MESON Chess Problem Database

Problem Display
PID: 18549 (6B1/3r1N2/4n1n1/R1p1b3/R2NkpK1/4P3/1QPP4/8 w - - 0 1)

Radivojevic, Zoran

Sahovski Glasnik, 1956

6B1/3r1N2/4n1n1/R1p1b3/R2NkpK1/4P3/1QPP4/8

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qb7#
    • 1...Rb7
      • 2.Qxb7#
    • 1...Sxd4
      • 2.Sg5#
    • 1...Sg5
      • 2.Sxg5#
    • 1...Sc7
      • 2.Sg5#
    • 1...Sg7
      • 2.Sg5#
    • 1...Sd8
      • 2.Sg5#
    • 1...Sef8
      • 2.Sg5#
  • Tries
    • 1.d3+?
      • 1...Kd5
        • 2.Qa2#
        • 2.Qb3#
        • 2.c4#
        • 2.e4#
      • 1...Kxe3!
  • Keys
    • 1.Qb1!
      • threat
        • 2.c4#
      • 1...Kd5
        • 2.c4#
      • 1...Rxd4
        • 2.Qb7#
      • 1...Sxd4
        • 2.Sg5#
      • 1...fxe3
        • 2.Qh1#
      • 1...cxd4
        • 2.c3#
      • 1...Rb7
        • 2.Qxb7#
      • 1...c4
        • 2.c3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • R(g);N_GUARD,P_SPINR(g),XS(F)::QAB(A)
    • R(g);N_GUARD::QAB(A),XR(g)
    • S(e);N_GUARD,P_SPINS(e),XS(F)::S(I)
    • S(e);N_GUARD::S(I),XS(e)
    • S(e);N_GUARD::S(I)
  • Tries
    • Try
      • P(C);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(D)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+P(B)
    • Vars
      • K(a);P_SPINP(c),S_FLIGHT::P(B)
      • R(g);N_GUARD,P_SPINR(g),XS(F)::QAB(A)
      • S(e);N_GUARD,P_SPINS(e),XS(F)::S(I)
      • P(b);N_GUARD,XP(D)::QAB(A)
      • P(c);P_SPINP(c),XS(F)::QAB(A)+P(B)
      • R(g);N_GUARD::QAB(A),XR(g)
      • P(c);::QAB(A)+P(B)
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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).