py_20250107

1 - h#2 with winged Bishops

Bedoni, R.
1989

white wha8 Ph7 Kg1 black bhh5 Pb2 Ke1

h#2(3+3)
🨡a8 🨧h5: winged Bishops

: moves as a Queen before jumper and as a Bishop after

Solution

{

} 1.b2-b1=BH h7-h8=WH 2.BHb1-h4 {!! (via e1)

} 2...WHa8-c3 # {(via h8)

Winged Bishop h8 checkmates with the c3 jumper, check d1 & e2 with the h5 jumper.
Move} 3.BHh4*c3 {(via e1) does not counter mate,
no more than} 3.BHh4-d2 {(via e1).
And } 3.BHh5-g7 {(via h8} does not parry either, with WBh8 using the h4 jumper.
Placing the WBb1 on f2 also fails for another reason: 3...WBf2-g1-d4}

2 - serial h#3 with marguerite

Bedoni, R.
1989

white Pd7 Ka4 black MGc7 Pd2 Kd6

ser-h#3(2+3)
󼋫c7: Marguerite

: Winged Fers (bouncer 1-1) + winged Wazir (bouncer 0-1)

Solution

{

} 1.d2-d1=MG 2.MGd1-d5 {

} 3.Kd6-c6 d7-d8=WG # {

Marguerite d8 gives check and control b7, b6, d7 & d6 using the jumper c7,
it gives check and control c5 & d6 using jumper d5. Double check is required, or a jumper will run away.}

3 - h#2 with winged camel

Bedoni, R.
1989

white Ph7 Kb7 black BCd4 Pe5e2 Ke8

h#2(2+4)
🨽d4: winged Camel

: plays like a Queen until the jumper, then like a camel (1,3) after

Solution

{

} 1.e2-e1=R h7-h8=WC {

} 2.Re1-e4 {

} 2...WCh8-d5 # ! {

This winged Camel mate via b7, controls d8 & f8 via e5, d7 & f7 via e4 and e7 via d4.}

4 - h#2 3 solutions super-circe empress

Soulivy, K.
2018

neutral EMb8 CAc6 white LIe2 black Kd4

h#2 3sol.(2+4)
🨙b8: neutral Empress
🩃c6: neutral Camel
🨴e2: Lion

: a captured unit is replaced on the board at the taker's discretion
: Knight + Rook
: Bouncer (1,3)
: Long hopper who needs a jumper to move

Solution

{

} 1.Kd4-e3 nEMb8*c6[+nCAc2] 2.Ke3*e2[+wLIh5] nEMc6*c2[+nCAg4] # {
It's mate with double check (Empn + Li),
Neutral empress control d2, e2, f2, e1 & e3 ;
Neutral Camel d3 & f1, Lion d1, e2 & f3.

} 1.Kd4-e5 LIe2-e6 2.Ke5*e6[+wLIh3] nEMb8*c6[+nCAg4] # {

} 1.Kd4-c4 LIe2-a6 2.nEMb8*a6[+wLIf1] nEMa6*c6[+nCAe2] # {

Triple echo of mirror mate.}

5 - 6# with rose

Ott, M & Maeder Th
1992

white Pg3c7 Sd5 Kh5 Qd3 ROf2 black Rc5 Qb6 Sc8 Pa5 Ka4 Bb2

#6(6+6)
󼎜f2: Rose

: extended rounded Knight
Rose f2 pins black Queen, Rook and Bishop. The problem theme is to give back move to Black.

Solution

{

Tries :
} 1.Kh5-g5 ? Qb6-f6 + ! {
} 1.Kh5-g4 ? Qb6-e6 + ! {

} 1.ROf2-d7 ! {(maintaining the three pins)
and here, on} 1...Sc8-e7 ? {we have } 2.ROd7*b6 # {
} 1...Bb2-f6 {(playing on the pinning lines)
if we start the triangulation with} 2.Kh5-g6 ? {Black replies} 2...Sc8-e7 + ! {
and on } 2.g3-g4 {, Bishop is unpinned and} 2.Bf6-g7 {becomes possible
} 2.Kh5-h6 ! 2...Bf6-b2 + 3.Kh6-g5 3...Bb2-f6 + 4.Kg5-h5 {(end of triangulation)
} 4...Bf6-b2 5.ROd7-f2 {(back to diagram with changed move)
} 5...Qb6-f6 6.ROf2*c5 # {
} 5...Sc8-e7 {(or elsewhere)} 6.ROf2*b6 #

6 - h#2 2 solutions patrol with neutral pieces including a King (!!)

