py_20231031

white Bc1f1 Ke1 Qd1 Pa2b2c2d2e2f2g2h2 Sb1g1 Ra1h1 black Bc8f8 Ke8 Qd8 Pa7b7c7d7e7f7g7h7 Sb8g8 Ra8h8

{

} 1.d2-d4 {(has played as pe7)} Sb8-c6 {(Ng1)} 2.Qd1-d2 {(Ke8)} Sc6-e5 {(f3 empty)} {
} 3.d4-b3 {(Ne5)} Sg8-h6 {(Nb1)} 4.Qd2-d4 {(pe7)} Se5-f4 {(Qd4)} 5.Qd4-d1 {(e5 empty)} Sf4-g6 {(c5 empty)} 6.b3-d2 {(Ng6).

} 1.Sb1-a3 {(Ng8)} Sb8-c6 {(Ng1)} 2.Ra1-b1 {(Rh8)} Sc6-e5 {(f3 empty)} 3.Rb1-c3 {(Ng8)
} Sg8-f6 {(b1 empty)} 4.Sa3-b1 {(h6 empy)} Sf6-h6 {(Rc3)} 5.Rc3-b3 {(f6 empty)} Se5-g6 {(d4 empty 6.Rb3-a1 {(Ng6)}

2 - 2# with pegasus

Monréal, P & Joffart D
1969

white Pb6d5e7f6g7f4 Re6 Bf7 Sg5 Kg3 Nb5 black Bh5 Rh8d8 Pc7c6d3g6 Sb3e5 Kf5

#2(11+10)
🨷b5: Pegasus

Grasshopper + Nightrider

Solution

{

} 1.Sg5-e4 ! {(threatens } 2.Re6*e5 # {)

} 1...Kf5*e4 2.Re6*e5 # {(the "winged horse" controlling d4.)
} 1...Se5-d7 2.Nb5-b7 # {: no ...Rd6 to intercept
} 1...Se5*f7 2.Nb5*f7 # {
} 1...Se5-g4 2.Nb5-f3 # {(but not} 2.Nb5-d1 + ? Ng4-e3 ! {
} 1...Se5-f3 2.Nb5-d1 # {
} 1...Se5-c4 2.Nb5*d3 # {
} 1...Rd8*d5 2.Re6*e5 # {car} Rd5*e5 {illegal : a case where the Grasshopper is "stronger" than a Queen !}

3 - aidé 1,5# 4 variations bicolore chess

Joffart, D & Oudot J
1971

white Pg3g2 Kc4 Qb2 Rd3 Se4 Bd6 black Bc8 Pc5c6f2 Sg1 Kh1

h#1.5 bicolore chess(7+6)
4 variations

A King can be checked by pieces from his own camp

Solution

{

} 1...g3-g4 {

} 2.f2-f1=Q Qb2-h8 # {

} 2.f2-f1=R Rd3-h3 # {

} 2.f2-f1=B Se4-f2 # {

} 2.f2-f1=S Se4-g3 # {

AUW}

4 - 2# with bulgarian lion

Petkov, P.
2020

white Qa8 LId5 Bc5 Pa7g6 Sg2 Kg1 black Pf6c4c3g3 Ke4

#2(7+5)
🨴d5: bulgarian Lion

bulgarian lion can only play if the "sautoir" can make an imitative (Lion's) move without a capture.
The jumper decides on the imitative move made by the "sautoir".

Solution

{

Try : } 1.LId5-b5[-c5][+wBa5] + ? Ke4-d4 ! {
and not} 1...Ke4-e5 ? 2.LIb5-g5[-e5][+bKh8] # {, ni} 1...Ke4-f5 ? 2.LIb5-g5[-f5][+bKf8] # {

} 1.Qa8-c6 ! {
} 1...Ke4-d3 2.LId5-d2[-d3][+bKa6] # {
} 1...Ke4-f5 2.LId5-g5[-f5][+bKf8] # {
} 1...Ke4-e5 2.LId5-f5[-e5][+bKa5] # {
} 1...Ke4-f3 2.LId5-b5[-c5][+wBc8] # {(gardant g4)
} 1...c3-c2 2.LId5-f3[-e4][+bKa8] # {

5 shots from the Queen-bulgarian Lion battery.}

5 - h#2 2 solutions take & make with zebra and camel

Tritten, P.
2015

white Ka3 Bc5 Rd3 black Za4 CAb2 Pa2 Kc4 Sd5

h#2 2sol.(3+5)
a4: Zebra
b2: Camel

any unit performing a capture must pay tribute to the captured piece by performing a movement (without capturing) with the captured piece's march.
bouncer (3,2)
bouncer (3,1)

Solution

{

} 1.Sd5-b4 Ka3*b2-a5 2.Kc4*d3-a3 Ka5*b4-c2 # {

} 1.Sd5-c3 Ka3*a4-d2 2.Kc4*c5-a3 Kd2*c3-b5 # {

Mate on the initial square of the white king.}

6 - 4# 2 solutions make & take

Kerhuel, M.
2020

neutral pa7 white Ba2 Pa6g3g2 Kh1 black Kb3

#4 make&take 2sol.(5+1+1)

make&take a unit wishing to capture first moves like the unit it wishes to capture,
then performs this capture while moving normally.
The black king is not in check because the bishop would have to play a king move before... capture the said King.
On the other hand, all the squares in the royal field (including a2) are forbidden to him.

