py_20211012
Click in the right part of the chessboard to move forward, left to move backward... or directly on the move in the solution
1 - 2# avec chinese pieces
Smulders, K.1976
white Pc2d2f3g2 Sb2 WLd5d7f5h8h6 Kb1 WVa7d3
black BVa1 BLc1 MAe4 Ke1 Pb4e2g4 PAe6
#2(13+8)
🨻e6: Pao 🨶a7, d3, 🨼a1: Vao🨓e4: Mao🨴d5, d7, f5, h8, h6, 🨺c1: Leo
{}
1.WLd7-c6 !{display-departure-square} {(threatens } 2.LEc6*e4 #{display-departure-square} {)}
1...BLc1*h6{display-departure-square} {ou} 1...BLc1*c6{display-departure-square}
2.WLh8*a1 #{display-departure-square} {}
1...MAe4-c3 {(intercepting the Vao a1)}
2.WLh8-e5 #{display-departure-square} {}
1...MAe4*d2 {(self-blocking of d2)}
2.WLd5-e4 # {display-departure-square}{}
1...MAe4-f2 {(self-blocking of f2)}
2.WLf5-e4 #{display-departure-square} {}
1...MAe4-g3
2.WLh6-h4 #{display-departure-square} { : Mao is paralized by 3 pawns ! }
1...MAe4-g5 {(d2 is now controlled by Léo h6)}
2.WLd5-e4 # {display-departure-square}{}
1...MAe4-f6
2.WLh6*e6 #{display-departure-square} {}
1...MAe4-d6
2.WLc6*e6 #{display-departure-square} {}
1...MAe4-c5 {(f2 is now controlled by Vao a7)}
2.WLf5-e4 #{display-departure-square} {
Rosace of Mao.}
2 - 2# with Locusts
Diot, R.1976
white Bf6h3 Ke1 WLd1d3g7 Pg6f5e6b5f2g3 Sd5c1 Rc6c5
black Ba1 Ke4 BLd4 Pc3f3 Sh8 Rb3b8
#2(16+8)🨊d1, d3, g7, 🨐d4: Locust
{}
1.Bf6-d8 ! {(threatens } 2.Sd5-f6 # {)}
1...BLd4*f2-g1 {(for } 2.Sd5-f6 + Ke4-e3 {)} 2.Rc5-c4 # {(but not} 2.WLd1*b3-a4 {because Ld1 is pinned. }
1...BLd4*c5-b6 {(for } 2.Sd5-f6 + Ke4-e5 {)} 2.Rc6-c4 # {(but neither} 2.WLd1*b3-a4 + BLb6*b5-b4 ! {. Nor} 2.WLd1*f3-g4+ Ke4*f5 ! {.)}
1...BLd4*d3-d2 {(for } 2.Sd5-f6 + Ke4-d4 {)} 2.WLd1*b3-a4 # {(but not} 2.Rc5-c4+ Ke4*d5 ! {.)}
1...BLd4*d5-d6 2.WLd1*f3-g4 # {(because f5 is now controlled by Rc5.
But neither} 2.Rc5-c4 + Ke4-d5 ! {nor} 2.WLd1*b3-a4 + BLd6*c5-b4 ! {. Nor} 2.Rc5-e5 + BLd6*e5-f4 {.)}
1...Ke4-e5 2.Sd5*c3 #
3 - serial helped stalemate 9= Mars Circe
Innocenti, D.2017
white Qe3 Pb5 Ka4 Ba1c2 Sc7
black Se2 Kc3 Rb2d8 Bd1
ser-h=9 mars circe(6+5)
{}
1.Se2-c1 2.Bd1-f3 {
Ici } 3.Rd8-d1 ? {would check white King and Kd2 would be illegal}
3.Bf3-a8 4.Rd8-d1 {}
5.Rd1-e1 6.Ba8-f3 {}
7.Bf3-d1 {back} 8.Kc3-d2
{(Is not in check by the White King because of the occupation of e1, nor by the Queen because of d1 occupied,
nor by the Bishop because of c1 occupied.)}
9.Rb2-b1 + Sc7-a8 {Quadruple pinning stalemate. And c3 is controlled by Pb5, e2 & d3 by Bc2. QBe3 prevents ...Ke3.}
4 - 2# annan
Gockel, H.2012
white Bf3b8 Ka8 Qc8 Pf5d2c2 Se1a4 Rd1a3
black Ph3g5c3d5b7b6 Sh1g8 Bh4 Ke3 Rd7
#2 annan(11+11)
{
