py_20181002

{

try
} 1.Sd7-e5 ? {
} 1...Sa2-c1 ! 2.Rb1*c1 + Kc2-b3 ! {Bc4 is paralysed
} 1...Sd8-e6 2.Bc4*d3 # {B is defended by Ne5
} 1...Sd8-f7 2.Bc4-b3 # {: Nf7, paralysed, cannot unmask the bB; and no} 2.Bc4*d3 + ? Kc2*d3 ! {: the square d3 seems however the most protected square of the chessboard !
} 1...Sd8-b7 2.Qe4*d3 # {: Q is defended by Ne5
} 1...Sd8-c6 2.Qe4-g2 # {: Nc6, paralysed, cannot unmask the bQ; and not} 2.Qe4*d3 + ? Kc2*d3 ! {

} 1.Sd7-c5 ! {blocus} 1...Sa2-c1 2.Rb1*c1 # {(b3 controlled by Nc5). Two pairs of exchanged mates.
} 1...Sd8-e6 2.Bc4-b3 # {: Ne6, paralysed, cannot unmask the bB; and no} 2.Bc4*d3 + ? Kc2*d3 ! {
} 1...Sd8-f7 2.Bc4*d3 # {: B is defended by Nc5
} 1...Sd8-b7 2.Qe4-g2 # {# : Nb7, paralysed, cannot unmask the bQ; and not} 2.Qe4*d3 + ? Kc2*d3 ! {
} 1...Sd8-c6 2.Qe4*d3 # {: Q is defended by Nc5
and of course} 1...b4-b3 2.Sb5-a3 #

{

} 1.Se4-g3 ! {threatens} 2.Rh1-b1 + 2...Kd5-e4 3.Rb1-b3 + 3...Sh5*g3[bSg3->b8] # {

} 1...Rb7-b8 2.Rh1-c1 + 2...Kd5-c5 3.Sg3-e4 + 3...Bc6*e4[bBe4->c8] # {

} 1...Ba7-b8 2.Rh1-a1 + 2...Kd5-d4 3.Sg7-f5 + {display-departure-rank} 3...Rg5*f5[bRf5->a8] # {

Correspondances b1-b8, c1-c8 & a1-a8.}

{

} 1.ALa7-b8[+wSb8] {becomes jumper (1,2)} c6-c5 {
} 2.Sb8-d7[+wCHd7] {becomes jumper (1.3)} c5-c4 {
} 3.CHd7-g6[+wGIg6] {becomes jumper (1,4)} c4-c3 {
} 4.GIg6-f2 # {becomes jumper (1,5) and checkmates}

{

} 1.Ba1-h8 {(becomes (6,6))} 2.Bh8-b2 {(becomes (5,5))} 3.Bb2-g7 {(becomes (4,4))

} 4.Bg7-c3 {(becomes (3,3))} 5.Bc3-f6 {(becomes (2,2))} 6.Bf6-d8 {(becomes (1,1))

} 7.Bd8-c7 {(becomes (0,0))} b5-b6 # {

By deflating, it became immobile !}

{

} 1.Ng2-h8 {It chooses to deflate, so it becomes (0,5)
} 2.Nh8-h3 {Now he's re-inflating : (1,6)
} 3.Nh3-b4 4.c2-c3 # {Having become (2.7), it no longer has a move.

} 1.Ng2-a3 {it chooses to inflate, so it becomes (2,7)
} 2.Na3-h5 {it redeflates : (1,6)
} 3.Nh5-b4 4.c2-c3 # {become (0.5) it can only go to g4, which is controlled}

{

} a) {
} 1.Qc6-c1 Rb7-c7 2.Se7-d5 Ba1-e5 # ! {
car sur} 3.Kd6*e5 f4*e5 # {is possible,
the bQ forbidding a rebirth of the wB in c1 which would lead to the paralysis of Pf4 because of bBh6.

