a little historical recap made by Maître Jacques :
Charybdis was a whirlwind and Scylla a mastoc rock. When sailors avoided Charybdis, they would wallow on Scylla, hence the expression.
For the non-specialist :
h#2 : helpmate 2 moves. Black plays and helps white to checkmate them.
Moa : Crawling Knight who first performs a Bishop step, then a Rook step.
If the Bishop's step cannot be carried out because of the presence of an element on the square then the movement is impossible.
Charybdis : Moa who eats the opponent's piece on the bishop's step.
Mao : Crawling Knight that starts with a Rook step with the same restriction as the Moa
Scylla : Mao eating the hurdle on the Rook's step.
A funny problem for the next one by the same author :
2 - h#4
white Pg2 Sa6 Kd5
black Ba1a2 Ke8 Qa7 Pe7d7b6c5b4c4d3 Sb8g5 Ra8e1
h#4(3+15)b) find the theme of the problem
{
}
a) {
}
1.Ba1-e5 Sa6*b8 {
} 2.Qa7-a3 Sb8*d7 {
} 3.0-0-0 Kd5-c6 {
} 4.Be5-b8 Sd7*b6 #{
}
b) {last moves and theme}
1.Kd5-e5[+bSd5] d3-e4[+wPd4] 2.d4-d2 Sd5-c3 {etc ...
the theme is 'Valladao' (castle, prise en passant and promotion; promotion for the 3rd Black Knight that the retro makes appear)}
Again by the same, a passage through the Chameleons :
3 - h#2 3 solutions with Chameleon pieces
white Pc3 Kd6
white Chameleon Qf1 Sg3
black Pb2e6 Ke3
h#2(4+3)3 solutionsf1: Chameleon Queeng3: Chameleon Knight
{}
1.b2-b1=cQ cSg3-h5=cB 2.cQb1-d3=cS cBh5-e2=cR #{}
1.b2-b1=cS cSg3-f5=cB 2.cSb1-d2=cB cBf5*e6=cR #{}
1.b2-b1=cB cSg3-e2=cB 2.cBb1-e4=cR cBe2-d3=cR #
Le
Chameleon changes its nature according to the Q,N,B,R cycle after each move played.
Another beautiful composition by Feather, definitely very productive (a kind of English Sobrecases!), this time with the Equihoppers.
4 - h#2,5 2 solutions with Equihopper
white Pb5 Kg8 Bb8 NEa2f5h3
black Bh8 Kb7 NEf6h4 Qa8 Pa7 Rf3
h#2,5(6+7)2 solutionsa2, f5, h3, f6, h4: Nonstop Equihopper
{}
1...Kg8-h7 2.Rf3*f5 Bb8-d6 3.NEf6-b6 Bd6-e5 #{}
1...Kg8-f7 2.Rf3*h3 Bb8-e5 3.NEh4-b6 Be5-d6 #
Equihopper is a piece that needs a support point to move.
She falls back on the other side of the sautoir after an equipollent movement. The arrival square must be free or occupied by an opponent's piece.
.
A last one of the same for the road
5 - h#9 Chameleon Circe with Chameleon Queen and Locuste
white La7
black Pe6 Ke5
black Chameleon Qf8
h#9 chameleon Circe(1+3)a7: Locustef8: Chameleon Queen
{}
1.cQf8-f2=cS La7*f2-g1[+bcBf8] {}
2.cBf8-c5=cR Lg1*c5-b6[+bcQd8] {}
3.cQd8-g5=cS Lb6*e6-f6[+bPe7] + {}
4.e7*f6[+wLf8] Lf8*f6-f5[+bPf7] + {}
5.Ke5-f6 Lf5*g5-h5[+bcBf8] {}
6.Kf6-g7 Lh5*f7-e8[+bPf7] {}
7.Kg7-h6 Le8*f7-g6[+bPf7] {}
8.f7*g6[+wLg8] Lg8*f8-e8[+bcRh8] {}
9.cRh8-f8=cQ Le8*g6-h5[+bPg7] #
Chameleon Circe : a captured piece, before being reborn, undergoes a Chameleon transformation and is then reborn on its original square.
Locuste : A piece that moves on the Queen's lines but needs a hurdle to move behind it. Being endowed with a strong appetite, it eats itself while swallowing the hurdle, which must, of course, be an opponent's piece.
