MESON Chess Problem Database

Problem Display
PID: 99698 (3Q4/8/3N4/3p4/8/1Kn1nB2/2Pk1P2/2b4R w - - 0 1)

Labai, Zoltan

Magyar Sakkelet, 1974

3Q4/8/3N4/3p4/8/1Kn1nB2/2Pk1P2/2b4R

#2

7 + 5

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb1
      • 2.Se4#
    • 1...Scd1
      • 2.Se4#
    • 1...Sa2
      • 2.Se4#
    • 1...Se2
      • 2.Se4#
    • 1...Sa4
      • 2.Se4#
    • 1...Se4
      • 2.Sxe4#
    • 1...Sb5
      • 2.Se4#
    • 1...Sed1
      • 2.Sc4#
    • 1...Sg2
      • 2.Sc4#
    • 1...Sc4
      • 2.Sxc4#
    • 1...Sg4
      • 2.Sc4#
    • 1...Sf5
      • 2.Sc4#
  • Tries
    • 1.Qa5?
      • threat
        • 2.Qxc3#
      • 1...Sd1
        • 2.Rxd1#
      • 1...d4
        • 2.Se4#
      • 1...Bb2!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qxe3#
      • 1...Sd1
        • 2.Rxd1#
      • 1...d4
        • 2.Sc4#

Anticipated by 141335(1961)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • S(c);N_GUARD::S(F)
    • S(c);N_GUARD::S(F),XS(c)
    • S(d);N_GUARD::S(F)
    • S(d);N_GUARD::S(F),XS(d)
  • Tries
    • Try
      • Q(G);P_PINS(c)
      • Threat
        • QAB1(G),XS(c)
      • Vars
        • S(d);N_GUARD::R1(A),XS(d)
        • P(e);N_GUARD::S(F)
      • Refutation
        • B(a);
  • Actual
    • Q(G);P_PINS(d)
    • Threat
      • QAB1(G),XS(d)
    • Vars
      • S(c);N_GUARD::R1(A),XS(c)
      • P(e);N_GUARD::S(F)
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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).