MESON Chess Problem Database

Problem Display
PID: 150666 (4K3/5p1b/3Nkp2/2P1p3/8/7P/P5Q1/8 w - - 0 1)

Akhaladze, Beka

ChessStar, 0000

4K3/5p1b/3Nkp2/2P1p3/8/7P/P5Q1/8

#2

6 + 5

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Tries
    • 1.Qb7?
      • threat
        • 2.Qb3#
        • 2.Qxf7#
      • 1...f5
        • 2.Qxf7#
      • 1...Bc2
        • 2.Qxf7#
      • 1...Bd3
        • 2.Qxf7#
      • 1...Be4
        • 2.Qxf7#
      • 1...Bg6
        • 2.Qb3#
      • 1...Bg8
        • 2.Qb3#
      • 1...e4!
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sg7#
      • 1...Kxf5
        • 2.Qg4#
      • 1...Bxf5
        • 2.Qc6#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAB1(B),XP(d)
        • B(e);::QAB1(B),XP(d)
        • B(e);::QAB(B)
      • Refutation
        • P(a);
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(b);OGATEB,S_FLIGHT,XS(E)::QAB1(B)
      • B(e);SBLOCK,XS(E)::QAR2(B)
      • P(a);OGATEB::QAR2(B),XP(a)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).