MESON Chess Problem Database

Problem Display
PID: 230131 (7N/2b3Qp/Bp6/rp5k/8/1bP1p3/p2pqBNP/K2n4 w - - 0 1)

Lawton, Howard

Southend Times, 1937

7N/2b3Qp/Bp6/rp5k/8/1bP1p3/p2pqBNP/K2n4

#2

8 + 12

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Sxf4#
    • 1...Bd8
      • 2.Sf4#
    • 1...b4
      • 2.Bxe2#
    • 1...h6
      • 2.Qg6#
  • Tries
    • 1.Qxh7+?
      • 1...Kg5
        • 2.Qg6#
      • 1...Kg4!
  • Keys
    • 1.h4!
      • threat
        • 2.Qg5#
      • 1...Qg4
        • 2.Qxh7#
      • 1...Bf4
        • 2.Sxf4#
      • 1...Bd8
        • 2.Sf4#
      • 1...b4
        • 2.Bxe2#
      • 1...h6
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(k);N_GUARD::S(C),XB(k)
    • B(k);N_GUARD::S(C)
    • P(h);OGATE::B(F),XQ(d)
    • P(l);N_GUARD::QAB1(G)
  • Tries
    • Try
      • Q(G);CHECK,XP(l)
      • Vars
        • K(i);P-FLIGHT::QAR1(G)
      • Refutation
        • K(i);S_FLIGHT
  • Actual
    • P(D);
    • Threat
      • QAR1(G)
    • Vars
      • Q(d);SBLOCK::QAR2(G),XP(l)
      • B(k);N_GUARD::S(C),XB(k)
      • B(k);N_GUARD::S(C)
      • P(h);OGATE::B(F),XQ(d)
      • P(l);N_GUARD::QAB1(G)
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).