Problem Display
PID: 121300 (7r/3B4/8/1R1K2Pk/7N/8/5QP1/6nr w - - 0 1)

Kvicala, Jan

Sachove listy, 1902

7r/3B4/8/1R1K2Pk/7N/8/5QP1/6nr

#2

7 + 4


6490 yacpdb 2009

SOLUTION


  • SOUND
  • Tries
    • 1.Kc6?
      • threat
        • 2.g4#
      • 1...Rh6+
        • 2.g6#
      • 1...Rxh4
        • 2.Qf7#
      • 1...Rc8+!
    • 1.Qf5?
      • threat
        • 2.Qg4#
      • 1...Kxh4
        • 2.Qg4#
      • 1...Rxh4!
  • Keys
    • 1.Kd6!
      • threat
        • 2.g4#
      • 1...Rh6+
        • 2.g6#
      • 1...Rxh4
        • 2.Qf7#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • P(B)
      • Vars
        • R(d);CHECK,SBLOCK::R(D)+P(F)
        • R(b);SBLOCK,XS(C)::QAB(A)
      • Refutation
        • R(d);CHECK
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT,XS(C)::QAR1(A)
      • Refutation
        • R(b);XS(C)
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • P(B)
    • Vars
      • R(d);CHECK,SBLOCK::R(D)+P(F)
      • R(b);SBLOCK,XS(C)::QAB(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).