Problem Display
PID: 165118 (8/4B3/8/3p1N2/5kp1/3Q4/K7/8 w - - 0 1)

Zujevas, Nikolajus

Sachmatija, 2008

8/4B3/8/3p1N2/5kp1/3Q4/K7/8

#2

4 + 3


5454 Near Snap 2017

SOLUTION


  • SOUND
  • Tries
    • 1.Sg3?
      • 1...Ke5
        • 2.Qe3#
      • 1...d4!
    • 1.Sd4?
      • 1...Ke5
        • 2.Qe3#
      • 1...g3!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Sg6#
      • 1...Ke5
        • 2.Qe3#
      • 1...g3
        • 2.Qd4#

Anticipated by 94515(1945), 212400(1968), 39223(1972), 226975(1984), 94593(1997)

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • P(b);
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
      • P(b);SBLOCK::QAR2(B)


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).