MESON Chess Problem Database

Problem Display
PID: 272311 (8/8/2p5/Qp6/2k1K3/1N6/P7/8 w - - 0 1)

Svetec, Srdan

Mat, 1980

8/8/2p5/Qp6/2k1K3/1N6/P7/8

#2

4 + 3

5454 Near Snap 2023

SOLUTION

  • SOUND
  • Sets
    • 1...b4
      • 2.Qc5#
    • 1...c5
      • 2.Sd2#
  • Tries
    • 1.Qe1?
      • 1...c5
        • 2.Sa5#
      • 1...b4!
    • 1.a3?
      • threat
        • 2.Qb4#
      • 1...b4
        • 2.Qxb4#
      • 1...c5
        • 2.Sd2#
      • 1...Kxb3!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qd4#
      • 1...b4
        • 2.Qd3#
      • 1...c5
        • 2.Sa5#

Anticipated by 18243(1954), 95049(1958)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAR1(D)
    • P(c);SBLOCK::S(B)
  • Tries
    • Try
      • Q(D);
      • Vars
        • P(c);SBLOCK::S(B)
      • Refutation
        • P(b);
    • Try
      • P(A);
      • Threat
        • QAR1(D)
      • Vars
        • P(b);::QAR1(D),XP(b)
        • P(c);SBLOCK::S(B)
      • Refutation
        • K(a);S_FLIGHT,XS(B)
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • P(b);SBLOCK::QAB1(D)
      • P(c);SBLOCK::S(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).