MESON Chess Problem Database

Problem Display
PID: 258124 (4R2n/2pKP3/4P2N/4k2N/p3Pb1r/Q1Pn1P2/B7/2r5 w - - 0 1)

Labai, Zoltan

4th Prize, Hlas l'udu, 1974

4R2n/2pKP3/4P2N/4k2N/p3Pb1r/Q1Pn1P2/B7/2r5

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc3
      • 2.Qxc3#
    • 1...Rh1
      • 2.Sg4#
    • 1...Rh2
      • 2.Sg4#
    • 1...Rh3
      • 2.Sg4#
    • 1...Rg4
      • 2.Sxg4#
    • 1...Rxh5
      • 2.Sg4#
    • 1...Se1
      • 2.Qc5#
    • 1...Sb2
      • 2.Qc5#
    • 1...Sf2
      • 2.Qc5#
    • 1...Sc5+
      • 2.Qxc5#
    • 1...Sg6
      • 2.Sf7#
    • 1...Sf7
      • 2.Sxf7#
    • 1...c6
      • 2.Qd6#
  • Tries
    • 1.Kxc7?
      • threat
        • 2.Qd6#
      • 1...Rxc3+
        • 2.Qxc3#
      • 1...Rxh5
        • 2.Sg4#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sf7
        • 2.Sxf7#
      • 1...Sb4!
    • 1.Rxh8?
      • threat
        • 2.Sf7#
      • 1...Sc5+
        • 2.Qxc5#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxh5
        • 2.Sg4#
      • 1...Bxh6!
  • Keys
    • 1.Rf8!
      • threat
        • 2.Rf5#
      • 1...Sc5+
        • 2.Qxc5#
      • 1...Rxc3
        • 2.Qxc3#
      • 1...Rxh5
        • 2.Sg4#
      • 1...Sf7
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 9
  • Sets
    • R(a);OGATE,XP(C)::QAB(B),XR(a)
    • R(e);N_GUARD::S(H)
    • R(e);N_GUARD::S(H),XR(e)
    • R(e);N_GUARD,XS(F)::S(H)
    • S(b);N_GUARD::QAR2(B)
    • S(b);CHECK,N_GUARD::QAR2(B),XS(b)
    • S(h);N_GUARD::S(H)
    • S(h);N_GUARD::S(H),XS(h)
    • P(g);N_GUARD::QAB1(B)
  • Tries
    • Try
      • K(I);P-FLIGHT,P_SPINP(C),XP(g)
      • Threat
        • QAB1(B)
      • Vars
        • R(a);CHECK,OGATE,XP(C)::QAB(B),XR(a)
        • R(e);N_GUARD,XS(F)::S(H)
        • S(b);N_GUARD,N_PINP(C)::QAR2(B),XS(b)
        • S(h);N_GUARD::S(H),XS(h)
      • Refutation
        • S(b);
    • Try
      • R(K);XS(h)
      • Threat
        • S(H)
      • Vars
        • S(b);CHECK,N_GUARD::QAR2(B),XS(b)
        • R(a);OGATE,XP(C)::QAB(B),XR(a)
        • R(e);N_GUARD,XS(F)::S(H)
      • Refutation
        • B(d);XS(H)
  • Actual
    • R(K);
    • Threat
      • R1(K)
    • Vars
      • S(b);CHECK,N_GUARD::QAR2(B),XS(b)
      • R(a);OGATE,XP(C)::QAB(B),XR(a)
      • R(e);N_GUARD,XS(F)::S(H)
      • S(h);N_GUARD::S(H),XS(h)
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).