MESON Chess Problem Database

Problem Display
PID: 214872 (6NK/8/6k1/8/7B/8/4Q3/8 w - - 0 1)

Riczu, Lajos

Land og Folk, 1975

6NK/8/6k1/8/7B/8/4Q3/8

#2

4 + 1

5454 Near Snap 2020
15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qh7#
      • 1...Kh5
        • 2.Qg5#
      • 1...Kf5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qh5#
      • 1...Kf5
        • 2.Qe4#
      • 1...Kh6
        • 2.Qh5#
      • 1...Kf7
        • 2.Qe8#

Anticipated by 222908(1926), 227921(1926), 30940(1937)

This anticipates 227343(1984), 137118(1992), 245851(2002)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P-FLIGHT::QAR1(A)
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).