MESON Chess Problem Database

Problem Display
PID: 196237 (K2b4/8/k7/P2N4/Q7/8/n7/8 w - - 0 1)

Bylevski, Aleksandr

Sachova skladba, 1986

K2b4/8/k7/P2N4/Q7/8/n7/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Sc7#
    • 1...Bxa5
      • 2.Qc4#
    • 1...Bg5
      • 2.Sc7#
    • 1...Bb6
      • 2.axb6#
    • 1...Bf6
      • 2.Sc7#
    • 1...Bc7
      • 2.Sxc7#
    • 1...Be7
      • 2.Sc7#
    • 1...Sc1
      • 2.Sb4#
    • 1...Sc3
      • 2.Sb4#
    • 1...Sb4
      • 2.Sxb4#
  • Tries
    • 1.Qc6+?
      • 1...Bb6
        • 2.Qxb6#
      • 1...Kxa5!
  • Keys
    • 1.Kb8!
      • 1...Bc7+
        • 2.Sxc7#
      • 1...Bxa5
        • 2.Qc4#
      • 1...Bh4
        • 2.Sc7#
      • 1...Bg5
        • 2.Sc7#
      • 1...Bb6
        • 2.axb6#
      • 1...Bf6
        • 2.Sc7#
      • 1...Be7
        • 2.Sc7#
      • 1...Sc1
        • 2.Sb4#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::S(C)
    • B(c);P_SPINB(c),SBLOCK,XP(B)::QAB(A)
    • B(c);OGATE::QAR(A)+P(B),XB(c)
    • B(c);N_GUARD::S(C),XB(c)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • B(c);N_GUARD,P_SPINB(c)::QAR1(A),XB(c)
      • Refutation
        • K(b);P-FLIGHT,XP(B)
  • Actual
    • K(D);P-FLIGHT
    • Vars
      • B(c);CHECK,N_GUARD::S(C),XB(c)
      • B(c);P_SPINB(c),SBLOCK,XP(B)::QAB(A)
      • B(c);N_GUARD::S(C)
      • B(c);OGATE::QAR(A)+P(B),XB(c)
      • S(a);N_GUARD::S(C)
      • S(a);N_GUARD::S(C),XS(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).