MESON Chess Problem Database

Problem Display
PID: 239242 (8/7R/3pkp1B/4p3/1K6/5Q2/8/8 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Coello-75 JT (Problemas), 2017

8/7R/3pkp1B/4p3/1K6/5Q2/8/8

#2

4 + 4

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qxe4#
  • Tries
    • 1.Qg4+?
      • 1...Kd5
        • 2.Qc4#
      • 1...f5!
    • 1.Qb7?
      • 1...e4
        • 2.Qxe4#
      • 1...d5
        • 2.Qd7#
      • 1...f5
        • 2.Qf7#
      • 1...Kf5!
  • Keys
    • 1.Bg5!
      • 1...fxg5
        • 2.Qf7#
      • 1...e4
        • 2.Qxe4#
      • 1...d5
        • 2.Qxf6#
      • 1...f5
        • 2.Re7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAR2(A),XP(a)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB1(A)
      • Refutation
        • P(d);P_SPINP(d)
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR2(A),XP(a)
        • P(b);::QAB1(A)
        • P(d);::QAB1(A)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • P(d);OGATE,XB(C)::QAB1(A)
      • P(a);OGATEB::QAR2(A),XP(a)
      • P(b);SBLOCK::QAR1(A),XP(d)
      • P(d);::R1(D)
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).