py_20200218
Click in the right part of the chessboard to move forward, left to move backward... or directly on the move in the solution
1 - h#4,5 bicolores
Caillaud, M.2009
white Ph2b4 Kb5 Bg8
black Ph3 Kg4 Rc3
h#4.5 bicolores(4+3)
{}
1...Bg8-a2 2.Rc3-b3 Kb5-c4 3.Rb3-f3 + Kc4-d4 4.Rf3-f8 Ba2-f7 {}
5.Kg4-f3 Bf7-h5 #
{White bishop-Black Rook battery then black Rook-white Bishop battery !}
2 - 2# masand
Gockel, H.2019
white Bc8a1 Kf7 Qg2 Pf5b4 Sg5h5 Rd8
black Pg6d5a6b5b3e2 Ke5 Ba3c2 Sd4c3
#2 masand(9+11)b) ♛a3
{}
a) {essai }
1.Kf7-e7 ? {threatening}
2.Sg5-f7[d8=b] # {}
1...Sd4-f3
2.Qg2*e2[c2=w][f3=w][b5=w] # {}
1...Sd4*f5 +
2.Qg2-e4[c2=w][e2=w][b4=b][d5=w][f5=w] # {}
1...Sd4-e6
2.Rd8*d5[b5=w] # {}
1...Sd4-c6[b4=b][d8=b] +
2.Qg2*d5[b3=w][b5=w][c6=w][d8=w] # {}
1...g6*h5
2.Qg2-h2[e2=w][h5=w] # {}
but
1...Ba3*b4[c3=w] + ! {
real play}
1.Kf7-g7 ! {threatening}
2.Sg5-f7[d8=b] # {}
1...Sd4-f3
2.Qg2*e2[c2=w][f3=w][b5=w] # {}
1...Sd4*f5 +
2.Qg2-e4[c2=w][e2=w][b4=b][d5=w][f5=w] # {}
1...Sd4-e6[g5=b][d8=b] +
2.Qg2*d5[b3=w][b5=w][e6=w][d8=w] # {}
1...Sd4-c6
2.Rd8*d5[b5=w] # {}
1...g6*h5
2.Qg2-h2[e2=w][h5=w] #
{}
b) +bQa3 {Qa3try}
1.Kf7-g7 ? {threatening}
2.Sg5-f7[d8=b] # {}
1...Sd4-f3
2.Qg2*e2[c2=w][f3=w][b5=w] # {}
1...Sd4*f5 +
2.Qg2-e4[c2=w][e2=w][b4=b][d5=w][f5=w] # {}
1...Sd4-e6[g5=b][d8=b] +
2.Qg2*d5[b3=w][b5=w][e6=w][d8=w] # {}
1...Sd4-c6
2.Rd8*d5[b5=w] # {}
1...g6*h5
2.Qg2-h2[e2=w][h5=w] # {}
but
1...Qa3*b4 ! 2.Sg5-f7[d8=b] + Qb4-f8[f7=b][d8=w] +
{real play}
1.Kf7-e7 ! threat:
2.Sg5-f7[d8=b] #
1...Qa3*b4[b3=w][c3=w][d4=w][b5=w] +
2.Sd4-c6[b4=w][d8=b] # {}
1...Sd4-f3
2.Qg2*e2[c2=w][f3=w][b5=w] # {}
1...Sd4*f5 +
2.Qg2-e4[c2=w][e2=w][b4=b][d5=w][f5=w] # {}
1...Sd4-e6
2.Rd8*d5[b5=w] # {}
1...Sd4-c6[b4=b][d8=b] +
2.Qg2*d5[b3=w][b5=w][c6=w][d8=w] # {}
1...g6*h5
2.Qg2-h2[e2=w][h5=w] #
{Exchanged mats
between trial & real play (between the 2 twins).}
3 - hs==5 köko with royal lions & archiBishops
Novomesky, D.2013
white WAa1
white Royal WLb1
black BAe7
black Royal BLc7
hs==5(2+2)🨴b1, 🨺c7: Royal Lion🨡a1, 🨧e7: Archibishop
b) 🨴b1-->g4c) 🨴b1-->c8
{}
{}
a) {}