Thematic try : } 1.Qc8*c3 ? {("becoming" a pawn and threatening} 2.Qc3-c4 # {).} 1...d5-d4 2.Qc3*d4 # {(Queen has played as a pawn, then became a Queen again, protected by the "Rook" d2 !)} 1...Sh1-f2 2.Rd1-c1 # {(d2 pawn has become a pawn again, protected by the c2 pawn which has become a Rook)} 1...h3-f1=Q {or} 1...h3-f1=B {(pawn has played as a Bishop)} 2.Sa4-g4 # {But } 1...Rd7-d6 ! 2.Qc3-c4 + d5-d3 ! {} 1.Qc8-c4 ! {(threatens} 2.Qc4-d4 # {)} 1...d5-d4 2.Qc4-e6 # {} 1...d5*c4 2.Sa4*c4 # 1...Rd7-d6 2.Qc4-e4 # {(} 2.Qc4-d4 + ? d5*d4 {)} 1...Bh4*e1 2.Qc4-e2 # {(without the Queen becoming a Knight !). All variations (except one) are characteristic of Annan.}
Thematic try : } 1.Qc8*c3 ? {("becoming" a pawn and threatening} 2.Qc3-c4 # {).} 1...d5-d4 2.Qc3*d4 # {(Queen has played as a pawn, then became a Queen again, protected by the "Rook" d2 !)} 1...Sh1-f2 2.Rd1-c1 # {(d2 pawn has become a pawn again, protected by the c2 pawn which has become a Rook)} 1...h3-f1=Q {or} 1...h3-f1=B {(pawn has played as a Bishop)} 2.Sa4-g4 # {But } 1...Rd7-d6 ! 2.Qc3-c4 + d5-d3 ! {} 1.Qc8-c4 ! {(threatens} 2.Qc4-d4 # {)} 1...d5-d4 2.Qc4-e6 # {} 1...d5*c4 2.Sa4*c4 # 1...Rd7-d6 2.Qc4-e4 # {(} 2.Qc4-d4 + ? d5*d4 {)} 1...Bh4*e1 2.Qc4-e2 # {(without the Queen becoming a Knight !). All variations (except one) are characteristic of Annan.}
5 - PG 6 Make & Take
Make&Take the pieces move normally, but a capture takes place in 2 steps:. - A preliminary movement with the march of the piece to be taken. - The capture with the normal movement of the capturing piece"Bonavoglia, M.2019
white Qf1 Pf2e4d2c2b3a2 Sg1b1 Ra1h2 Ke1
black Bf8 Kd8 Qc1 Ph7f7a7b5e7d7 Sg8c8 Rh8a8
PJ 6 Make&Take(16+14)
white Bc1f1 Ke1 Qd1 Pa2b2c2d2e2f2g2h2 Sb1g1 Ra1h1
black Bc8f8 Ke8 Qd8 Pa7b7c7d7e7f7g7h7 Sb8g8 Ra8h8
{
} 1.b2-b3 b7-b5 2.g2*c8=R {(via b7 as a Bishop movement)} c7-c6 3.h2*d8=S {(via c7 as a Queen movement)} Ke8*d8 {(via c7 as a preliminary movement of Knight. Note that any other figure than the Rook in c8 would give check to Rd8 via b7 or c7)} 4.Rh1-h2 c6*f1=B {(via g2 comme un mouvement préalable de Fou)} 5.e2-e4 Sb8*c8 {(via b6 as a Rook)} 6.Qd1*f1 {(via e2)} g7*c1=Q {(via b2 as a Bishop)AUW bicolore & Schnoebelen.}
} 1.b2-b3 b7-b5 2.g2*c8=R {(via b7 as a Bishop movement)} c7-c6 3.h2*d8=S {(via c7 as a Queen movement)} Ke8*d8 {(via c7 as a preliminary movement of Knight. Note that any other figure than the Rook in c8 would give check to Rd8 via b7 or c7)} 4.Rh1-h2 c6*f1=B {(via g2 comme un mouvement préalable de Fou)} 5.e2-e4 Sb8*c8 {(via b6 as a Rook)} 6.Qd1*f1 {(via e2)} g7*c1=Q {(via b2 as a Bishop)AUW bicolore & Schnoebelen.}
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