MESON Chess Problem Database

Problem Display
PID: 232983 (8/8/8/1q1R4/k7/2p5/K4R2/6Q1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 2001

8/8/8/1q1R4/k7/2p5/K4R2/6Q1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qd7
      • 2.Rf4#
  • Keys
    • 1.Rf4+!
      • 1...Ka5
        • 2.Qa7#
      • 1...Qc4+
        • 2.Rxc4#
      • 1...Qb4
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD::R(C)
  • Actual
    • R(C);CHECK
    • Vars
      • K(b);P-FLIGHT,P_SPINQ(c)::QAR2(A)
      • Q(c);CHECK,N_GUARD,P_SPINQ(c)::R(C),XQ(c)
      • Q(c);P_SPINQ(c)::QAR(A)
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).