MESON Chess Problem Database

Problem Display
PID: 57946 (1B1n4/2rp3Q/3kp3/R7/8/b1N5/2K3B1/8 w - - 0 1)

Jacobs, Walter William

The Chess Review, 1936

1B1n4/2rp3Q/3kp3/R7/8/b1N5/2K3B1/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sc6
      • 2.Se4#
  • Tries
    • 1.Qh2+?
      • 1...e5
        • 2.Qxe5#
      • 1...Ke7!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qf8#
      • 1...e5
        • 2.Qxe5#
      • 1...Bc5
        • 2.Sb5#
      • 1...Sc6
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);N_PINS(C),SBLOCK::S(C)
  • Tries
    • Try
      • Q(E);CHECK
      • Vars
        • P(c);P_SPINP(c)::QAB1(E),XP(c)
      • Refutation
        • K(b);N_SPINR(d),S_FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • P(c);::QAB1(E),XP(c)
      • B(a);N_PINS(C),SBLOCK::S(C)
      • S(f);N_PINS(C),SBLOCK::S(C)
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).