MESON Chess Problem Database

Problem Display
PID: 663 (8/1K6/1R3Ppp/1p4k1/3nQ2b/1pB1P2n/2rp2br/3B2R1 w - - 0 1)

Guidelli, Giorgio

1st Prize, British Chess Magazine, 1922

8/1K6/1R3Ppp/1p4k1/3nQ2b/1pB1P2n/2rp2br/3B2R1

#2

8 + 12

14744 Nuova Antologia dei Problemisti Italiani 1992
102 Probleemblad 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Sf4
      • 2.exf4#
    • 1...Se2
      • 2.Rxb5#
    • 1...Sc6
      • 2.Qg4#
    • 1...Se6
      • 2.Qd5#
  • Tries
    • 1.Rxg2+?
      • 1...Bg3
        • 2.Rxg3#
        • 2.Qg4#
      • 1...Rxg2!
  • Keys
    • 1.f7!
      • threat
        • 2.Rxg6#
      • 1...Se2
        • 2.Rxb5#
      • 1...Sf3
        • 2.Qxg6#
      • 1...Sf5
        • 2.Bf6#
      • 1...Sf4
        • 2.exf4#
      • 1...Sc6
        • 2.Qg4#
      • 1...Se6
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);OGATE::P(D),XS(f)
    • S(g);N_GUARD::R(F),XP(i)
    • S(g);N_PINQ(E)::QAR1(E)
    • S(g);N_GUARD::QAR(E)
  • Tries
    • Try
      • R(B);CHECK,N_SPINQ(E),XB(c)
      • Refutation
        • R(d);XR(B)
  • Actual
    • P(G);
    • Threat
      • R1(F),XP(k)
    • Vars
      • S(g);N_GUARD::R(F),XP(i)
      • S(g);N_PINQ(E)::QAR1(E),XP(k)
      • S(g);OGATE::B(C)
      • S(f);OGATE::P(D),XS(f)
      • S(g);N_PINQ(E)::QAR1(E)
      • S(g);N_GUARD::QAR(E)
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).