MESON Chess Problem Database

Problem Display
PID: 36955 (3K2b1/BNpP4/p1R5/1p1kpp1Q/3N3n/8/2B5/8 w - - 0 1)

Fokin, Yuri Georgievich

2nd Prize, Igr Dobroi Bol, 1994

3K2b1/BNpP4/p1R5/1p1kpp1Q/3N3n/8/2B5/8

#2

8 + 8

3705 Album Russia (1992-1994) 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Bf7
      • 2.Qxf7#
    • 1...Bh7
      • 2.Qf7#
  • Tries
    • 1.Qe2?
      • threat
        • 2.Bb3#
      • 1...exd4
        • 2.Rc5#
      • 1...e4!
    • 1.Qxf5?
      • threat
        • 2.Bb3#
        • 2.Be4#
        • 2.Qe4#
      • 1...Bh7
        • 2.Bb3#
        • 2.Be4#
        • 2.Qe6#
        • 2.Qf7#
      • 1...Sxf5!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qxg8#
      • 1...exd4
        • 2.Rc5#
      • 1...Be6
        • 2.Qxe6#
      • 1...Bf7
        • 2.Qxf7#
      • 1...Bh7
        • 2.Qf7#
        • 2.Qe6#
      • 1...e4
        • 2.Bb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • B(h);N_GUARD::QAB(C),XB(h)
    • B(h);N_GUARD::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • B(A)
      • Vars
        • P(d);SBLOCK,XS(B)::R1(D)
      • Refutation
        • P(d);
    • Try
      • Q(C);P_PINP(d),XP(e)
      • Threat
        • DUALS(3)
      • Refutation
        • S(a);N_SPINP(d),XQ(C)
  • Actual
    • Q(C);
    • Threat
      • QAB(C),XB(h)
    • Vars
      • P(d);SBLOCK,XS(B)::R1(D)
      • B(h);N_GUARD::QAB1(C),XB(h)
      • B(h);N_GUARD::QAB(C),XB(h)
      • P(d);::B(A)
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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).