MESON Chess Problem Database

Problem Display
PID: 238199 (1R3K2/8/6pk/7b/7R/8/8/7Q w - - 0 1)

Murashev, Pavel Aleksandrovich

Kudesnik, 2011

1R3K2/8/6pk/7b/7R/8/8/7Q

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kg8?
      • 1...g5
        • 2.Rb6#
        • 2.Qc6#
      • 1...Kg5!
    • 1.Rb7?
      • 1...g5
        • 2.Qc6#
      • 1...Kg5!
    • 1.Qf3?
      • 1...Kg5
        • 2.Qf4#
      • 1...g5
        • 2.Qxh5#
      • 1...Kh7!
    • 1.Qb7?
      • 1...g5
        • 2.Qg7#
      • 1...Kg5!
    • 1.Qa1?
      • 1...Kh7
        • 2.Qg7#
      • 1...g5
        • 2.Qg7#
      • 1...Kg5!
    • 1.Qb1?
      • 1...Kh7
        • 2.Rxh5#
      • 1...g5
        • 2.Rb6#
      • 1...Kg5!
  • Keys
    • 1.Qe4!
      • 1...Kg5
        • 2.Qf4#
      • 1...Kh7
        • 2.Rxh5#
      • 1...g5
        • 2.Rb6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • P(b);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::QAB1(A)
        • P(b);N_GUARD::QAR1(A),XB(a)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(b);::QAB1(A)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • P(b);::QAB1(A)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(c);P-FLIGHT,P_SPINP(b)::R(B),XB(a)
        • P(b);OGATEB,SBLOCK::R(C)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::QAB1(A)
      • K(c);P-FLIGHT,P_SPINP(b)::R(B),XB(a)
      • P(b);OGATEB,SBLOCK::R(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).