1.WAa1-b2 BAe7-d6 2.WAb2-e7+ {(via c1-h6-f8)} rBLc7-f7 3.WAe7-c7 rBLf7-b7 4.WAc7-c5 {(via b8-a7)} BAd6-b4 {(via f8-h6-c1-a3)} 5.WAc5-b6
BAb4-b2 {(the other moves of the AR are self-checks) ==. Double stalemate: the 2
Archbishops are pinned and each move by Lion would check him by his
colleague. Except a "null" move like Bb6-b6 (via d8-h4-e1-a5)}
b) wrLIb1-->g4 {royal Lion b1 to g4}
1.rWLc8-c6 rBLc7-c5 2.WAa1-f6 {(via a3-c1 or f8-h6)} 2.WAf6-b6 {(via h4-e1-a5)}
BAf4-g3 3.WAb6-f2 BAg3-g5 4.rWLg4-g6 BAg5-f6 5.rWLg6-b6 + {(the Arf2 targeting Lrc7 via g1-h2 is now
checking in köko)} BAf6-g3 {== : both Lrd8, Lrg1 and ...Lra5, Lrh2
are forbidden by the Ar, which are pinned}
c) wrLIb1-->c8 {royal Lion b1 to c8}
1.rWLc8-c6 rBLc7-c5 2.WAa1-f6 {(would have checked on the 1st move because of
the rLc8)} BAe7-g5 3.rWLc6-h6 BAg5-b4 4.WAf6-d4 + rBLc5-e3 5.WAd4-f4 +
{(via a7-b8, checking by the rL, but not by the Ar in köko)} BAb4-g5 {(via e1-h4) ==. Ar are pinned,
Lr's are frozen. No echo: instead, the three double pats are
varied.}
4 - 2# Shrinking Men
Bissicks, P.2019
white Qb7 Pd6 Kg7
black Pd7e6 Ke8 Ra8
#2 Shrinking men(3+4)
{Essais :}
1.Qb7*a8 ? {don't check}
1.Qb7-f3 ? {(5,66 long) O-O-O ! (legal because Queen can come from a promotion on b8, then Qb1, of length 7 and Qb7 of length 6)}
1...Ke8-d8 ? 2.Qf3-f8 # {(5 long)} 2.Qf3*a8 # {is illegal}
1.Qb7-h1 ! {(8,48 long)}
1...Ke8-d8 {(1... O-O-O illegal)} 2.Qh1-h8 # {Before playing Qb7-h1, White Queen could only have played moves of greater or equal length.So it could not have come from d1 (nor from a promotion to b8, c8 etc.) but comes from a promotion to a8 (to Qa8-h1 and then Qh1-b7),which broke castling.}
5 - 2# anti-circe with Grasshoppers
Stojnic, D.2010
white Ph7f3f2e2c2a3 Se6f6 Be8e5 Ka4 Rg2
black Pg7g6h4f4c3a5 Kc4 Sa1 Gh2f7
#2 (12+10)🨥h2, f7: Grasshoppers
{
