MESON Chess Problem Database

Problem Display
PID: 169229 (8/6Q1/8/7k/8/6K1/4P1P1/r2B4 w - - 0 1)

Khramtsevich, Mikhail Nikolaevich

Serafimovic, Ilya

1st Place, SuperProblem 181. TT, 2017

8/6Q1/8/7k/8/6K1/4P1P1/r2B4

#2

5 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3+
      • 2.e3#
    • 1...Ra4
      • 2.e4#
    • 1...Ra5
      • 2.e3#
      • 2.e4#
    • 1...Ra6
      • 2.e3#
      • 2.e4#
    • 1...Ra7
      • 2.e3#
      • 2.e4#
    • 1...Ra8
      • 2.e3#
      • 2.e4#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Qg5#
        • 2.Qh7#
      • 1...Kh4
        • 2.Qh6#
        • 2.Qh8#
        • 2.Qg4#
        • 2.Qg5#
        • 2.Qh7#
      • 1...Ra5
        • 2.Qh7#
      • 1...Ra6
        • 2.Qg5#
      • 1...Ra7
        • 2.Qg5#
      • 1...Ra4+!
  • Keys
    • 1.Kh3!
      • threat
        • 2.g4#
      • 1...Ra3+
        • 2.e3#
      • 1...Ra4
        • 2.e4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(a);CHECK,N_GUARD::B(A)+P(B)
    • R(a);N_GUARD::B(A)+P(B)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • R(a);SBLOCK::QAR2(E)
        • R(a);SBLOCK::QAR1(E)
      • Refutation
        • R(a);CHECK
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • P(C)
    • Vars
      • R(a);CHECK,N_GUARD::B(A)+P(B)
      • R(a);N_GUARD::B(A)+P(B)
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).