MESON Chess Problem Database

Problem Display
PID: 221692 (1bB5/3r4/4b3/3P1kPP/R4P1K/2R5/p3r1N1/Q7 w - - 0 1)

Novitski, Petr Adrinovich

SuperProblem, 2019

1bB5/3r4/4b3/3P1kPP/R4P1K/2R5/p3r1N1/Q7

#2

10 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rb2
      • 2.Se3#
    • 1...Rc2
      • 2.Se3#
    • 1...Rd2
      • 2.Se3#
    • 1...Rf2
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
  • Tries
    • 1.Re3?
      • threat
        • 2.Qf6#
      • 1...Rf7
        • 2.Bxe6#
      • 1...Be5
        • 2.Qxe5#
      • 1...Rb2!
    • 1.Rf3?
      • threat
        • 2.Qf6#
      • 1...Re5
        • 2.fxe5#
      • 1...Rb2
        • 2.Se3#
      • 1...Be5
        • 2.fxe5#
      • 1...Rf7!
  • Keys
    • 1.Rc7!
      • threat
        • 2.Qf6#
      • 1...Rf7
        • 2.Rxf7#
      • 1...Rb2
        • 2.Se3#
      • 1...Re5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • R(b);N_GUARD::S(B)
    • R(b);N_GUARD::S(B),XR(b)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAR1(A)
      • Vars
        • R(e);OGATE,P_SPINB(d)::B(J),XB(d)
        • B(f);N_GUARD::QAR1(A),XB(f)
      • Refutation
        • R(b);
    • Try
      • R(C);
      • Threat
        • QAR1(A)
      • Vars
        • R(b);OGATE::R(C)+P(E),XR(b)
        • R(b);N_GUARD::S(B)
        • B(f);OGATE::R(C)+P(E),XB(f)
      • Refutation
        • R(e);P_SPINB(d)
  • Actual
    • R(C);
    • Threat
      • QAR1(A)
    • Vars
      • R(e);OGATE,P_SPINB(d)::R(C),XR(e)
      • R(b);N_GUARD::S(B)
      • R(b);N_GUARD::QAR1(A),XR(b)
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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).