MESON Chess Problem Database

Problem Display
PID: 238251 (B7/2Q2K2/5P2/2pRNPp1/4k3/Rr4pN/q3p3/4n1Bb w - - 0 1)

Murashev, Pavel Aleksandrovich

64 Shakhmatnoe obozrenie, 2017

B7/2Q2K2/5P2/2pRNPp1/4k3/Rr4pN/q3p3/4n1Bb

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kg6?
      • threat
        • 2.Rd4#
      • 1...Re3
        • 2.Rxe3#
      • 1...Rb7!
    • 1.Sd7?
      • threat
        • 2.Sxg5#
      • 1...Kf3
        • 2.Rd4#
      • 1...Rb7
        • 2.Qe5#
      • 1...Sf3
        • 2.Sxc5#
      • 1...g4
        • 2.Sg5#
        • 2.Qf4#
      • 1...Qd2!
    • 1.Rxc5+?
      • 1...Kxf5
        • 2.Qd7#
        • 2.Qc8#
      • 1...Rb7+!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sxg5#
      • 1...Kf3
        • 2.Rd4#
      • 1...Qd2
        • 2.Sxd2#
      • 1...Rb7
        • 2.Re5#
      • 1...Sf3
        • 2.Sd6#
      • 1...g4
        • 2.Sg5#
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(I);S_FLIGHT
      • Threat
        • B(J)+R(D),DCHECK
      • Vars
        • R(e);OGATE::R1(B),XR(e)
      • Refutation
        • R(e);
    • Try
      • S(E);
      • Threat
        • S(C),XP(i)
      • Vars
        • K(g);P_SPINR(e),S_FLIGHT::B(J)+R(D)
        • R(e);P_PINR(D)::QAR1(H)
        • S(a);SBLOCK::S(E),XP(h)
      • Refutation
        • Q(c);
    • Try
      • R(D);CHECK,XP(h)
      • Refutation
        • R(e);CHECK,P_PINQ(H),P_SPINR(e)
  • Actual
    • S(E);
    • Threat
      • S(C),XP(i)
    • Vars
      • K(g);P_SPINR(e),S_FLIGHT::B(J)+R(D)
      • Q(c);N_GUARD::S(E),XQ(c)
      • R(e);P_PINQ(H)::R1(D)
      • S(a);SBLOCK::S(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).