MESON Chess Problem Database

Problem Display
PID: 238217 (8/1N6/2K5/R7/pk3P2/1p3Q2/8/8 w - - 0 1)

Murashev, Pavel Aleksandrovich

Kudesnik, 2012

8/1N6/2K5/R7/pk3P2/1p3Q2/8/8

#2

5 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Rxa4#
  • Tries
    • 1.Rc5?
      • 1...b2
        • 2.Qc3#
      • 1...a3
        • 2.Qe4#
      • 1...Ka3!
    • 1.Re5?
      • 1...Kc4
        • 2.Re4#
      • 1...b2
        • 2.Re4#
      • 1...a3
        • 2.Re4#
      • 1...Ka3!
    • 1.Qd3?
      • 1...b2
        • 2.Rb5#
      • 1...a3
        • 2.Qd4#
      • 1...Ka3!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Rxa4#
      • 1...Ka3
        • 2.Qxb3#
      • 1...Kc4
        • 2.Rxa4#
      • 1...Kxa5
        • 2.Qc3#
      • 1...a3
        • 2.Ra4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT::R(C),XP(b)
  • Tries
    • Try
      • R(C);
      • Vars
        • P(a);::QAB1(A)
        • P(b);SBLOCK::QAR(A)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(c);P-FLIGHT::R(C)
        • P(a);::R(C)
        • P(b);SBLOCK::R(C)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(a);::R1(C)
        • P(b);::QAR2(A)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
  • Actual
    • S(E);
    • Threat
      • R1(C),XP(b)
    • Vars
      • K(c);P_SPINP(a),S_FLIGHT::QAR1(A),XP(a)
      • K(c);P-FLIGHT::R(C),XP(b)
      • K(c);S_FLIGHT,XR(C)::QAB(A)
      • P(b);::R1(C)
HTML5 logo

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).