MESON Chess Problem Database

Problem Display
PID: 110518 (1B6/8/8/2pN4/3k4/5QK1/1P6/8 w - - 0 1)

Lamoss, Jeno

Munkassakk, 1939

1B6/8/8/2pN4/3k4/5QK1/1P6/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kf4?
      • threat
        • 2.Qe4#
      • 1...c4
        • 2.Ba7#
      • 1...Kc4!
    • 1.Sf4?
      • threat
        • 2.Qd3#
      • 1...c4
        • 2.Se6#
      • 1...Kc4!
    • 1.Qf5?
      • 1...c4
        • 2.Ba7#
      • 1...Kc4!
  • Keys
    • 1.Sc7!
      • 1...Kc4
        • 2.Qc3#
      • 1...Ke5
        • 2.Qf4#
      • 1...c4
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Threat
        • QAR1(B)
      • Vars
        • P(b);OGATEB,SBLOCK::B(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • QAR1(B)
      • Vars
        • P(b);SBLOCK::S(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(b);OGATEB,SBLOCK::B(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(D);
    • Vars
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);SBLOCK::S(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).