MESON Chess Problem Database

Problem Display
PID: 183255 (8/2pN4/4pQ2/1P6/K1k5/3p4/4P3/8 w - - 0 1)

Utarova, Alana

Kudesnik, 2018

8/2pN4/4pQ2/1P6/K1k5/3p4/4P3/8

#2

5 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sb6#
  • Tries
    • 1.Qc3+?
      • 1...Kd5
        • 2.Qxd3#
      • 1...Kxc3!
    • 1.Qe5?
      • threat
        • 2.Qc5#
      • 1...c5
        • 2.Sb6#
        • 2.Qxc5#
      • 1...dxe2!
    • 1.exd3+?
      • 1...Kd5
        • 2.Qe5#
      • 1...Kxd3!
  • Keys
    • 1.e3!
      • threat
        • 2.Qd4#
      • 1...Kd5
        • 2.Qd4#
      • 1...e5
        • 2.Qc6#
      • 1...c5
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD,SBLOCK::S(E)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(D),XP(a)
      • Refutation
        • K(b);P-FLIGHT,XQ(D)
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Refutation
        • P(a);XP(A)
    • Try
      • P(A);CHECK,XP(a)
      • Vars
        • K(b);S_FLIGHT::QAR1(D)
      • Refutation
        • K(b);S_FLIGHT,XP(A)
  • Actual
    • P(A);
    • Threat
      • QAR1(D)
    • Vars
      • K(b);S_FLIGHT::QAR1(D)
      • P(c);OGATE::QAR2(D)
      • P(d);N_GUARD,SBLOCK::S(E)
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).