theme (for the uninitiated: correspondence of promotions)}

6 - h#2 3 sol anti-Kings circé

Parrinello, M.
2019

white Qc8 Pb6h7c5d6 Ke2 Rh8 black Qe1 Pa7a6b5d7e7g6 Ka8 Bd3 Sd4

h#2 Anti-Kings circe 3sol.(7+10)

each King must always be in check, otherwise it is mate.

Solution

{

} 1.Qe1-h1 Qc8-b7 2.Qh1*b7[+wQd1] Qd1*d3[+bBc8] #{

} 1.Bd3-e4 Qc8-c6 2.Be4*c6[+wQd1] Qd1*d4[+bSb8] #{

} 1.Sd4-e6 Qc8-c7 2.Se6*c7[+wQd1] Qd1*e1[+bQd8] #{

Captures cycle DF-FC-CD.}

7 - h#2 2 solutions take & make anti take & make

Huber, E.
2013

white Bd7 Rb4 black Sd5e7 Kg5

h#2 2sol.(2+3)
Take&make
Anti-T&M

After a capture piece, the capturing piece pays homage to the captured piece by making a move (without a take) with that piece's march
anti Take&make In "anti take and make", the captured piece also makes a move (without capture) in accordance with its nature, in homage to...
itself!

Solution

{

} 1.Sd5*b4-b5[+wRf4] Bd7*b5-c3[+bSd6] 2.Kg5*f4-f8[+wRd4] Rd4*d6-e8[+bSf7] # {

} 1.Sd5*b4-b7[+wRe4] Re4*e7-g6[+bSc8] 2.Kg5*g6-a6[+wRg8] Rg8*c8-a7[+bSb6] # {

Each time it is well mate, because if the king captures the rook, he will have to make a rook move and the rook will have to make a self-tribute by playing a move from its capture square and each time, the corridor being narrow, it does not allow the rook to be deposited anywhere else than on a self-checking square of the black king

Example in the second mate :
} 3.Ka6*a7-a1[+wRa8] Ra8*a1

8 - serial s=7 bicolores

Tylor, Ch
2020

white Pa7b7c7d7e7e5d4b4 Kc6 black Pa4 Ke6 Rc8 Se8 Bd8

ser-=7 bicolores(9+5)

a King is also in check by the units of his own side.

Solution

{

} 1.a7-a8=Q 2.Qa8-a7 ! {(the promotion 2. bxc8=Q is illegal, as Qa8 checks its own King
} 3.b7*c8=Q 4.Qc8-b8 ! {display-departure-file} {(to allow next move)
} 5.c7*d8=Q 6.Qd8-a5 ! {display-departure-file} 7.d7-d8=Q {
White is stalemate: all the moves at his disposal are self-checks.}

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