MESON Chess Problem Database

Problem Display
PID: 129807 (k1nq4/Pp1p4/R2P4/1N6/2Q5/6p1/6K1/8 w - - 0 1)

Syrovy, V

Svobodne Slovo, 1949

k1nq4/Pp1p4/R2P4/1N6/2Q5/6p1/6K1/8

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4
      • 2.Sc7#
      • 2.Qxc8#
    • 1...Qa5
      • 2.Qxc8#
    • 1...Qg5
      • 2.Sc7#
      • 2.Qxc8#
    • 1...Qb6
      • 2.Qxc8#
    • 1...Qf6
      • 2.Sc7#
      • 2.Qxc8#
    • 1...Qc7
      • 2.Sxc7#
    • 1...Qe7
      • 2.Sc7#
      • 2.Qxc8#
    • 1...Qe8
      • 2.Sc7#
    • 1...Qf8
      • 2.Sc7#
    • 1...Qg8
      • 2.Sc7#
    • 1...Qh8
      • 2.Sc7#
    • 1...bxa6
      • 2.Qd5#
      • 2.Qe4#
    • 1...b6
      • 2.Qd5#
      • 2.Qe4#
  • Keys
    • 1.Qg8!
      • 1...Qxg8
        • 2.Sc7#
      • 1...Sxd6
        • 2.Sc7#
      • 1...Sxa7
        • 2.Qxd8#
      • 1...bxa6
        • 2.Qd5#
      • 1...b6
        • 2.Qd5#
      • 1...Qh4
        • 2.Sc7#
        • 2.Qxc8#
      • 1...Qa5
        • 2.Qxc8#
      • 1...Qg5
        • 2.Sc7#
        • 2.Qxc8#
      • 1...Qb6
        • 2.Qxc8#
      • 1...Qf6
        • 2.Sc7#
        • 2.Qxc8#
      • 1...Qc7
        • 2.Sxc7#
      • 1...Qe7
        • 2.Sc7#
        • 2.Qxc8#
      • 1...Qe8
        • 2.Sc7#
      • 1...Qf8
        • 2.Sc7#
      • 1...Sb6
        • 2.Sc7#
      • 1...Se7
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • Q(f);N_GUARD::QAR2(B),XS(e)
    • Q(f);N_GUARD::S(C),XQ(f)
    • Q(f);N_GUARD::S(C)
    • Q(f);N_GUARD,SBLOCK::S(C)
  • Actual
    • Q(B);
    • Vars
      • Q(f);N_GUARD,XQ(B)::S(C)
      • S(e);P_SPINQ(f),XP(E)::S(C)
      • S(e);OGATEB,P_SPINQ(f),P_SPINS(e),XP(F)::QAR(B),XQ(f)
      • P(b);OGATEB,XR(D)::QAB(B)
      • P(b);OGATEB::QAB(B)
      • Q(f);OGATE,P_SPINS(e)::QAR2(B),XS(e)
      • Q(f);N_GUARD,P_SPINS(e)::S(C),XQ(f)
      • Q(f);N_GUARD::S(C)
      • S(e);P_SPINQ(f)::S(C)
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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).