Köko In Köko, at the end of its move, a piece must be in contact with another.
lion the Lion needs a sautoir behind which it lands on one of the squares free or occupied by an opponent's piece
archbishop Bishop rebounds to the board
Novomesky, D.2013
white ARa1
white Royal LIb1
black ARe7
black Royal LIc7
{}
{}
a) {}
1.ARa1-b2 ARe7-d6 2.ARb2-e7+ {(via c1-h6-f8)} rLIc7-f7 3.ARe7-c7 rLIf7-b7 4.ARc7-c5 {(via b8-a7)} ARd6-b4 {(via f8-h6-c1-a3)} 5.ARc5-b6
ARb4-b2 {(the other moves of the AR are self-checks) ==. Double pat: the 2
Archbishops are pinned and each move by Lion would check him by his
colleague. Except a "null" move like Bb6-b6 (via d8-h4-e1-a5)}
b) wrLIb1-->g4 {royal Lion b1 to g4}
1.ARa1-f6 ARe7-f4 {(via a3-c1 or f8-h6)} 2.ARf6-b6 {(via h4-e1-a5)}
ARf4-g3 3.ARb6-f2 ARg3-g5 4.rLIg4-g6 ARg5-f6 5.rLIg6-b6 + {(the Arf2 targeting Lrc7 via g1-h2 is now
checking in köko)} ARf6-g3 {== : both Lrd8, Lrg1 and ...Lra5, Lrh2
are forbidden by the Ar, which are pinned}
c) wrLIb1-->c8 {royal Lion b1 to c8}
1.rLIc8-c6 rLIc7-c5 2.ARa1-f6 {(would have checked on the 1st move because of
the rLc8)} ARe7-g5 3.rLIc6-h6 ARg5-b4 4.ARf6-d4 + rLIc5-e3 5.ARd4-f4 +
{(via a7-b8, checking by the rL, but not by the Ar in köko)} ARb4-g5 {(via e1-h4) ==. Ar are pinned,
Lr's are frozen. No echo: instead, the three double pats are
varied.}
4 - 2# Shrinking Men
Shrinking men "" (rétrécissants) : a unit may not play longer move than the previous one.
The convention used here for promotions is that the promoted unit is "reborn" and may play any distance it wishes.
{Essais :}
1.Qb7*a8 ? {don't check}
1.Qb7-f3 ? {(5,66 long) O-O-O ! (legal because Queen can come from a promotion on b8, then Qb1, of length 7 and Qb7 of length 6)}
1...Ke8-d8 ? 2.Qf3-f8 # {(5 long)} 2.Qf3*a8 # {is illegal}
1.Qb7-h1 ! {(8,48 long)}
1...Ke8-d8 {(1... O-O-O illegal)} 2.Qh1-h8 # {Before playing Qb7-h1, White Queen could only have played moves of greater or equal length.So it could not have come from d1 (nor from a promotion to b8, c8 etc.) but comes from a promotion to a8 (to Qa8-h1 and then Qh1-b7),which broke castling.}
5 - 2# anti-circe with Grasshoppers
Anti-circe after a capture, the captured piece disappears and the capuring one is reborn on its original square if it is free
Grasshopper piece moving on the Queen's lines with the help of a sautoir behind which it lands if the square is free or occupied by an opposing piece
Stojnic, D.2010
white Ph7f3f2e2c2a3 Se6f6 Be8e5 Ka4 Rg2
black Pg7g6h4f4c3a5 Kc4 Sa1 Gh2f7
{ }
1.Ka4-b5 + ? Gh2*e5[bGe5->e1] ! {occupying the rebirth square of the white King.}
1.Be8-b5 + ? Gh2*f2[bGf2->f1] ! {occupying the white Bishop's rebirth square.}
1.Rg2-g4 ? {(threatens} 2.Be8-b5 # {, but not} 2.Be5*f4[wBf4->c1] + ? Gf7*h7[bGh7->h1] ! {, nor} 2.Ka4-b5 + ? Gh2*e2[bGe2->e1] ! {)
Grasshoppers parry the threat by threatening 2...Gxf3-f1!)} 1...Gh2-h5 {display-departure-rank}? 2.Ka4-b5 # {}
1...Gf7-h5 ? {display-departure-rank} 2.Be5*f4[wBf4->c1] # {.