} 1.Ka4-b5 + ? Gh2*e5[bGe5->e1] ! {occupying the rebirth square of the white King.} 1.Be8-b5 + ? Gh2*f2[bGf2->f1] ! {occupying the white Bishop's rebirth square.} 1.Rg2-g4 ? {(threatens} 2.Be8-b5 # {, but not} 2.Be5*f4[wBf4->c1] + ? Gf7*h7[bGh7->h1] ! {, nor} 2.Ka4-b5 + ? Gh2*e2[bGe2->e1] ! {) Grasshoppers parry the threat by threatening 2...Gxf3-f1!)} 1...Gh2-h5 {display-departure-rank}? 2.Ka4-b5 # {} 1...Gf7-h5 ? {display-departure-rank} 2.Be5*f4[wBf4->c1] # {. But} 1...Gf7-f5 ! 2.Be8-b5 + Gf5*f3[bGf3->f1] ! {} 1.Be5-b8 ? {(or elsewhere)} Gf7-h5 ! {display-departure-rank} {} 1.Be5*f4[wBf4->c1] ! {(menace} 2.Ka4-b5 # {)} 1...Sa1*c2[bSc2->g8] 2.Ka4-b3 # {Grasshoppers parry the threat by threatening 2...Gxe2-e1!} 1...Gh2-h5 {display-departure-rank} 2.Be8-b5 # {} 1...Gf7-h5 {display-departure-rank} 2.Rg2-g4 # { Cycle ABCD-DCBA.}
} 1.Ka4-b5 + ? Gh2*e5[bGe5->e1] ! {occupying the rebirth square of the white King.} 1.Be8-b5 + ? Gh2*f2[bGf2->f1] ! {occupying the white Bishop's rebirth square.} 1.Rg2-g4 ? {(threatens} 2.Be8-b5 # {, but not} 2.Be5*f4[wBf4->c1] + ? Gf7*h7[bGh7->h1] ! {, nor} 2.Ka4-b5 + ? Gh2*e2[bGe2->e1] ! {) Grasshoppers parry the threat by threatening 2...Gxf3-f1!)} 1...Gh2-h5 {display-departure-rank}? 2.Ka4-b5 # {} 1...Gf7-h5 ? {display-departure-rank} 2.Be5*f4[wBf4->c1] # {. But} 1...Gf7-f5 ! 2.Be8-b5 + Gf5*f3[bGf3->f1] ! {} 1.Be5-b8 ? {(or elsewhere)} Gf7-h5 ! {display-departure-rank} {} 1.Be5*f4[wBf4->c1] ! {(menace} 2.Ka4-b5 # {)} 1...Sa1*c2[bSc2->g8] 2.Ka4-b3 # {Grasshoppers parry the threat by threatening 2...Gxe2-e1!} 1...Gh2-h5 {display-departure-rank} 2.Be8-b5 # {} 1...Gf7-h5 {display-departure-rank} 2.Rg2-g4 # { Cycle ABCD-DCBA.}
6 - h#3 2 sol parrain circe with neutral pieces
Golha, J.2010
neutral Sb3 Bc2c1
black Kc3 Rb2
white Kf3
h#3 2sol.(1+2+3)
{}
1.nBc1-e3 Kf3*e3 2.nSb3-c1[+nBf1] nSc1-a2 + 3.Kc3*c2 nBf1-d3[+nBa4] # {}
1.nSb3-d2 + nBc1*d2 + 2.Kc3*c2[+nSd1] nSd1*b2[+nBa3] 3.Kc2*d2[+bRc2] nBa3-b4[+nBe3] #
{Chameleon echo.}
7 - 7# lost pieces
Werner, D.2017
white Sc4e1 Rg2g4 Kh1
black Kf5 Pa6e3e4e6f6h4 Ra3e5 Ba8b8 Sd2
#7 lost pieces(5+12)
{}
1.Sc4-d6 + ? Bb8*d6 {}
1.Rg4-g8 ! {(Menace} 2.Rg8-f8[-f6] # {.)}
1...Bb8-d6 ? 2.Sc4*d6[-e4] + Kf5-f4 3.Rg8-g4 # {display-departure-rank} {}
1...Kf5-f4 2.Rg2-g4 +{display-departure-rank} Kf4-f5 3.Rg4-g7[-b8]{display-departure-rank}
{(Threatens} 4.Rg7-f7[-f6] # {ou} 4.Rg8-f8[-f6] # {.)} 3...Kf5-f4 4.Rg7-g4 + Kf4-f5 5.Rg4-g2 {!!
