Problem Display
PID: 206517 (4B3/2K5/p7/kP6/4Q3/2p5/rP6/8 w - - 0 1)

Kartsev, Nikola

64 Shakhmatnoe obozrenie, 1925

4B3/2K5/p7/kP6/4Q3/2p5/rP6/8

#2

5 + 4


6490 yacpdb 2020

SOLUTION


  • SOUND
  • Keys
    • 1.b6!
      • threat
        • 2.b4#
      • 1...Rxb2
        • 2.Qa4#
      • 1...cxb2
        • 2.Qe1#
      • 1...Ra4
        • 2.Qxa4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • P(C);
    • Threat
      • P(A)
    • Vars
      • R(a);N_GUARD,XP(A)::QAR1(B)
      • P(b);OGATEB,XP(A)::QAB(B)
      • R(a);N_GUARD::QAR1(B),XR(a)


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).