MESON Chess Problem Database

Problem Display
PID: 221567 (1K6/Q1PkNRN1/3b4/Bb3P2/5p2/2n1r2B/8/8 w - - 0 1)

Pilchenko, Viacheslav Karlovich

SuperProblem 124. TT, 2014

1K6/Q1PkNRN1/3b4/Bb3P2/5p2/2n1r2B/8/8

#2

9 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.fxe6#
    • 1...Ba3
      • 2.c8S#
    • 1...Bb4
      • 2.c8S#
    • 1...Bxc7+
      • 2.Qxc7#
  • Tries
    • 1.f6+?
      • 1...Re6
        • 2.Bxe6#
      • 1...Rxh3!
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qc8#
      • 1...Bxc7+
        • 2.Qxc7#
      • 1...Rxe7
        • 2.f6#
      • 1...Bxe7
        • 2.c8S#
      • 1...Ba3
        • 2.c8S#
      • 1...Bb4
        • 2.c8S#
      • 1...Bc5
        • 2.c8S#
      • 1...Be5
        • 2.Sc8#
      • 1...Ba6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(b);OGATE::P(C),XR(b)
    • B(e);N_PINP(E)::P=S
    • B(e);CHECK,OGATE,P_SPINB(e),XP(E)::QAR1(D),XB(e)
  • Tries
    • Try
      • P(C);CHECK
      • Vars
        • R(b);N_GUARD,P_SPINR(b)::B(A),XR(b)
      • Refutation
        • R(b);XB(A)
  • Actual
    • Q(D);
    • Threat
      • QAB1(D)
    • Vars
      • B(e);CHECK,OGATE,P_SPINB(e),XP(E)::QAR1(D),XB(e)
      • R(b);N_GUARD,P_SPINR(b),XS(F)::B(A)+P(C)
      • B(e);N_PINP(E),P_SPINB(e),XS(F)::P=S
      • B(e);N_PINP(E)::P=S
      • B(e);N_GUARD,S_CUTR(b)::R(G)+S(F)
      • B(d);N_GUARD::QAB1(D)
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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).