MESON Chess Problem Database

Problem Display
PID: 182269 (rn4Q1/pPqkp3/p3N3/N3PRPK/8/8/8/8 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Deutsches Wochenschach, 1906

rn4Q1/pPqkp3/p3N3/N3PRPK/8/8/8/8

#2

8 + 7

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa5
      • 2.Qc8#
    • 1...Qb6
      • 2.Qc8#
    • 1...Qd6
      • 2.Qc8#
    • 1...Qc8
      • 2.Qxc8#
      • 2.bxc8Q#
      • 2.bxc8B#
    • 1...Sc6
      • 2.Sc5#
  • Keys
    • 1.Rf6!
      • 1...Qxa5
        • 2.Qc8#
      • 1...Qxe5
        • 2.Qd8#
      • 1...Qxb7
        • 2.Qd8#
      • 1...exf6
        • 2.Qf7#
      • 1...Qb6
        • 2.Qc8#
      • 1...Qd6
        • 2.Qc8#
        • 2.Qd8#
      • 1...Qd8
        • 2.Qxd8#
      • 1...Qc1
        • 2.Qd8#
      • 1...Qc2
        • 2.Qd8#
      • 1...Qc3
        • 2.Qd8#
      • 1...Qc4
        • 2.Qd8#
      • 1...Qc5
        • 2.Qd8#
      • 1...Qc6
        • 2.Qd8#
      • 1...Qc8
        • 2.Qxc8#
        • 2.bxc8Q#
        • 2.bxc8B#
      • 1...Sc6
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD,XS(A)::QAB1(H)
    • Q(c);N_GUARD::QAB1(H)
    • S(g);S_CUTQ(c)::S(F)
  • Actual
    • R(C);
    • Vars
      • Q(c);N_GUARD,XS(A)::QAB1(H)
      • Q(c);N_GUARD,P_PINP(D),XP(B)::QAR1(H)
      • Q(c);N_GUARD,XP(G)::QAR1(H)
      • P(e);OGATEB,XR(C)::QAR2(H)
      • Q(c);N_GUARD::QAB1(H)
      • Q(c);N_GUARD::QAR1(H),XQ(c)
      • Q(c);N_GUARD::QAR1(H)
      • S(g);S_CUTQ(c)::S(F)
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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).