py_20220111
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1 - 2# chinese pieces
Stosic, M.1974
white VAa8c7g7h2h3g4c3 PAa2a4a6b7 Kb5 MAh7
black Ke5
#2(13+1)
🨶a8, c7, g7, h2, h3, g4, c3: Vaos🨵a2, a4, a6, b7: Paos🨷h7: Mao
{}
1.PAa2-a3 ! zugzwang.
1...Ke5-d6
2.PAa4-f4 #
1...Ke5-f4
2.VAg7-d4 #
1...Ke5-d4
2.PAa6-f6 #
1...Ke5-f6
2.VAh2-d6 #
{Star escape with an ABCD-BCDA cycle on the 4 black squares in question.
A commentator says that 🨷h7 could be replaced by a ♟g5, but it is obvious that the author preferred a "Rex solus"}
2 - double stalemate serial help 8== mars circé
Kotesovec, V.2005
white Qb8 Ba7b5 Sb7 Ka6 Pc5c4b4a2f6
black Pc6a4c3c2b2d2f7 Kc1 Qd1
ser-h==8 circé martien(10+9)
{}
1.Kc1-b1 2.c2-c1=S {(2.Qe1 ? illegal as it would put Kb1 in the grip of Qb8)}
3.Qd1-e1 4.d2-d1=B ! {(4.Kc2 ? illegal always Qb8)
(4..d1=R ? would allow 9.Rd1-a8xDb8)}
5.Kb1-c2 6.b2-b1=R ! {(6.Kd2 ? illegal as it would put King in the grip of Nb7)
(6.b1=B ? would allow 9...Bb1-c8xCb7)}
7.Kc2-d2 8.c3-c2 9.a2-a3
{Double stalemat.
Bd1 pins Nb7, which pins Rb1, which pins Ba7, which pins Nc1, which pins Qb8,
which pins Bd1.
wK and bQ immobilise each other.
Pf6 forbids ... Ke3, Pb4 ...Kc3 and Bb5 ...Ke2 (...Kd3). Pc6 (capturing by c7) is immobilized.}
3 - 2# sat
Gockel, H.2017
white Bb8 Ra5 Pd7e7f7g2f3 Ke6 Sf6
black Ba8 Pd6e5g6g4g3e4 Rg5d3 Sh5c4 Kh4
#2 SAT(9+12)
{}
1.Sf6-e8 [ou} 1.Sf6-g8 ? {(threatens} 2.f3*g4 # {)}
1...Rd3*f3 2.g2*f3 # {(or} 1...e4*f3 2.g2*f3 # {freeing h3) but} 1...Sc4-e3 ! {}
1.Sf6-h7 ? {(threatens} 2.Sh7*g5 # {)}
1...e4*f3 2.g2*f3 # {(or} 1...Rg5-f5 2.f3*g4 # {) but} 1...e4-e3 ! {}
1.Sf6*e4 ! {(threatens} 2.Se4*g3 # {)}
1...Rd3*f3 2.g2*f3 # {}
1...d6-d5 2.Se4*g5 # {(and not } 2.Se4*g3 + ? e5-e4 ! {which opens the Bb8 diagonal) }
1...Ba8*e4 2.f3*g4 #
{Dombrovskis theme: try threats are found in variants in the real play.
(} 2.f3*g4 + ? Rg5*g4 ! {) (}
2.Se4*g5 + ? e5-e4 ! {)}
4 - h#2,5 take & make b) ♞b7 on a7
Cefle, K.2021
white Rh8 Kg1 Ph2
black Ka8 Qc8 Sb7c7 Pe7 Bf6 Rb5e4
h#2.5 Take&Make(3+8)b) ♞b7 --> a7
{
} a) {} 1...h2-h4 2.Rb5-g5 + h4*g5-g8=R 3.Qc8-e8 Rg8*e8-a4 # { but not } 2...h4*g5-g8=Q ? 3.Qc8-e8 Qg8*e8-a4 + ? { as blacks have } 4.Re4*a4-e8 ! {} b) bSb7-->a7 {Nb7 --> a7} 1...h2-h3 2.Re4-g4 + h3*g4-g8=B 3.Qc8-e6 Bg8*e6-e4 # {(but not} 3...Bg8*e6-d5 + ? 4.Sc7*d5-g8 ! { and no longer} 2...h3*g4-g8=Q ? 3.Qc8-e8 Qg8*e8-c6 + ? { as blacks have } 4.Sa7*c6-e8 !
} a) {} 1...h2-h4 2.Rb5-g5 + h4*g5-g8=R 3.Qc8-e8 Rg8*e8-a4 # { but not } 2...h4*g5-g8=Q ? 3.Qc8-e8 Qg8*e8-a4 + ? { as blacks have } 4.Re4*a4-e8 ! {} b) bSb7-->a7 {Nb7 --> a7} 1...h2-h3 2.Re4-g4 + h3*g4-g8=B 3.Qc8-e6 Bg8*e6-e4 # {(but not} 3...Bg8*e6-d5 + ? 4.Sc7*d5-g8 ! { and no longer} 2...h3*g4-g8=Q ? 3.Qc8-e8 Qg8*e8-c6 + ? { as blacks have } 4.Sa7*c6-e8 !
5 - serial 6# orphanns Grasshoppers
Brown, DL.2021
white Kd7 WOf5e5
black Gg8f8 Rg5 Pf6e6a7b7 BOb8 Ka8
ser-#6(3+9)b) ⚆e5 --> g3
⚆f5, e5, ⚈b8: Orphanns🨥g8, f8: Grasshoppers
{}
a) {}
1.Kd7*e6 2.Ke6-d7 3.WOf5-c8 4.WOe5-a5 5.WOa5-a6 6.Kd7-d8 # {
really checkmat because } 6...Gf8*c8 {would activate Orphan a6}
b) wOe5-->g3 {Oe5 --> g3}
1.Kd7-d6 2.Kd6-c5 3.Kc5-b4 4.WOf5-a5 5.WOg3-a3 6.WOa5-d5 # {(double check)}
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