MESON Chess Problem Database

Problem Display
PID: 251362 (6q1/4R1pb/4Nk1N/1p1P1PpP/1BPKp3/4p1r1/4P1P1/5Q2 w - - 0 1)

Szoghy, Jozsef

Probleemblad, 1982

6q1/4R1pb/4Nk1N/1p1P1PpP/1BPKp3/4p1r1/4P1P1/5Q2

#2

12 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe6
      • 2.Rxe6#
    • 1...Qf7
      • 2.Rxf7#
    • 1...Qa8
      • 2.Rf7#
    • 1...Qb8
      • 2.Rf7#
    • 1...Qc8
      • 2.Rf7#
    • 1...Qd8
      • 2.Rf7#
    • 1...Qh8
      • 2.Rf7#
    • 1...Rh3
      • 2.Sg4#
    • 1...Rg4
      • 2.Sxg4#
    • 1...Bxf5
      • 2.Sxg8#
      • 2.Qxf5#
    • 1...Bg6
      • 2.Sxg8#
  • Tries
    • 1.Kxe4?
      • threat
        • 2.Qa1#
      • 1...Qxe6+
        • 2.Rxe6#
      • 1...Rg4+
        • 2.Sxg4#
      • 1...Bxf5+
        • 2.Qxf5#
      • 1...Qa8
        • 2.Rf7#
      • 1...Qb8
        • 2.Rf7#
      • 1...bxc4!
    • 1.Qf4?
      • threat
        • 2.Qe5#
      • 1...Qxe6
        • 2.Rxe6#
      • 1...Qb8
        • 2.Rf7#
      • 1...gxf4!
  • Keys
    • 1.Qa1!
      • threat
        • 2.Kxe4#
      • 1...Qxe6
        • 2.Rxe6#
      • 1...Bxf5
        • 2.Sxg8#
      • 1...bxc4
        • 2.Kxc4#
      • 1...Qa8
        • 2.Rf7#
      • 1...Qb8
        • 2.Rf7#
      • 1...Rg4
        • 2.Kxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(i);OGATE,XS(J)::R1(L),XQ(i)
    • Q(i);N_GUARD::R1(L),XQ(i)
    • Q(i);N_GUARD::R1(L)
    • Q(i);N_GUARD,P_PINP(G)::R1(L)
    • R(b);N_GUARD::S(K)
    • R(b);N_GUARD::S(K),XR(b)
    • B(h);N_GUARD::S(K),XQ(i)
  • Tries
    • Try
      • K(F);P-FLIGHT,P_SPINP(H),XP(c)
      • Threat
        • QAB(A)
      • Vars
        • Q(i);CHECK,OGATE,XS(J)::R1(L),XQ(i)
        • R(b);CHECK,N_GUARD::S(K),XR(b)
        • B(h);CHECK,OGATE,P_SPINB(h),XP(H)::QAR1(A),XB(h)
        • Q(i);N_GUARD,N_PINP(H),P_PINP(G)::R1(L)
        • Q(i);N_GUARD::R1(L)
      • Refutation
        • P(d);XP(E)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • Q(i);OGATE,XS(J)::R1(L),XQ(i)
        • Q(i);N_GUARD::R1(L)
      • Refutation
        • P(e);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)+K(F),XP(c)
    • Vars
      • Q(i);OGATE,XS(J)::R1(L),XQ(i)
      • B(h);N_GUARD,SBLOCK,XP(H)::S(K),XQ(i)
      • P(d);XP(E)::QAB(A)+K(F),XP(d)
      • Q(i);N_GUARD::R1(L)
      • R(b);::QAB(A)+K(F),XP(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).