MESON Chess Problem Database

Problem Display
PID: 76547 (8/p7/2K5/k1p5/PN6/8/8/1Q6 w - - 0 1)

Lakeland, Rev T

The Tablet, 1936

(First published on Sat Feb 22 1936)

8/p7/2K5/k1p5/PN6/8/8/1Q6

#2

4 + 3

15239 Valois Notebooks 2016

SOLUTION

  • SOUND
  • Tries
    • 1.Kxc5?
      • 1...Kxa4
        • 2.Qa2#
      • 1...a6!
    • 1.Sc2?
      • threat
        • 2.Qb5#
      • 1...Kxa4
        • 2.Qa2#
        • 2.Qb5#
      • 1...Ka6
        • 2.Qb5#
      • 1...a6!
    • 1.Sd3?
      • threat
        • 2.Qb5#
      • 1...Kxa4
        • 2.Qa2#
      • 1...Ka6
        • 2.Qb5#
      • 1...a6!
    • 1.Sd5?
      • threat
        • 2.Qb5#
      • 1...Kxa4
        • 2.Qa2#
      • 1...Ka6
        • 2.Qb5#
      • 1...a6!
  • Keys
    • 1.Sa6!
      • threat
        • 2.Qb5#
      • 1...Kxa4
        • 2.Qa2#
      • 1...Kxa6
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT,XP(b)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
        • K(a);P-FLIGHT::QAB1(A)
      • Refutation
        • P(c);
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(B)::QAR2(A)
      • K(a);P-FLIGHT,XS(C)::QAB1(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).