} b) bPf3-->f6 {pf3-->f6

} 1.Qc6-h1 Ba1-d4 2.Se7-c6 Rb7-d7 # {as on } 3.Kd6*d7 Bh3*d7 # {is possible, as the bQ prohibits a rebirth of bR in h1 which would would lead to paralysis of Bh3 due to bRh4. And the solution of (a) (} 1.Qc6-c1 Rb7-c7 2.Se7-d5 Ba1-e5 + {) is faced with } 3.Kd6*e5 {(4 fxKe5 illegal because of Pf6).}

{

Tries
} 1.Kd6-c6[+wPd6] ? {threatens} 2.Kc6-d7[+wPc6] # {
} 1...BHb5-d7[+bPb5] 2.Kc6*b5[+wPc6] # {
but} 1...d3-d2 ! 2.Kc6-d7[+wPc6] + BHb5-f1[+bPb5] {
} 1.Kd6-c7[+wPd6] ? {threatens} 2.Kc7*c8[+wPc7] # {
} 1...d3-d2 2.Kc7-d8[+wPc7] # {
but} 1...BHa5-d2[+bPa5] ! {
} 1.Kd6-e7[+wPd6] ? {threatens} 2.Ke7-d8[+wPe7] # {
} 1...d3-d2 2.Ke7-e8[+wPe7] # {
} 1...BHa5-d2[+bPa5] 2.Ke7-e8[+wPe7] # {
} 1...BHg5-d8[+bPg5] 2.Ke7-f6[+wPe7] # {
but} 1...Kh8-g7 ! 2.Ke7-d8[+wPe7] + Kg7-f6[+bPg7] ! {

} 1.Kd6-d7[+wPd6] ! {threatens} 2.Kd7-e8[+wPd7] # {
} 1...d3-d2 2.Kd7*c8[+wPd7] # {
} 1...BHb5-e8[+bPb5] 2.Kd7-c6[+wPd7] # {
(} 1...RHe2-b2[+bPe2] {does not counteract the threat, since it leaves a sentry in e2).

"Ukrainian" cycle: AB-BC-CA considering the threat and the 1...d2 variant. Composed during a solar eclipse,
which the author comments as follows: "Such a combination of fairy elements makes one think of an eclipse of the human brain !".}

{

} 1.ROf1*f7[+bPf2] f2-f1=G 2.ROf7*b7[+bPb2] b2-b1=G 3.ROb7*h7[+bPh2] h2-h1=G 4.ROh7*d7[+bPd2] d2-d1=G 5.ROd7*d1[+bGd8] POe6-c4[-d5] 6.ROd1*h1[+bGh8] POc4-b5 7.ROh1*b1[+bGb8] + POb5-a4 8.ROb1*f1[+bGf8] {stalemate

model stalemate with the 8 Grasshoppers on the last row. The Poseidon could not play earlier due to tempo.}

{

} 1.Kd5-e5 ? g4-g5 2.Ke5-f5 Kd3-d4 3.Kf5*g5 Kd4-e5 4.Kg5-h5 Ke5-f6 5.g6-g5 Kf6-g7 6.g5-g4 Kg7-h7 7.g4-g3 Kh7-g7 8.g3-g2[+wPg2] Kg7-h7 9.f4-f3 g2-g3 10.f3-f2[+wPf2] f2-f4 {and here no black move before } 11...g3-g4 # ! {

} 1.f4-f3 ! Kd3-c3 2.f3-f2[+wPf2] f2-f4 3.Kd5-e4 f4-f5 4.Ke4-f4 f5-f6 5.Kf4-g5 f6-f7[+bPf7] 6.f7-f5 Kc3-d4 7.f5*g4 Kd4-e5 8.Kg5-h5 Ke5-f6 9.g4-g3 Kf6-g7 10.g3-g2[+wPg2] g2-g3 11.g6-g5 g3-g4 # !

{

} 1.Sf2*h3 ? {threatens} 2.Bf1*d3 # {
} 1...Ba1*b2 2.Sf7*d6 # {
} 1...Rg8-g4 2.Sf7*d6 # {
but} 1...Rg8*g3 ! {
} 1.Sf2-g4 ? {threatens} 2.Sf7*d6 # {
} 1...Ba1*b2 2.Sg4-e3 # {
} 1...Sb6-a4 2.Bf1*d3 # {
} 1...Kc4*d4 2.Rb2-b4 # {
} 1...h3*g2 2.Rb2-b4 # {
but} 1...Rg8-d8 ! {

} 1.Sf2-e4 ! {The threat is} 2.Rb2-b4 # {
} 1...Ba1*b2 2.Se4*d6 # {display-departure-rank} {
} 1...Kc4*d5 2.Se4-c3 # {
} 1...Sb6*d5 2.Bf1*d3 # {
} 1...e6*d5 2.Sf7*d6 # {display-departure-rank} {

"Tertiary threat correction".}