MESON Chess Problem Database

Problem Display
PID: 234760 (k1KnQ3/1p6/8/2p5/2r5/8/8/8 w - - 0 1)

Lincoln, Robert A

Kudesnik, 2015

k1KnQ3/1p6/8/2p5/2r5/8/8/8

#2

2 + 5

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qa4#
    • 1...Rc2
      • 2.Qa4#
    • 1...Rc3
      • 2.Qa4#
    • 1...Ra4
      • 2.Qxa4#
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qa5#
      • 1...Ka7
        • 2.Qa5#
      • 1...Ra4
        • 2.Qxa4#
      • 1...Sc6
        • 2.Qxb7#
      • 1...b6
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::QAR(B)
    • R(a);N_GUARD::QAR(B),XR(a)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)
    • Vars
      • K(d);P-FLIGHT::QAR2(B)
      • R(a);N_GUARD::QAR(B),XR(a)
      • S(e);N_GUARD::QAB1(B),XP(c)
      • P(c);N_GUARD::QAR2(B)
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).