MESON Chess Problem Database

Problem Display
PID: 274790 (8/4K3/1p6/p5p1/5kp1/2p5/1rB1R3/Qb3NN1 w - - 0 1)

Kapustin, Fedor Mikhailovich

Buletin Problemistic, 1982

8/4K3/1p6/p5p1/5kp1/2p5/1rB1R3/Qb3NN1

#2

6 + 8

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Ba2
      • 2.Qc1#
  • Tries
    • 1.Ke6?
      • threat
        • 2.Rf2#
        • 2.Re4#
      • 1...Rxc2
        • 2.Qa4#
      • 1...Bxc2
        • 2.Qc1#
      • 1...g3
        • 2.Re4#
      • 1...Rb4
        • 2.Rf2#
      • 1...Ba2+!
    • 1.Sh3+?
      • 1...Kf3
        • 2.Rf2#
      • 1...gxh3!
  • Keys
    • 1.Kf6!
      • threat
        • 2.Rf2#
        • 2.Re4#
      • 1...Rxc2
        • 2.Qa4#
      • 1...Bxc2
        • 2.Qc1#
      • 1...g3
        • 2.Re4#
      • 1...Rb4
        • 2.Rf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(a);OGATE::QAB(A)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(b);N_GUARD,XB(D)::QAR(A)
        • B(a);OGATE,XB(D)::QAB(A)
        • P(e);::R1(E)
        • R(b);::R(E)
      • Refutation
        • B(a);CHECK
    • Try
      • S(C);CHECK
      • Vars
        • K(d);N_GUARD,P-FLIGHT::R1(E)
      • Refutation
        • P(e);XS(C)
  • Actual
    • K(F);S_FLIGHT
    • Threat
      • DUALS(2)
    • Vars
      • R(b);N_GUARD,XB(D)::QAR(A)
      • B(a);OGATE,XB(D)::QAB(A)
      • P(e);::R1(E)
      • R(b);::R(E)
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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).