MESON Chess Problem Database

Problem Display
PID: 154569 (6K1/6p1/2P5/3k3N/1Q3B2/8/4R3/2q5 w - - 0 1)

Lawton, Howard

Sheffield Guardian (The), 1911

(First published on Fri May 26 1911)

6K1/6p1/2P5/3k3N/1Q3B2/8/4R3/2q5

#2

6 + 3

15239 Valois Notebooks 2015

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4
      • 2.Qd6#
    • 1...Qc5
      • 2.Qe4#
    • 1...Qxc6
      • 2.Re5#
  • Tries
    • 1.Sf6+?
      • 1...Kxc6
        • 2.Re6#
      • 1...gxf6!
    • 1.Qb5+?
      • 1...Kd4
        • 2.Be5#
      • 1...Qc5!
  • Keys
    • 1.Re6!
      • threat
        • 2.Rd6#
      • 1...Kxe6
        • 2.Qe4#
      • 1...Qxf4
        • 2.Sxf4#
      • 1...Qxc6
        • 2.Re5#
      • 1...Qc4
        • 2.Qd6#
      • 1...Qc5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(a);SBLOCK::QAR1(B)
    • Q(a);SBLOCK::QAB1(B)
    • Q(a);SBLOCK,XP(E)::R1(A)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);S_FLIGHT,XP(E)::R(A)
      • Refutation
        • P(c);XS(D)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::B(C)
      • Refutation
        • Q(a);P_SPINQ(a)
  • Actual
    • R(A);
    • Threat
      • R1(A)
    • Vars
      • K(b);S_FLIGHT,XR(A)::QAR2(B)
      • Q(a);XB(C)::S(D),XQ(a)
      • Q(a);SBLOCK,XP(E)::R1(A)
      • Q(a);SBLOCK::QAR1(B)
      • Q(a);SBLOCK::QAB1(B)
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).