MESON Chess Problem Database

Problem Display
PID: 75189 (8/6pp/8/6Pk/4Q1R1/8/5K2/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize, Kirichenko-50 JT, 2004-2005

8/6pp/8/6Pk/4Q1R1/8/5K2/8

#2

4 + 3

6167 Viktor Chepizhny 2007
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kg3?
      • threat
        • 2.Qxh7#
      • 1...g6
        • 2.Qh1#
      • 1...h6!
    • 1.Rg1?
      • threat
        • 2.Qxh7#
      • 1...g6
        • 2.Qh1#
        • 2.Qg4#
      • 1...h6!
    • 1.Rg2?
      • threat
        • 2.Qxh7#
      • 1...g6
        • 2.Qg4#
      • 1...h6!
    • 1.Rg3?
      • threat
        • 2.Qxh7#
      • 1...g6
        • 2.Qh1#
        • 2.Qg4#
      • 1...h6!
    • 1.Qf5?
      • 1...h6
        • 2.g6#
      • 1...g6!
  • Keys
    • 1.g6!
      • 1...Kh6
        • 2.Qh1#
      • 1...hxg6
        • 2.Qxg6#
      • 1...h6
        • 2.Qf5#

Anticipated by 51758(2004)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAR2(B),XP(c)
      • Vars
        • P(b);SBLOCK::QAR(B)
      • Refutation
        • P(c);
    • Try
      • R(C);
      • Threat
        • QAR2(B),XP(c)
      • Refutation
        • P(c);
    • Try
      • R(C);
      • Threat
        • QAR2(B),XP(c)
      • Vars
        • P(b);SBLOCK::QAB1(B)
      • Refutation
        • P(c);
    • Try
      • R(C);
      • Threat
        • QAR2(B),XP(c)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • P(c);SBLOCK::QAR(B)+P(D)
      • Refutation
        • P(b);
  • Actual
    • P(D);
    • Vars
      • K(a);P-FLIGHT::QAR(B)
      • P(c);OGATE,XP(D)::QAB1(B),XP(c)
      • P(c);SBLOCK::QAR2(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).