To follow, a passage through the Take&Make
6 - h#2 Take&Make
white Pc3e3 Kd4 Bb2
black Pg7 Kh8 Bb4f4
h#2 Take&Make(1+3)
{}
1.Bb4*c3-c4 e3*f4-h6 {} 2.g7*h6-h7 Kd4*c4-f7 #
Take&Make : when a piece takes an opponent's piece (Take), it must play a move immediately by adopting the step of the taken piece (Make).
Example Bxe3 (=Be4)
And now, we remove the h column and it becomes 7x8 and it's also vertical cylindrical, in other words, if you want to be pedagogue, you can say a=h.
A masterpiece by King Artur
7 - #4 7x8 vertical cylindrical chessboard
white Kc8 Ba1b2
black Pc7 Ke3
#4(3+2)7x8 chessboardvertical cylindricalb) c7-->d7
{}
a) {}
1.Bb2-c1+! {}
1...Ke3-f2 2.Ba1-c6+ Kf2-g1 3.Bc1-e6+ Kg1-f1 4.Be6-c4 # {}
2...Kf2-e2 3.Bc1-a6+ Ke2-d1 4.Bc6-a4 # {}
2...Kf2-f1 3.Bc1-a6+ Kf1-g1 4.Ba6-c4 # {}
1...Ke3-d3 2.Bc1-a6+ Kd3-c2 3.Ba1-f6+ Kc2-b1 4.Ba6-f4 # {}
1...Ke3-e2 2.Bc1-a6+ Ke2-d1 3.Ba1-f6+ Kd1-e1 4.Bf6-a4 # {}
2...Ke2-f2 3.Ba1-c6+ Kf2-g1 4.Ba6-c4 # {}
2...Ke2-e1 3.Ba1-c6+ Ke1-d1 4.Bc6-a4 # {}
b) bPc7-->d7 {}
1.Ba1-b7+! {}
1...Ke3-f2 2.Bb2*d7+ Kf2-g1 3.Bb7-d5+ Kg1-f1 4.Bd7-b5 # {}
2...Kf2-e2 3.Bd7-b5+ Ke2-d1 4.Bb7-g5 # {}
2...Kf2-f1 3.Bd7-b5+ Kf1-g1 4.Bb7-d5 # {}
1...Ke3-d3 2.Bb2-g7+ Kd3-c2 3.Bb7-g5+ Kc2-b1 4.Bg7-e5 # {}
1...Ke3-e2 2.Bb2-g7+ Ke2-d1 3.Bb7-g5+ Kd1-e1 4.Bg7-b5 # {}
2...Ke2-f2 3.Bg7-b5+ Kf2-g1 4.Bb7-d5 # {}
2...Ke2-e1 3.Bg7-b5+ Ke1-d1 4.Bb7-g5 #
Wonderful !
A small blow of Masand on the head ?
8 - #2 Masand
white Bc1 Kf1 Qh5 Pb6c7d4h2 Sa6 Rb4b5
black Se1 Pg7g6e6c6f3d3c2a4 Rf4a3 Bh6e4 Kc3
#2 Masand(10+14)
{}
1.Qh5-g4 ? {or}
1.Qh5*g6 ? {or}
1.Qh5-h3 ? {or}
1.Qh5-h4 ? {or}
1...c6*b5 !{}
1.Qh5-d5 ? threat:
2.Rb4-c4[a4=w][d4=b][c6=w] #
but
1...Se1-g2 !{}
1.Qh5-e5 ? threat:
2.d4-d5 #
but
1...Be4-f5 !{}
1.Rb5-c5[h5=b][c6=w] + ?
but
1...Qh5*c5 !{}
1.Rb4-c4[a4=w][d4=b][c6=w] + ?
but
1...Kc3*c4 !{}
1.Bc1-d2[e1=w][f4=w] + ?{ou}
1.Bc1-b2[a3=w] + ?
1...Kc3-d2 !{}
1.d4-d5 ! threat:
2.Rb5-c5[d5=b][c6=w] #{}
1...d3-d2
2.Bc1-b2[a3=w] #{}
1...Be4-f5
2.Rb4-c4[a4=w][f4=w][c6=w] #{}
1...Be4*d5
2.Qh5-e5[e1=w][f4=w][d5=w][e6=w][c7=b][g7=w] #{}
1...c6*b5
2.c7-c8=R #
Masand : a piece whose movement threatens the opponent's King by putting him in check causes the pieces under his control to change colour.
