MESON Chess Problem Database

Problem Display
PID: 59509 (K7/8/7B/5B1p/1p1P4/1pb5/1pP1P1Q1/1Rnkn2R w - - 0 1)

Casa, Alex

The Problemist, 2005

K7/8/7B/5B1p/1p1P4/1pb5/1pP1P1Q1/1Rnkn2R

#2

9 + 8

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • 1...Bxd4
        • 2.Qd3#
      • 1...bxc2
        • 2.e4#
      • 1...Bd2
        • 2.e3#
      • 1...h4!
    • 1.e3?
      • 1...bxc2
        • 2.Bxc2#
        • 2.Qxc2#
      • 1...Bd2
        • 2.Qf3#
      • 1...h4
        • 2.Bg4#
      • 1...Bxd4!
  • Keys
    • 1.e4!
      • 1...Bxd4
        • 2.Qd2#
      • 1...bxc2
        • 2.Qf3#
      • 1...Bd2
        • 2.Qxd2#
      • 1...h4
        • 2.Bg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Vars
        • B(f);N_GUARD,XP(F)::QAR2(E)
        • P(e);SBLOCK,XP(C)::QAB(E)+P(D)
        • B(f);SBLOCK::QAB(E)+P(D)
      • Refutation
        • P(h);
    • Try
      • P(D);
      • Vars
        • B(f);SBLOCK::QAB(E)
        • P(h);N_GUARD::B(G)
      • Refutation
        • B(f);XP(F)
  • Actual
    • P(D);
    • Vars
      • B(f);N_GUARD,XP(F)::QAR1(E)
      • P(e);SBLOCK,XP(C)::QAB(E)
      • B(f);N_GUARD::QAR1(E),XB(f)
      • P(h);N_GUARD::B(G)
HTML5 logo

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).