MESON Chess Problem Database

Problem Display
PID: 135599 (6b1/1pp5/6BR/3k3p/1P1N1Qp1/nK4p1/4P1Pq/8 w - - 0 1)

Hirschenson, Aaron

The Problemist Supplement, 2010

6b1/1pp5/6BR/3k3p/1P1N1Qp1/nK4p1/4P1Pq/8

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Rxh5#
    • 1...Qxg2
      • 2.Rxh5#
    • 1...Bf7
      • 2.Bxf7#
    • 1...Bh7
      • 2.Bf7#
    • 1...h4
      • 2.Rh5#
  • Tries
    • 1.Bf5?
      • threat
        • 2.Qe4#
      • 1...Be6
        • 2.Bxe6#
      • 1...Qxg2!
    • 1.Qf6?
      • threat
        • 2.e4#
      • 1...Qxg2
        • 2.Rxh5#
      • 1...Be6!
  • Keys
    • 1.e3!
      • threat
        • 2.Be4#
      • 1...Qxg2
        • 2.Rxh5#
      • 1...Bh7
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::R(H),XP(f)
    • Q(a);N_GUARD,XP(B)::R(H),XP(f)
    • B(i);N_GUARD::B(G),XB(i)
    • B(i);N_GUARD::B(G)
    • P(f);S_CUTQ(a)::R(H)
  • Tries
    • Try
      • B(G);
      • Threat
        • QAB1(F)
      • Vars
        • B(i);N_GUARD::B(G),XB(i)
      • Refutation
        • Q(a);XP(B)
    • Try
      • Q(F);
      • Threat
        • P(A)
      • Vars
        • Q(a);N_GUARD,XP(B)::R(H),XP(f)
      • Refutation
        • B(i);
  • Actual
    • P(A);
    • Threat
      • B(G)
    • Vars
      • Q(a);N_GUARD,XP(B)::R(H),XP(f)
      • B(i);N_GUARD::B(G)
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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).