MESON Chess Problem Database

Problem Display
PID: 187427 (8/2q1p3/4pknK/R2b2N1/3p1pQ1/3B4/6pN/6r1 w - - 0 1)

Burger, Robert Eugene

30/32 Place, 10. WCCT, 2016-2017

8/2q1p3/4pknK/R2b2N1/3p1pQ1/3B4/6pN/6r1

#2

6 + 10

145 StrateGems 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qxe6#
    • 1...Bf3
      • 2.Qxe6#
    • 1...Be4
      • 2.Qxe6#
    • 1...Bc6
      • 2.Qxe6#
    • 1...Bb7
      • 2.Qxe6#
    • 1...Ba8
      • 2.Qxe6#
    • 1...Se5
      • 2.Qxf4#
    • 1...e5
      • 2.Qf5#
  • Tries
    • 1.Sh7+?
      • 1...Kf7
        • 2.Qxg6#
      • 1...Ke5!
    • 1.Qh3?
      • threat
        • 2.Sg4#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Bf3
        • 2.Qxe6#
      • 1...Se5!
    • 1.Qxf4+?
      • 1...Sxf4
        • 2.Sg4#
      • 1...Qxf4!
    • 1.Qh4?
      • threat
        • 2.Sg4#
      • 1...Ke5
        • 2.Sf7#
      • 1...Se5
        • 2.Qxf4#
      • 1...Bf3!
  • Keys
    • 1.Qh5!
      • threat
        • 2.Sg4#
      • 1...Ke5
        • 2.Se4#
      • 1...Bf3
        • 2.Qxg6#
      • 1...Se5
        • 2.Sh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • K(g);P_SPINB(e),S_FLIGHT::QAR1(C),XP(f)
    • B(e);N_GUARD::QAR1(C),XP(f)
    • S(h);N_GUARD,S_CUTQ(i)::QAR2(C),XP(d)
    • P(f);N_GUARD::QAR1(C)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(g);P-FLIGHT::QAB1(C),XS(h)
      • Refutation
        • K(g);P_SPINB(e),S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • S(A)
      • Vars
        • K(g);P_SPINB(e),S_FLIGHT::QAR1(C),XP(f)
        • B(e);N_GUARD::QAR1(C),XP(f)
      • Refutation
        • S(h);
    • Try
      • Q(C);CHECK,XP(d)
      • Vars
        • S(h);XQ(C)::S(A)
      • Refutation
        • Q(i);P_PINS(E),XQ(C)
    • Try
      • Q(C);
      • Threat
        • S(A)
      • Vars
        • K(g);P_SPINB(e),S_FLIGHT::S(E)
        • S(h);N_GUARD,S_CUTQ(i)::QAR2(C),XP(d)
      • Refutation
        • B(e);
  • Actual
    • Q(C);
    • Threat
      • S(A)
    • Vars
      • K(g);P_SPINB(e),S_FLIGHT::QAR(C)+S(E)
      • B(e);::QAR1(C),XS(h)
      • S(h);::S(E)
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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).