MESON Chess Problem Database

Problem Display
PID: 159560 (8/5K2/4R3/2pkp3/6Q1/2p5/8/8 w - - 0 1)

Lincoln, Robert A

Magadanskaya Pravda, 2005

8/5K2/4R3/2pkp3/6Q1/2p5/8/8

#2

3 + 4

145 StrateGems 2012

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Qxe4#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Rd6#
      • 1...e4
        • 2.Qxe4#
      • 1...c4!
  • Keys
    • 1.Qe2!
      • threat
        • 2.Qd3#
      • 1...Kd4
        • 2.Rd6#
      • 1...c4
        • 2.Qxe5#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);::QAB1(A),XP(d)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • R1(B)
      • Vars
        • P(d);::QAB1(A),XP(d)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • K(c);P-FLIGHT::R(B)
      • P(b);SBLOCK::QAR1(A),XP(d)
      • P(d);::QAB1(A),XP(d)
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).