But} 1...Gf7-f5 ! 2.Be8-b5 + Gf5*f3[bGf3->f1] ! {}
1.Be5-b8 ? {(or elsewhere)} Gf7-h5 ! {display-departure-rank} {}
1.Be5*f4[wBf4->c1] ! {(menace} 2.Ka4-b5 # {)}
1...Sa1*c2[bSc2->g8]
2.Ka4-b3 # {Grasshoppers parry the threat by threatening 2...Gxe2-e1!}
1...Gh2-h5 {display-departure-rank}
2.Be8-b5 # {}
1...Gf7-h5 {display-departure-rank}
2.Rg2-g4 #
{ Cycle ABCD-DCBA.}
6 - h#3 2 sol parrain circe with neutral pieces
parrain circe a captured piece remains "under the square" of capture.
It makes an equipollent move (from that square) to that of the next playing piece.
neutral piecea piece that can be played by both sides
lost piecesIn Lost Pieces (Verlorene Steine), after each move I play
all my opponent's units automatically disappear if they are attacked by a unit of my side, without being able to evade it.
But if the unit attacked by me has an available square, even if it is pinned, it does not disappear.
Werner, D.2017
white Sc4e1 Rg2g4 Kh1
black Kf5 Pa6e3e4e6f6h4 Ra3e5 Ba8b8 Sd2
white Bc1f1 Ke1 Qd1 Pa2b2c2d2e2f2g2h2 Sb1g1 Ra1h1
black Bc8f8 Ke8 Qd8 Pa7b7c7d7e7f7g7h7 Sb8g8 Ra8h8
{ }
1.h2-h4 Sg8-f6 2.Rh1-h3 Sf6-e4 3.Rh3-f3 f7-f5[-f2] 4.Rf3-d3 {(You don't remove the d7-pawn
because Black can evade the attack by 4...Nd6)}
f5-f4[-d2] 5.h4-h5 {(The f4-pawn is not removed because Black can evade the Bc1 attack by} 5...Se4-d2 {.)}
5...Se4-f6[-h5] 6.Rd3-h3[-f4]
{(The d7-pawn (attacked by Qd1) is not suppressed because Black can evade the attack by} 6...Sf6-d5 {.
But Pf4 is removed.)}
6...Sf6-g8 7.Rh3-h1[-d7] ! {Diagram = initial position without d2, f2, h2, d7 & f7.}
{Why was Pa7 not removed just before arriving at the diagram?
The only possibility is that the last white move was Ka6 with a PNb7! The
Pa7 does not disappear because Black can evade the attack by ...
bxa6. But Pb7 disappears! Moreover, the only way that Pe5 can only have
not disappeared is that it was not already in e5. And he cannot come
that of e7, because in e6, Rg6 would have been intercepted and thus Pb7 could have been intercepted
to protect from attack. The "prise en passant" is therefore justified.}
1.f5-f6[-e5][-a7] ? Bc1-g5 ! 2.Rd5*g5 {display-departure-file} Kh8-h7[-g6] {}
1.f5*e6 ep.[-a7] ! Bc1-g5 2.Rd5*g5 Kh8-h7
{g6 Rook does not disappear because it has the leak in f6.)} 3.Rg5-h5 #
10 - series #10 anti-patrol (ou lortap)
anti-patrol one must not be supported by a unit of one's own side to take or give check.
Sobrecases, G.2008
white Sa2 Kb3
black Qf6 Pa3c5d6e7g6f5e4d3 Kb1 Bf8h7
roseExtended knight in a rounded shape
Typically, in addition to normal Knight moves, the Rose e6 can go to c5, b3, c1, f4, e2, c1, a2, g5, h3 and g1.
locusteGrasshopper eating its hurdle, which is therefore necessarily an opponent's piece.
{}
1...Kg7-h8 {To prohibit the rebirth of Rooks in h8.} 2.Kc6*b5[+wSb1] Sb1*c3 +
3.Kb5*c4[+wSb1] Sb1*a3 + 4.Kc4*d3[+wSb1] Kh8*g8 {pat!}
14 - h#2 2 solutions anti-circe couscous madrasi
anti-circe couscousthe capturing piece is reborn on the original square of the captured piece.
madrasitwo opposing pieces of the same nature which observe each other are mutually paralysed
15 - h#2 2 solutions with kangourou et Andernach Grasshopper
kangouroua cousin of the Grasshopper who needs a double hurdle
Andernach GrasshopperGrasshopper that makes the colour of the hurdle change each time it jumps
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