(Threatens} 6.Sc4-d6[-e4] + {et} 7.Rg8-g4 #{display-departure-rank} {
(5.Nd6+ (remove Pe4) is a self-check)}
5...Kf5-f4 6.Rg8-g4 +{display-departure-rank} Kf4-f5 7.Sc4-d6[-e4] #
8 - PG 6,5 lost pieces
Bonavoglia, M.2017
white Bf1c1 Ke1 Qd1 Pa2b2c2e2g2 Sg1b1 Rh1a1
black Bf8c8 Ke8 Qd8 Pa7b7c7e7g7h7 Sg8b8 Rh8a8
PG 6,5 lost pieces(13+14)
white Bc1f1 Ke1 Qd1 Pa2b2c2d2e2f2g2h2 Sb1g1 Ra1h1
black Bc8f8 Ke8 Qd8 Pa7b7c7d7e7f7g7h7 Sb8g8 Ra8h8
{
} 1.h2-h4 Sg8-f6 2.Rh1-h3 Sf6-e4 3.Rh3-f3 f7-f5[-f2] 4.Rf3-d3 {(You don't remove the d7-pawn because Black can evade the attack by 4...Nd6)} f5-f4[-d2] 5.h4-h5 {(The f4-pawn is not removed because Black can evade the Bc1 attack by} 5...Se4-d2 {.)} 5...Se4-f6[-h5] 6.Rd3-h3[-f4] {(The d7-pawn (attacked by Qd1) is not suppressed because Black can evade the attack by} 6...Sf6-d5 {. But Pf4 is removed.)} 6...Sf6-g8 7.Rh3-h1[-d7] ! {Diagram = initial position without d2, f2, h2, d7 & f7.}
} 1.h2-h4 Sg8-f6 2.Rh1-h3 Sf6-e4 3.Rh3-f3 f7-f5[-f2] 4.Rf3-d3 {(You don't remove the d7-pawn because Black can evade the attack by 4...Nd6)} f5-f4[-d2] 5.h4-h5 {(The f4-pawn is not removed because Black can evade the Bc1 attack by} 5...Se4-d2 {.)} 5...Se4-f6[-h5] 6.Rd3-h3[-f4] {(The d7-pawn (attacked by Qd1) is not suppressed because Black can evade the attack by} 6...Sf6-d5 {. But Pf4 is removed.)} 6...Sf6-g8 7.Rh3-h1[-d7] ! {Diagram = initial position without d2, f2, h2, d7 & f7.}
9 - #3 lost pieces
Maeder, Th & Sick O2017
white Pf5d3 Ka6 Rg6d5 Be8
black Pa7e5 Kh8 Bc1
#3 lost pieces(6+4)
{Why was Pa7 not removed just before arriving at the diagram?
The only possibility is that the last white move was Ka6 with a PNb7! The
Pa7 does not disappear because Black can evade the attack by ...
bxa6. But Pb7 disappears! Moreover, the only way that Pe5 can only have
not disappeared is that it was not already in e5. And he cannot come
that of e7, because in e6, Rg6 would have been intercepted and thus Pb7 could have been intercepted
to protect from attack. The "prise en passant" is therefore justified.}
1.f5-f6[-e5][-a7] ? Bc1-g5 ! 2.Rd5*g5 {display-departure-file} Kh8-h7[-g6] {}
1.f5*e6 ep.[-a7] ! Bc1-g5 2.Rd5*g5 Kh8-h7
{g6 Rook does not disappear because it has the leak in f6.)} 3.Rg5-h5 #
10 - series #10 anti-patrol (ou lortap)
Sobrecases, G.2008
white Sa2 Kb3
black Qf6 Pa3c5d6e7g6f5e4d3 Kb1 Bf8h7
ser-#10 lortap(2+12)
{}
1.Sa2-c1 2.Sc1*d3 3.Sd3*c5 4.Sc5*e4 {}
5.Se4*d6 6.Sd6*f5 7.Sf5*e7 8.Se7*g6 {}
9.Sg6-e5 10.Kb3-b2 #
{
11 - #3 circe
Petkov, P.1975
white Qd8 Pc6e7a4d4d2e2 Kd1 Ra5 Bg1f3
black Qg8 Pb4b3g6 Rb7 Ba7e8 Kc4
#3 Circé(11+8)
{}
1.Ra5-c5 + ? Ba7*c5[+wRa1] ! 2.Ra1-c1+ Be8*c6[+wPc2] ! {}
1.Bf3-d5 + ? Qg8*d5[+wBf1] ! 2.e2-e3 + Rb7*e7[+wPe2] !