Foster, G.
2018

neutral Kh1 Sc2 white Ra3

h#2 patrol(1+0+2)
2 solutions
🨀h1: neutral King
🨄c2: neutral Knight

: a unit can only capture if it is ‘observed’ by a unit of its own side

Solution

{

} 1.nSc2-e3 Ra3-a1 2.nSe3-g4 Ra1-g1 # {
The white part of the neutral king supports the white rook, which then attacks the black part of the same neutral king (!)
while supporting the neutral knight and thus preventing the neutral king from escaping to h2.
If it is not supported by a black unit, it cannot take the Rook..
} 1.nSc2-d4 Ra3-h3 2.nSd4-e2 Rh3-h2 # {

Symmetrical echo.}

7 - serial h#11 2 variations with Moose

Feather, Ch
2008

black mg8d1 Kh8 white Bb8 Kh6 Ph3

ser-h#11(3+3)
🨺d1,g8: Elan

: Moves on the Queen's lines before the hurdle,
then deviates by 45° and lands just after it

Solution

{

set play :} 1...Bb8-e5 # {

} 1.Mg8-a7 {(only legal move)} 2.Ma7-c8 3.Mc8-h2 4.Mh2-g4 5.Md1-h4 {
} 6.Mh4-f5 7.Mg4-f6 8.Mf5-e7 9.Mf6-d7 10.Md7-f8 {
} 11.Me7-g8 Bb8-e5 # {
it was the only way to get Moose back to g8

} 1.Mg8-a7 2.Kh8-g8 3.Kg8-f7 4.Kf7-e6 5.Ke6-d5 {
} 6.Kd5-c4 7.Kc4-b3 8.Kb3-a2 9.Ma7-b1 10.Ka2-a1 {
} 11.Md1-a2 Bb8-e5 # {

Distant echo.}

8 - h#2 2 solutions masand b) wKa3

Nefedov, V.
2018

white Kd7 black Pb5c4f7 Sf2 Bg2 Qg1h2 Kh1

h#2 Masand 2sol.(1+8)
b) Kd7-->a3

: When a unit gives a direct check, all the units it observes change colour (Kings excepted).

Solution

{

} a) {
} 1.Sf2-g4 Kd7-d8 2.Qg1-d1[g4=w] + Sg4-f2[d1=w] # {
} 1.Bg2-f1 Kd7-c8 2.Qh2-h3[f1=w] + Bf1-g2[h3=w] # {

} b) wKd7-->a3 {Kd7-->a3
} 1.Qh2-e5 Ka3-a2 2.Qg1-a1[e5=w] + Qe5-h8[a1=w] # {
} 1.Qh2-f4 Ka3-b2 2.Qg1-c1[c4=w][f4=w] + Qf4-h6[c1=w] # {
}

9 - h#2 3 solutions partial paralysis

Caillaud, M.
2017

white Se3 Rd1 Kc4 Bg3 black Pe2 Ke6 Rd8b6 Sg6b4

h#2 partial paralysis(4+6)
3 solutions

: a unit "observed" by an opposing unit may not play as it does

Solution

{

} 1.e2-e1=Q {(Paralyse wR & wB.)} Se3-g2 2.Ke6-d6 Sg2*e1 # {
by a double check, bK can't play either as a Bishop or as a Rook.

} 1.e2-e1=R Se3-c2 2.Ke6-d5 {(leads to paralysis of the 2 Kings)} Bg3*e1 # {(by R, bN being paralysed)

} 1.e2-e1=B {(paralysing wB)} Se3-d5 {(unparalysing wR)} 2.Ke6-e5 Rd1*e1 # {

3 mates on the same square given by different units.}

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