MESON Chess Problem Database

Problem Display
PID: 51758 (8/3pp3/1K6/3kP3/4R1Q1/8/8/8 w - - 0 1)

Dunn, Danny

StrateGems, 2004

8/3pp3/1K6/3kP3/4R1Q1/8/8/8

#2

4 + 3

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Re1?
      • 1...e6
        • 2.Qe4#
      • 1...d6!
    • 1.Re2?
      • 1...e6
        • 2.Qe4#
      • 1...d6!
    • 1.Re3?
      • 1...e6
        • 2.Qe4#
      • 1...d6!
    • 1.Qf5?
      • 1...d6
        • 2.e6#
      • 1...e6!
    • 1.Qg8+?
      • 1...e6
        • 2.Qa8#
      • 1...Kxe4!
  • Keys
    • 1.e6!
      • 1...Kd6
        • 2.Qd1#
      • 1...dxe6
        • 2.Qxe6#
      • 1...d6
        • 2.Qf5#

This anticipates 75189(2004-2005)

FEATURES

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