Solution

{

} 1.a7-a8=nQ + ! nQa8-d8 {(only legal move)} 2.Ba2-b1 + {
(} 2...Kb3-b4 ? {is illegal :} 3.nQd8*b4 {via e7 ; } 2...Kb3-b2 ? {is illegal :} 3.Bb1*b2 {via c1 or a1;)
} 2...Kb3*b1 {via a2 or c2 (on 2...Ka2, we play the same)} 3.g3*d8=wQ {via c7
} 3...Kb1-b2 {(or Ra1 or Ra2)} 4.Qd8-b6 # {
The Queen is taboo : } 4...Kb2*b6 ? {via b5} 5.a6*b6 {via a5

} 1.a7-a8=nB ! nBa8-b7 ! {(Fnf3? : text)
(here, not} 2.Kh1-h2 ? nBb7*g3 + ! {via b8)
} 2.g3-g4 {(} 2...nBb7-a8 ? 3.g2*a8=Q # {via b7, as} 3...Kb3*a8 ? {via b7 impossible, the Pa6 capturing the King via b7 ;
idem } 2...nBb7-c8 ? {; and} 2...nBb7*g2} is illegal, the bB not having played a pawn move)
} 2...nBb7-f3 3.Ba2-b1 + Kb3-b4 {(or Ra2)} 4.Bb1-c2 # {
(but neither} 4.Bb1-a2+ Kb4-a5 ! {nor} 4.Bb1-d3 + ? Kb4-a3 ! {).
This Bishop is taboo :} 4.Bb1-c2 Kb4*c2 ? {via c3} 5.nBf3*c2 {via e4.
And the bK has nowhere to go, for example} 4...Kb4-c5 5.nBf3*c5 {via e3 or f2 or} 4...Kb4-b3 5.Bc2*b3 {via d1.}

7 - h#7 anti-andernach functionaries

Degener, U.
2019

white Kd4 black Ba1d5 Sb4e4 Kh8

h#7(1+5)
anti-andernach functionaries
b) Kh8-->h1
c) Kh8-->d6

A piece that plays without capturing changes color (except for kings).
A piece can only move, and even less capture, if it is observed by an opposing unit.

Solution

{

} a) {
} 1.Se4-f6=wS Kd4-c3 2.Sb4-c6=wS Sc6-e5=bS 3.Bd5-g8=wB Kc3-d4 4.Se5-g6=wS Kd4-e5 {
} 5.Kh8-g7 Sg6-f4=bS 6.Sf4-e6=wS Ke5-d6 7.Kg7-f8 Bg8-f7=bB # {

} b) bKh8-->h1 {Kh8-->h1
} 1.Bd5-a2=wB Ba2-c4=bB 2.Se4-g3=wS Kd4-c3 3.Sb4-d3=wS Sd3-e1=bS 4.Bc4-f1=wB Kc3-d3 {
} 5.Kh1-h2 Kd3-e2 6.Se1-f3=wS Sg3-h1=bS 7.Kh2-g1 Bf1-g2=bB # {

} c) bKh8-->d6 {Kh8-->d6
} 1.Bd5-c6=wB Kd4-d3 2.Se4-c5=wS Kd3-c4 3.Sb4-c2=wS Bc6-e4=bB 4.Ba1-g7=wB Sc2-a3=bS {
} 5.Be4-b7=wB Kc4-b4 6.Sa3-c4=wS Sc5-e6=bS 7.Kd6-d5 Sc4-d6=bS # {

The first 2 mates are a bit similar, but the 3rd is even better..}

8 - 2# annan

Gockel, H.
2016

white Kc2 Rd3g6 Pg3f4e5d6 Bf7 Sh6 black Pc6 Sh7 Ke4

#2 annan(9+3)

a unit acquires the march of the friendly unit "below" it (to the south)

Solution

{

Essais :
} 1.Rg6-g5 ? 1...Sh7-f6 ! {
(} 1...Sh7-f8 2.Sh6-g4 # {: Rg5 has become Knight, the Knight has become pawn}
} 1...Sh7*g5 ? 2.Bf7-g6 # {;} 1...c6-c5 2.Bf7-d5 # {)
} 1.Sh6-g4 ? {
(} 1...Ke4-f5 {is illegal because Ng4 now has the Pg3 march; } 1...Sh7-f8 2.Rg6-g5 # {)
} 1...Sh7-f6 ! 2.Rg6-g5 + {(the Rook plays like a Knight)} Sf6*g4 ! {(Rg5 has become a Rook again)
} 1.Kc2-d2 + ? 1...Ke4-f3 ! {because the Rd3 moves as King

} 1.Rg6-f6 ! {
} 1...Sh7-f8 {or} 1...Sh7-g5 2.Sh6-f5 # {the Rook now has the Knight's walk, but nevertheless becomes a Rook again on 2...Kxf5
} 1...c6-c5 2.Bf7-b7 # {
} 1...Sh7*f6 2.Bf7-g6 # {Bishop is a real Bishop again !} {
}

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