MESON Chess Problem Database

Problem Display
PID: 30516 (5Q2/2Kpp2b/8/4k2r/R3BN2/2P5/7b/B7 w - - 0 1)

Stocchi, Ottavio

3rd Prize, Belyakin-80 JT, 1949

5Q2/2Kpp2b/8/4k2r/R3BN2/2P5/7b/B7

#2

7 + 6

3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf4
      • 2.Qxe7#
    • 1...Bxe4
      • 2.c4#
    • 1...e6
      • 2.Sd3#
  • Tries
    • 1.Qf7?
      • threat
        • 2.Sd3#
      • 1...Bxf4
        • 2.Qxe7#
      • 1...Bxe4
        • 2.c4#
      • 1...Rh3!
  • Keys
    • 1.Bf5!
      • threat
        • 2.Re4#
      • 1...Rxf5
        • 2.Qxe7#
      • 1...Bxf4
        • 2.c4#
      • 1...Bxf5
        • 2.Qg7#
      • 1...d5
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);SBLOCK,XS(E)::QAR2(G),XP(e)
    • B(f);SBLOCK,XB(D)::B(A)+P(B)
    • P(e);SBLOCK::S(E)
  • Tries
    • Try
      • Q(G);
      • Threat
        • S(E)
      • Vars
        • B(a);SBLOCK,XS(E)::QAR2(G),XP(e)
        • B(f);SBLOCK,XB(D)::B(A)+P(B)
      • Refutation
        • R(c);
  • Actual
    • B(D);
    • Threat
      • R1(C)
    • Vars
      • R(c);SBLOCK,XB(D)::QAR2(G),XP(e)
      • B(a);SBLOCK,XS(E)::B(A)+P(B)
      • B(f);SBLOCK,XB(D)::QAB(G)
      • P(d);SBLOCK::S(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).