MESON Chess Problem Database

Problem Display
PID: 121481 (3nB3/1p6/3B4/2NkPp2/2pb4/4pP2/3Q3K/8 w - - 0 1)

Matejo, Josef

Svobodne Slovo, 1952

3nB3/1p6/3B4/2NkPp2/2pb4/4pP2/3Q3K/8

#2

7 + 7

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Bf7#
    • 1...c3
      • 2.Qa2#
  • Tries
    • 1.Sa6?
      • threat
        • 2.Sc7#
      • 1...Ke6
        • 2.Sc7#
      • 1...c3
        • 2.Qa2#
      • 1...Se6
        • 2.Sb4#
      • 1...bxa6!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sf4#
      • 1...Ke6
        • 2.Sf4#
      • 1...cxd3
        • 2.Qa2#
      • 1...c3
        • 2.Qa2#
      • 1...Se6
        • 2.Sb4#
      • 1...f4
        • 2.Sxf4#

Anticipated by 198383(1920)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(g);N_GUARD,SBLOCK::B(G)
    • P(b);OGATEB::QAB(A)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(D)
      • Vars
        • K(d);N_SPINB(c),S_FLIGHT::S(D)
        • P(b);OGATEB::QAB(A)
        • S(g);SBLOCK::S(D)
      • Refutation
        • P(f);XS(D)
  • Actual
    • S(D);N_PINB(c)
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT::S(D)
      • P(b);OGATEB,XS(D)::QAB(A)
      • P(b);OGATEB::QAB(A)
      • S(g);SBLOCK::S(D)
      • P(e);::S(D),XP(e)
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).