MESON Chess Problem Database

Problem Display
PID: 174918 (8/6n1/8/3p3P/3pk3/3N1p1P/2Q2P2/1K6 w - - 0 1)

Pech, Jindrich

Sachove listy, 1901

8/6n1/8/3p3P/3pk3/3N1p1P/2Q2P2/1K6

#2

6 + 5

6490 yacpdb 2018
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qe2+?
      • 1...Kf5
        • 2.Qe5#
      • 1...fxe2!
  • Keys
    • 1.Qc7!
      • 1...Kxd3
        • 2.Qc2#
      • 1...Kf5
        • 2.Qe5#
      • 1...Sxh5
        • 2.Qh7#
      • 1...Sf5
        • 2.Sc5#
      • 1...Se6
        • 2.Qh7#
      • 1...Se8
        • 2.Qh7#

This anticipates 190959(1939)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • P(a);XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(D)::QAB1(B)
      • K(c);S_FLIGHT::QAR1(B)
      • S(e);OGATE,XP(F)::QAB(B)
      • S(e);SBLOCK::S(D)
      • S(e);OGATE::QAB(B)
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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).