MESON Chess Problem Database

Problem Display
PID: 267801 (2RNR3/3K1p2/3P2Q1/Pp1k1p1b/1r1p1r2/1p1p1p2/8/8 w - - 0 1)

Bartolovic, Hrvoje

diagrammes, 1976

2RNR3/3K1p2/3P2Q1/Pp1k1p1b/1r1p1r2/1p1p1p2/8/8

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rg4
      • 2.Qxf5#
    • 1...Rh4
      • 2.Qxf5#
    • 1...Bg4
      • 2.Qxf7#
  • Tries
    • 1.Sc6?
      • threat
        • 2.Sxb4#
      • 1...Kc4
        • 2.Se7#
      • 1...Kc5
        • 2.Se7#
      • 1...Rc4
        • 2.Re5#
      • 1...Ra4!
    • 1.Sxf7?
      • threat
        • 2.Re5#
        • 2.Qe6#
      • 1...Bxg6
        • 2.Re5#
      • 1...Re4!
    • 1.Qxh5?
      • threat
        • 2.Qxf7#
      • 1...f6
        • 2.Qf7#
      • 1...Re4!
  • Keys
    • 1.Se6!
      • threat
        • 2.Sxf4#
      • 1...Ke4
        • 2.Sc7#
      • 1...Ke5
        • 2.Sc7#
      • 1...fxe6
        • 2.Qxe6#
      • 1...Re4
        • 2.Rc5#
      • 1...Rg4
        • 2.Qxf5#
      • 1...Rh4
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(f);N_GUARD::QAR2(C),XP(i)
    • B(j);N_GUARD::QAB(C),XP(k)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F),XR(d)
      • Vars
        • K(h);N_GUARD,S_FLIGHT::R(E)+S(F)
        • K(h);N_GUARD,P-FLIGHT::R(E)+S(F)
        • R(d);SBLOCK::R1(G)
      • Refutation
        • R(d);
    • Try
      • S(F);XP(k)
      • Threat
        • DUALS(2)
      • Vars
        • B(j);XQ(C)::R1(G)
      • Refutation
        • R(f);
    • Try
      • Q(C);P_PINP(i),XB(j)
      • Threat
        • QAB(C),XP(k)
      • Vars
        • P(k);::QAB(C)
      • Refutation
        • R(f);
  • Actual
    • S(F);
    • Threat
      • S(F),XR(f)
    • Vars
      • K(h);N_GUARD,P_SPINP(i),S_FLIGHT::R(G)+S(F)
      • K(h);N_GUARD,P-FLIGHT::R(G)+S(F)
      • P(k);OGATE,XS(F)::QAB1(C),XP(k)
      • R(f);SBLOCK::R1(E)
      • R(f);N_GUARD::QAR2(C),XP(i)
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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).