MESON Chess Problem Database

Problem Display
PID: 269881 (r1n1B1nr/3P1Pp1/1pN1k3/4Ppq1/pb3pp1/8/7P/1K5Q w - - 0 1)

Chicco, Adriano

Le Probleme, 1937

r1n1B1nr/3P1Pp1/1pN1k3/4Ppq1/pb3pp1/8/7P/1K5Q

#2

8 + 13

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qh6
      • 2.d8S#
    • 1...Qh5
      • 2.d8S#
    • 1...Qg6
      • 2.d8S#
    • 1...Ra5
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Ra6
      • 2.dxc8Q#
      • 2.dxc8B#
    • 1...Rxh2
      • 2.fxg8Q#
      • 2.fxg8B#
    • 1...Rh3
      • 2.fxg8Q#
      • 2.fxg8B#
    • 1...Rh4
      • 2.fxg8Q#
      • 2.fxg8B#
    • 1...Rh5
      • 2.fxg8Q#
      • 2.fxg8B#
    • 1...Rh6
      • 2.fxg8Q#
      • 2.fxg8B#
    • 1...Rh7
      • 2.fxg8Q#
      • 2.fxg8B#
    • 1...Be1
      • 2.f8S#
    • 1...Bd2
      • 2.f8S#
    • 1...Bc3
      • 2.f8S#
    • 1...Ba5
      • 2.f8S#
    • 1...Sd6
      • 2.f8S#
    • 1...Sce7
      • 2.f8S#
    • 1...Sf6
      • 2.d8S#
    • 1...Sge7
      • 2.d8S#
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qa2#
      • 1...Rxh2
        • 2.fxg8Q#
        • 2.fxg8B#
      • 1...Ra5
        • 2.dxc8Q#
        • 2.dxc8B#
      • 1...Rh3
        • 2.fxg8Q#
        • 2.fxg8B#
      • 1...Bd2
        • 2.f8S#
      • 1...Sd6
        • 2.f8S#
      • 1...Sce7
        • 2.f8S#
      • 1...Sf6
        • 2.d8S#
      • 1...Sge7
        • 2.d8S#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(f);N_GUARD::P=S
    • R(j);N_GUARD::PXS(k)=Q
    • R(m);N_GUARD,XP(C)::PXS(l)=Q
    • R(m);N_GUARD::PXS(l)=Q
    • B(b);N_GUARD::P=S
    • S(k);S_CUTB(b)::P=S
    • S(l);S_CUTQ(f)::P=S
  • Actual
    • Q(B);
    • Threat
      • QAB(B)
    • Vars
      • R(m);N_GUARD,XP(C)::PXS(l)=Q
      • R(j);N_GUARD::PXS(k)=Q
      • R(m);N_GUARD::PXS(l)=Q
      • B(b);N_GUARD::P=S
      • S(k);S_CUTB(b)::P=S
      • S(l);S_CUTQ(f)::P=S
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).