{( playing 2 e4+ instead of e3 doesn't change anything :} 2.e2-e4 + Rb7*e7[+wPe2] 3.e2-e3 + Re7*e4[+wPe2] ! {)}
1.Qd8-d7 ? b3-b2 ! {}
1.Kd1-e1 ! {(threatening} 2.Qd8-d5 + Qg8*d5[+wQd1] 3.Qd1*b3 # {)}
1...Rb7-d7
2.Ra5-c5 +
2...Ba7*c5[+wRa1]
3.Ra1-c1 # {}
1...Be8-d7
2.Bf3-d5 +
2...Qg8*d5[+wBf1]
3.e2-e3 #
{(et non } 3.e2-e4+ ? Qd5*e4 [+wPe2] {)
Grimshaw Theme.}
12 - h#2 2 sol rose & locuste
Boyer, JP.1986
white Ka6 ROe6 Lf1
black Ke4 Bh5
h#2 2sol.(3+2)e6: Rose🨊f1: Locust
{}
1.Ke4-e3 ROe6-h3 2.Bh5-e2 + Lf1*e2-d3 # {}
1.Bh5-f3 ROe6-f8 2.Ke4-f5 Lf1*f3-f4 #
{ Chameleon-echo, vertical-horizontal echo.}
13 - h=3,5 circe
Bakcsi, G.2005
white Pe4 Sb5c4d3f5 Kg7
black Sg8 Ra3c3 Kc6
h=3.5 Circe(6+4)
{}
1...Kg7-h8 {To prohibit the rebirth of Rooks in h8.} 2.Kc6*b5[+wSb1] Sb1*c3 +
3.Kb5*c4[+wSb1] Sb1*a3 + 4.Kc4*d3[+wSb1] Kh8*g8 {pat!}
14 - h#2 2 solutions anti-circe couscous madrasi
Tritten, P.2014
white Kc4 Rf5 Sg3f8 Bh5
black Rc7 Kc6 Bb7
h#2 2sol.(2+3)Anti-circe couscousmadrasi
{}
1.Rc7-h7 Rf5-f6 + 2.Rh7*h5-f1 Sg3*f1-a8 {}
1.Bb7-c8 Bh5-f3 + 2.Bc8*f5-h1 Sg3*h1-c8
15 - h#2 2 solutions with kangourou et Andernach Grasshopper
Agostini, V.2014
white Sg2 Kh2 Gb4
black KAh1 Bd2 Kd1 Qg7 Sc2 Re2
h#2 2sol.(3+6)🨺h1: Kangourou🨟b4: Andernach Grasshopper
{}
1.Qg7-d4 Gb4-e4[d4=w] 2.KAh1-d5 Ge4-c6[d5=w] # ! {}
1.Qg7-g4 Gb4-h4[g4=w] 2.KAh1-h5 Gh4-h6[h5=w] # !
16 - #2 patrol
Bouma, G.2012
white Pe6f4g4h5f2e2b2b4 Sg2d2 Bc6 Kc4
black Ke4
#2 patrol(12+1)
{}
1.Kc4-d4 ! { (blocus) }
1...Ke4-d5
2.Kd4-c5 # {}
1...Ke4-f5
2.Kd4-e5 # {}
1...Ke4-f3
2.Kd4-e3 # {}
1...Ke4-d3
2.Kd4-c3 #
{ Star of each King.}
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