A collaborative work by Guy
9 - h#2 isardam Parrain Circe
white Pf6 Kg2 Rh5
black Qe8 Kc3 Be7
h#2 Isardam Parrain Circe(3+3)3 solutions
{}
1.Kc3-c4 f6-f7 2.Qe8-g8 + f7*g8=Q #{}
1.Qe8-d8 f6*e7 2.Kc3-d4[+bBf8] e7*d8=Q #{}
1.Qe8-f8 f6*e7 2.Kc3-b4[+bBd8] e7*f8=Q #
Isardam : the reciprocal "observation" of two opposing pieces of same nature is illegal
Parrain Circe : a captured piece remains under the capture square and is reborn by making the same move as the piece that plays immediately afterwards.
The Annan rule gives strange things, as we'll see right away.
10 - #2 Annan Chess
white Bf5b8 Kh7 Qe1 Pe3f7 Sc3d6 Rg8
black Pc4d5e4g4 Bg2g7 Ra2 Kf3
#2 Annan(9+8)
{}
1.Sd6*e4 ? threat:
2.Qe1-g3 #
but
1...Ra2-f2 !{}
1.Bf5*g4 + ?
but
1...Kf3*g4 !{}
1.Qe1-g3 + ?
but
1...Kf3*g3 !{}
1.Qe1-e2 + ?
but
1...Ra2*e2 !{}
1.Sd6*c4 ! threat:
2.Qe1-g3 #{}
1...Ra2-f2
2.Sc4-d2 #{}
1...Bg7*c3
2.Bf5*g4 #{}
1...Bg7-e5
2.Sc4*e5 #
Annan : a piece in front of another one of his side takes the march of this piece
example : if the pg4 was in g3, the Bg2 could only go to g1. If the WQ was in c2, we could play Nc3xg7 (hallucinating, no?)
A little bit of Mars Circe to travel even further
11 - h#4 Mars Circe
white Pe5f5 Kb7
black Qg4 Pg2b5e7f7 Kf4 Ra2e4 Ba7
h#4 Circé martien(3+9)2 solutions
{}
1.Ra2-f2 Kb7*f2 {} 2.Ba7-e3 Kf2-e2 {} 3.Kf4-f3 f5-f6 {} 4.Be3-f4 Ke2-e3 #{}
1.Ra2-e2 Kb7*e2 {} 2.Ba7-d4 Ke2-f2 {} 3.Kf4-e3 e5-e6 {} 4.Qg4-f4 Kf2-f3 #
Mars Circe : To capture, a piece virtually goes through its original square.
Example: if black plays Rd2, white could in theory play Kxd2, but ....
For the agape, in addition to Guy's major works, the Master was able to present some diagrams.
An Imitator comes to the battlefield
12 - h#2 with Imitator
neutral Id2
white Kb6 Re4
black Kd5 Bd1
h#2(2+2)Imitator d2b) Fd1-->f3
{}
a) {}
1.Bd1-e2[Ie3] Kb6-c6[If3] + 2.Kd5-c5[Ie3] Re4-d4[Id3] #{}
b) bBd1-->f3{}
1.Bf3-g4[Ie3] Kb6-c6[If3] + 2.Kd5-d6[If4] Re4-e5[If5] #
Imitator, as its name suggests, it is an element that imitates any piece movement.
If for any reason its imitation is impossible, the move is illegal.
Example: Rb4 is possible but Ra4 is illegal because the Imitator would leave the chessboard
The last problem with Take&Make
13 - h#2 Take&Make
white Pd3 Kc7 Bc4 Se5
black Pd7c3 Kd4
h#2 Take&Make(4+3)b) c3-->e3
{}
a) {}
1.d7-d5 Kc7-d6 2.d5*c4-f7 Se5*f7-f5 #{}
b) bPc3-->e3{}
1.d7-d6 Kc7-c6 2.d6*e5-f7 Bc4*f7-f6 #
I hope you found this presentation more enjoyable than the previous ones.
Thanks to the Master for the electronic version.
Happy holidays to all.
Yours sincerely
Le greffier
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