Problem Display
PID: 75045 (3n1KB1/3p1n2/2p1k3/8/5P1B/2PQ4/8/8 w - - 0 1)

Gvozdjak, Peter

Slesarenko, Anatoly Vasilevich

Sp. Prize, Shakhmatnaya kompozitsiya, 1999

3n1KB1/3p1n2/2p1k3/8/5P1B/2PQ4/8/8

#2

6 + 5


6166 FIDE Album (1998-2000) 2007

SOLUTION


  • SOUND
  • Sets
    • 1...Sb7
      • 2.Bxf7#
  • Tries
    • 1.Be7?
      • threat
        • 2.Qe4#
      • 1...d5
        • 2.Qh3#
      • 1...d6!
    • 1.c4?
      • threat
        • 2.Qg6#
      • 1...d6
        • 2.Qh3#
      • 1...d5!
  • Keys
    • 1.Ke8!
      • threat
        • 2.Qxd7#
      • 1...d5
        • 2.Qg6#
      • 1...d6
        • 2.Qe4#

FEATURES


  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::B(F),XS(d)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR2(B)
      • Vars
        • P(c);SBLOCK::QAB(B)
      • Refutation
        • P(c);
    • Try
      • P(A);
      • Threat
        • QAR2(B)
      • Vars
        • P(c);SBLOCK::QAB(B)
      • Refutation
        • P(c);
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAB1(B),XP(c)
    • Vars
      • P(c);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).