{}
1.Ke2-f1 Bb1-d3 2.c3-c2 Rc1-d1 #
{ Let us note that the 8 possible promotions continue to observe at least one of the 4 white figures aiming at the black King.
}
1.c3-c2 Rc1-d1 2.c2-c1=Q ! Bb1-d3 #
{Note that on } 2.c2-c1=R ? {we have not } Bb1-d3 # {because of } 3.Ke2*d1!
{Reversal of the 2 white moves.}
Make&Take before capturing, we play as the unit we wish to capture.
We respect not only its march, but its colour:
a black knight (or king) will play a white pawn move if he wants to capture it.
{}
1.Sh8-f7 2.Sf7-d6 {(2.Ne5 ? would check via f5 ou e4)}
3.Sd6-c4 4.Sc4-b2 5.Ka2-a3 {(Which before was illegal because of b3-b2xa3.)}
6.Ka3-a4 {(not in check because Pb3 must start with a king move)}
7.Sb2-c4! {(return)} 8.Sc4-a5 ! {(the only route to b4, as you cannot go through d1, d3 or d5 which would check)}
9.Sa5-c6 10.Sc6-b4 11.Ka4-a5 {(no more b3-b4xa5)}
12.Ka5-b6 13.Sb4-c6 !! c2-c4 #
{ The b5 square is controlled, not by Pc4, but by Pb3 via a4!
And Pb7 controls a7 & c7 (via b6).
Two false leads :}
13.Sb4-a2 ? c2-c4 + 14.Sa2*c4! {}
13.Sb4-a6 ? c2-c4 + 14.Sa6-c5!
4 - PG 6,5 make & take
Sick, O.2019
white Kd6 Pb3a2c2d2e2f2h2 Ra1h1 Sb1g1 Bc1f1
black Ra8 Sb8 Bc8 Qd8 Ke8 Pa7b7c7d7e7f7h7
white Bc1f1 Ke1 Qd1 Pa2b2c2d2e2f2g2h2 Sb1g1 Ra1h1
black Bc8f8 Ke8 Qd8 Pa7b7c7d7e7f7g7h7 Sb8g8 Ra8h8
{ }
1.b2-b3 g7*c1=S {(via b2, in homage to Bc1) }
2.g2*h8=B {(via g7, in homage to Rh8)} Sc1*d1 {(via b2, in homage to Qd1)}
3.Bh8-b2 Sg8-f6 {}
4.Bb2-c1 {(Pronkin)} Sd1-c3 + {}
5.Ke1*c3 Sf6-e4 + {(double check by Bf8 via g7 and Knight via d5, in homage to Kc3)}
6.Kc3*f8 {(via g7, in homage to Bf8.
We notice that neither King is attacked by the other)} Se4-d6+ 7.Kf8*d6
{(via e6, in homage to Nd6)
The reversal 3...Nc3+ 4 Kd3xc3 is impossible, the white king being then in check by the Bf8 via g7.}
5 - 2# extinction
Rosner, E & Gockel H2017
white Kc8 Pd7f6c5g5e3h3f2 Ra1 Bd1
black Ka7 Pc6e6d5a4h4d3 Sf5 Rc4
#2 Extinction chess(10+9)
the King is a unit like any other (so you can promote to King).
A side wins when it has made any variety of units disappear, so by checkmating either the
King, Queen, last rook, last bishop, last knight, or last pawn.
{ Tries : }
1.d7-d8=B ? {(thematic try ; threatens} 2.Bd1-g4 # {dominating the bN ;
and} 2...Rc4*g4 {does not extinguish white Bishop species since it remains the Bd8
and therefore is illegal since} 3.h3*g4 {extinct black Rook species)}
1...Rc4*c5 2.Ra1*a4 # { and not} 2.Bd1-g4 + ? Sf5-d6 ! {but black parry with} 1...d3-d2 ! 2.Bd1-g4 + d2-d1=S ! {}
1.d7-d8=Q ? {(threatens} 2.Qd8-a5 # {and not } 2.Qd8-b6 + Ka7*b6 # ! {)
without Pd5, there would be } 2.Qd8*d3 # {extinguishing either of the black Rook or Knight species.
without the Pe6, } 2.Qd8-d7 {would mate, dominating the bN}
1...Rc4*c5 2.Ra1*a4 # {or} 2.Bd1-g4 # {but} 1...Ka7-a6 ! {simply counter the threat}
1.d7-d8=R ! {(threatens} 2.Ra1*a4 # {by double check.} 2...Rc4*a4
{does not extinguish the white Rook species since it remains the Rd8
and therefore is illegal since} 3.Bd1*a4 {extinct black Rook species.)}
1...a4-a3 2.Ra1*a3 # {}
1...Rc4*c5 2.Bd1-g4 #
{The threat in the try becomes variation mate (on 1...Rxc5) in the real game and vice versa
Two-coloured AUW between the tries and the solution}
6 - aidé 5# Chameleon Circe b) ♔e1
Rice, J.2017
white Sf4 Kg2
black Ke5 Pf5g4
h#5 Chameleon Circe(2+3)b) ♔g2 ---> e1
A captured piece rises in rank before being reborn, according to the C-F-T-D pattern.
A captured Queen becomes a Knight and the cycle resumes.
Pawns are reborn as in normal Circe
moves along the Queen's lines with a sautoir behind which it lands.
The landing square must be empty or occupied by an opponent's piece
The Moose is a Grasshopper which is at a 45 degree angle to its supposed landing square.
When the sautoir is adjacent to it, it is a knight's step
Add a comment