MESON Chess Problem Database

Problem Display
PID: 261879 (n2N4/3Q3n/1r1p1r2/1RpppR2/3k4/1P3P2/3K4/8 w - - 0 1)

Pirrone, Santi

Europe Echecs, 1962

n2N4/3Q3n/1r1p1r2/1RpppR2/3k4/1P3P2/3K4/8

#2

7 + 9

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb5
      • 2.Sc6#
    • 1...Rc6
      • 2.Sxc6#
    • 1...Rb7
      • 2.Sc6#
    • 1...Rb8
      • 2.Sc6#
    • 1...Rxf5
      • 2.Se6#
    • 1...Re6
      • 2.Sxe6#
    • 1...Rf7
      • 2.Se6#
    • 1...Rf8
      • 2.Se6#
  • Tries
    • 1.Qg7?
      • threat
        • 2.Qg1#
      • 1...Rg6
        • 2.Rf4#
      • 1...e4
        • 2.Se6#
      • 1...Sg5!
  • Keys
    • 1.Qa7!
      • threat
        • 2.Qa1#
      • 1...Ra6
        • 2.Rb4#
      • 1...c4
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(e);N_GUARD,XR(D)::S(G)
    • R(e);N_GUARD::S(G),XR(e)
    • R(e);N_GUARD::S(G)
    • R(g);N_GUARD,XR(E)::S(G)
    • R(g);N_GUARD::S(G),XR(g)
    • R(g);N_GUARD::S(G)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB(F)
      • Vars
        • R(g);N_GUARD,P_SPINP(d)::R(E)
        • P(d);P_SPINR(g)::S(G)
      • Refutation
        • S(h);
  • Actual
    • Q(F);
    • Threat
      • QAB(F)
    • Vars
      • R(e);N_GUARD,P_SPINP(b)::R(D)
      • P(b);P_SPINR(e)::S(G)
HTML5 logo

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).