MESON Chess Problem Database

Problem Display
PID: 124355 (1qR5/1nrn4/2Np3r/3k4/B7/2Kp1N2/8/4Q1B1 w - - 0 1)

Mussuri, Petr Stepanovich

Bulletin de la FFE, 1934

1qR5/1nrn4/2Np3r/3k4/B7/2Kp1N2/8/4Q1B1

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6+
      • 2.Bxc6#
    • 1...Sbc5
      • 2.Se7#
    • 1...Sdc5
      • 2.Sb4#
  • Keys
    • 1.Sg5!
      • threat
        • 2.Qe4#
      • 1...Rxc6+
        • 2.Bxc6#
      • 1...Rh4
        • 2.Qe6#
      • 1...Re6
        • 2.Qxe6#
      • 1...Sbc5
        • 2.Se7#
      • 1...Sdc5
        • 2.Sb4#
      • 1...Sf6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(f);CHECK,OGATE,XS(F)::B(E),XR(f)
    • S(e);N_PINS(F)::S(F)
    • S(g);N_PINS(F)::S(F)
  • Actual
    • S(D);
    • Threat
      • QAB1(A)
    • Vars
      • R(f);CHECK,OGATE,XS(F)::B(E),XR(f)
      • R(d);N_GUARD::QAB1(A)
      • R(d);N_GUARD::QAB1(A),XR(d)
      • S(e);N_PINS(F)::S(F)
      • S(g);N_PINS(F)::S(F)
      • S(g);S_CUTR(d)::QAB1(A)
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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).