MESON Chess Problem Database

Problem Display
PID: 174915 (8/5pQ1/8/4p1N1/R1Pkn3/8/1K3P2/2N5 w - - 0 1)

Kuneticky, Otokar

Sachove listy, 1901

8/5pQ1/8/4p1N1/R1Pkn3/8/1K3P2/2N5

#2

7 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Se6#
    • 1...f6
      • 2.Se6#
  • Tries
    • 1.Qxf7?
      • threat
        • 2.Se6#
        • 2.Qd5#
      • 1...Sxf2
        • 2.Qxf2#
        • 2.Qa7#
      • 1...Sxg5
        • 2.Qd5#
      • 1...Sd2
        • 2.Qd5#
        • 2.Qa7#
      • 1...Sc3
        • 2.Qa7#
      • 1...Sg3
        • 2.Qd5#
        • 2.Qa7#
      • 1...Sc5
        • 2.Qd5#
      • 1...Sd6
        • 2.Qd5#
        • 2.Qa7#
      • 1...Sf6
        • 2.Qa7#
      • 1...Kc5!
  • Keys
    • 1.Qg6!
      • 1...Kc5
        • 2.Sb3#
      • 1...Sxf2
        • 2.Qb6#
      • 1...Sxg5
        • 2.Sb3#
      • 1...fxg6
        • 2.Se6#
      • 1...Sd2
        • 2.Qb6#
        • 2.Qd6#
      • 1...Sc3
        • 2.Sb3#
        • 2.Qb6#
      • 1...Sg3
        • 2.Sb3#
        • 2.Qb6#
        • 2.Qd6#
      • 1...Sc5
        • 2.Se2#
        • 2.Sf3#
        • 2.Qd6#
      • 1...Sd6
        • 2.Sb3#
        • 2.Qxd6#
      • 1...Sf6
        • 2.Sb3#
      • 1...f5
        • 2.Se6#
      • 1...f6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::S(F)
    • P(d);N_GUARD,N_SPINP(c)::S(F)
  • Tries
    • Try
      • Q(G);N_PINP(c),XP(d)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);XS(F)::QAR1(G)
        • S(b);N_GUARD::QAB(G)
        • S(b);::QAR1(G)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(G);N_PINP(c)
    • Vars
      • K(a);S_FLIGHT::S(A)
      • S(b);N_GUARD,XP(C)::QAB(G)
      • S(b);XS(F)::S(A)
      • P(d);N_GUARD,XQ(G)::S(F)
      • S(b);::S(A)
      • P(d);N_GUARD::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).