py_20200128
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# Anda
Petkov, P.2019
white Pc4g3 Sa3c2 Be1g6 Kb6 Rf5
black Pe2g4 Kd3 Re4
#2 Anda(8+4)
{Try :}
1.Kb6-c5 ? Re4-e6 ! {}
1.Kb6-c6 ! {}
1...Re4-e6=n + 2.nRe6-e3=w # {}
1...Re4*c4=n + 2.nRc4-d4=w # {}
1...Re4-d4 2.Rf5-d5 # {: the Bishop does not become neutral because his check is indirect}
1...Re4-e3 2.Rf5-f3 # {}
1...Re4-f4 2.Rf5*f4 # {}
1...Re4-e8 2.Rf5-e5 # {(} 2.Rf5-d5=n + ? nRd5-f5=b ! {}
2.Rf5-f3=n + nRf3-f5=b {)}
1...Re4-e5 2.Rf5*e5 #
2 - hs#4,5 reverse anda
Petkov, P.2019
neutral Pb6
black Pd2g2 Kh1
white Pb7 Kc8
hs#4.5 reverse Anda(2+1+3)
{}
1...Kh1-h2 2.Kc8-b8 d2-d1=nR { : the Rook does not give check and therefore becomes neutral.}
3.Kb8-a8 nRd1-g1=b {Becomes a Black Rook.} 4.b7-b8=Q + {Remains a White Queen because of check.} 4...Kh2-h1 5.b6-b7=w
{Become a white pawn.} Rg1-a1 # {Other Rook moves are illegal, because the Rook that has become neutral would check the Black King.
(and there} 6.Qb8-a7=n {? is illegal because becoming a neutral Queen.
Please note that on } 4.b7-b8=R ? Kh2-h1 5.b6-b7=w {is prevented by } Kh1-h2 !
3 - 2# bicolores
Schiegl, H.1970
white Qc5 Kg6
black Pb3b2f4 Ra4 Ba6 Kb1
#2 bicolores(2+6)
{Tries :}
1.Kg6-f6 ? {(threatening} 2.Qc5-c2 # {)} 1...Ra4-c4 2.Qc5-g1 # {but} 1...Ba6-c4 ! {(} 2.Qc5-f5 + {is illegal)}
1.Kg6-g7 ? {(threatening} 2.Qc5-c2 # {)} 1...Ba6-c4 2.Qc5-f5 # {but} 1...Ra4-c4 ! {(} 2.Qc5-g1 + {is illegal}}
1.Qc5-c2 + ? {illegal} 1.Qc5-c3 ? {(threatening} 2.Qc3-e1 # {)} {but} 1...Ba6-e2 !
1.Qc5-f2 ? {(threatening} 2.Qf2-e1 # {)} {but} 1...Ba6-e2 !
1.Qc5-c1+ ? b2*c1=B ! {or} 1...b2*c1=S !
{}
1.Kg6-h6 ! {(threatening} 2.Qc5-c2 # {)}
1...f4-f3 2.Qc5-c2 # {(as well } 2...Kb1*c2 {than} 2...b3*c2 {and} 2...Kb1-a2 {are illegal)}
1...Ba6-c4 2.Qc5-f5 # {}
1...Ra4-c4 2.Qc5-g1 #
4 - h#3 2 solutions madrasi
Shankar Ram, N.2000
white Ph2g2e2 Rc4 Bd6 Kh3
black Bc8f8 Kf4 Qd5 Ph4h5g5 Sf5e3 Rc1a3
h#3 madrasi(6+11)2 solutions
{}
1.Qd5-e4 g2-g3 2.Se3-c2 Rc4*c8 3.Sf5-e3 {display-departure-file} Rc8*f8 # {}
1.Qd5-e5 g2-g4 2.Sf5-e7 Bd6*a3 3.Se3-f5 {display-departure-rank} Ba3*c1 #
5 - h#2 2 solutions kobul Kings
Bushan, Ph2019
white Rh6 Kd4 Bg4
black Pa5g5 Kb8 Bc4 Re3
h#2 2sol. kobul(3+5)
{
} 1.Re3-e6 Kd4*c4[b8=rB] 2.rBb8-e5 Rh6*e6[e5=rR] # {} 1.Bc4-e6 Kd4*e3[b8=rR] 2.rRb8-g8 Bg4*e6[g8=rB] #
} 1.Re3-e6 Kd4*c4[b8=rB] 2.rBb8-e5 Rh6*e6[e5=rR] # {} 1.Bc4-e6 Kd4*e3[b8=rR] 2.rRb8-g8 Bg4*e6[g8=rB] #
6 - h=2 2 solutions with locusts and roses
Smits, G.2015
white Ka7 WRf8 WLh1
black Qe1 Kd2 BRd1 BLf5
h=2 2sol.(3+4)
f8, d1: Rose🨊h1, 🨐f5: Locusts
{}
1.BRd1-e3 WRf8-a6 2.Qe1-d1 WLh1*d1-c1 {=}
1.Kd2-c2 WRf8-h3 2.Qe1-c3 WLh1*d1-c1 {=It should be noted that apparently there are other solutions such as :}
1.BRd1-c3 WRf8-b4 2.Qe1-f1 WLh1*f1-e1 {but it's not pat ...because of the "null" move 3.ROc3-c3 via b5, c7, e8, g7, h5, g3 and e2 !!}
7 - #4 single combat & circé
Rittirsch, M.1990
white Pd7e6g4a2b3b4b5c4 Sg5a3 Bf7g3 Kh2 Rf3
black Pb7c7e7g7g6 Kh8 Bd8
#4 single combat circe(14+7)
{}
1.b5-b6 ! {}
1...c7*b6[+wPb2] {(pb2 being blocked, an other unit can play.)}
2.Bf7*g6
2...b6-b5
3.Bg6-b1 zugzwang.
3...b5*c4[+wPc2]
4.Rf3-f8 # {(Bb1 being blocked, an other unit can play.)}
1...c7-c5
2.Rf3-f1 zugzwang.
2...c5*b4[+wPb2]
3.Rf1-h1 zugzwang.
3...b4*a3[+wSg1]
4.Kh2-g2 # {(Rh1 being blocked, an other unit can play)}
1...c7-c6
2.Bg3-e5 zugzwang.
2...c6-c5
3.Be5-a1 zugzwang.
3...c5*b4[+wPb2]
4.Rf3-h3 # { (Ba1 being blocked, an other unit can play)}
8 - h#4 2 solutions leffie
Crisan, V.2019
white Kf1 Bb1
black Pd3f3 Ke4
h#4 2sol. leffie(2+3)
{}
1.f3-f2 Bb1-a2 2.d3-d2 Kf1-e2
3.f2-f1=R Ba2-b1 + 4.Rf1-f5 {avoids check because Be4 would paralyse Rf5} Ke2-e3 # {:
BK is "pinned".}
1.Ke4-e3 Kf1-g1 2.d3-d2 Bb1-e4 3.Ke3-e2 Be4*f3 + 4.d2-d1=R {(Be2 would paralyse Rd1)} Kg1-f2 #
Add a comment