MESON Chess Problem Database

Problem Display
PID: 197845 (8/8/8/8/6N1/5nQn/8/3K3k w - - 0 1)

Bylevski, Aleksandr

Sachova skladba, 1986

8/8/8/8/6N1/5nQn/8/3K3k

#2

3 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.Qh2#
    • 1...Sfg1
      • 2.Qh2#
    • 1...Sd2
      • 2.Qh2#
    • 1...Sh2
      • 2.Qxh2#
    • 1...Sd4
      • 2.Qh2#
    • 1...Sh4
      • 2.Qh2#
    • 1...Se5
      • 2.Qh2#
    • 1...Sfg5
      • 2.Qh2#
    • 1...Shg1
      • 2.Sf2#
    • 1...Sf2+
      • 2.Sxf2#
    • 1...Sf4
      • 2.Sf2#
    • 1...Shg5
      • 2.Sf2#
  • Tries
    • 1.Qxh3+?
      • 1...Sh2
        • 2.Qxh2#
      • 1...Kg1!
  • Keys
    • 1.Kc1!
      • 1...Se1
        • 2.Qh2#
      • 1...Sfg1
        • 2.Qh2#
      • 1...Sd2
        • 2.Qh2#
      • 1...Sh2
        • 2.Qxh2#
      • 1...Sd4
        • 2.Qh2#
      • 1...Sh4
        • 2.Qh2#
      • 1...Se5
        • 2.Qh2#
      • 1...Sfg5
        • 2.Qh2#
      • 1...Shg1
        • 2.Sf2#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sf4
        • 2.Sf2#
      • 1...Shg5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::QAR1(B)
    • S(b);N_GUARD::QAR1(B),XS(b)
    • S(c);N_GUARD::S(C)
    • S(c);CHECK,N_GUARD::S(C),XS(c)
  • Tries
    • Try
      • Q(B);CHECK,XS(c)
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAR1(B),XS(b)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(A);P-FLIGHT
    • Vars
      • S(b);N_GUARD::QAR1(B)
      • S(b);N_GUARD::QAR1(B),XS(b)
      • S(c);N_GUARD::S(C)
      • S(c);N_GUARD::S(C),XS(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).