MESON Chess Problem Database

Problem Display
PID: 163136 (2N5/3k4/P7/6Q1/P2N2K1/8/8/8 w - - 0 1)

Zimmer, Eligiusz

Best Problems, 2013

2N5/3k4/P7/6Q1/P2N2K1/8/8/8

#2

6 + 1

5454 Near Snap 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ke8
      • 2.Qe7#
  • Tries
    • 1.Qc5?
      • 1...Ke8
        • 2.Qe7#
      • 1...Kd8!
  • Keys
    • 1.Se6!
      • 1...Kc6
        • 2.Qb5#
      • 1...Kxe6
        • 2.Qf5#
      • 1...Kxc8
        • 2.Qd8#
      • 1...Ke8
        • 2.Qe7#

Anticipated by 5043(1898), 176153(1953), 79229(1990), 7995(1995)

FEATURES

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