MESON Chess Problem Database

Problem Display
PID: 42734 (1B1K4/1b1pp3/1N6/5n2/Q1n1k3/b1rqpNP1/4P3/1B1r4 w - - 0 1)

Wallis, Walter Warren

Recomm., BCF 037. Ty., 1940-1941

1B1K4/1b1pp3/1N6/5n2/Q1n1k3/b1rqpNP1/4P3/1B1r4

#2

8 + 11

SOLUTION

  • SOUND
  • Keys
    • 1.Qxd7!
      • threat
        • 2.Sg5#
      • 1...Bd6
        • 2.Qxb7#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Scd6
        • 2.Qe6#
      • 1...Sfd6
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(E);N_PINS(f),P_SPINQ(E),XP(j)
    • Threat
      • S(C)
    • Vars
      • B(b);N_PINQ(E)::QAB(E),XB(i)
      • B(i);N_GUARD,N_PINQ(E)::QAB1(E),XB(i)
      • S(f);N_PINQ(E)::QAR2(E)
      • S(h);N_PINQ(E)::QAR2(E)
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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).