MESON Chess Problem Database

Problem Display
PID: 50651 (8/Q7/2p1p1N1/2p5/3k4/5P2/1P2B3/3K2b1 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

New Zealand Mail, 1897

8/Q7/2p1p1N1/2p5/3k4/5P2/1P2B3/3K2b1

#2

6 + 5

3262 700 Chess Problems 1902

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Qxc5#
    • 1...Kd5
      • 2.Qd7#
    • 1...Be3
      • 2.Qd7#
  • Tries
    • 1.Qg7+?
      • 1...Kd5
        • 2.Qe5#
        • 2.Qd7#
      • 1...e5
        • 2.Qxe5#
      • 1...Ke3!
    • 1.b4?
      • threat
        • 2.Qxc5#
      • 1...Ke3
        • 2.Qxc5#
      • 1...Kd5
        • 2.Qd7#
      • 1...Kc3!
  • Keys
    • 1.Qa5!
      • threat
        • 2.Qd2#
      • 1...Ke3
        • 2.Qxc5#
      • 1...Kd5
        • 2.Qd8#
      • 1...Be3
        • 2.Qd8#
      • 1...c4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB(F),XP(c)
    • K(b);N_SPINP(c),P-FLIGHT::QAR2(F)
    • B(a);SBLOCK::QAR(F)
  • Tries
    • Try
      • Q(F);CHECK,N_PINP(c)
      • Vars
        • P(e);P_SPINP(e)::QAB1(F),XP(e)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);
      • Threat
        • QAB1(F),XP(c)
      • Vars
        • K(b);S_FLIGHT::QAB(F),XP(c)
        • K(b);N_SPINP(c),P-FLIGHT::QAR2(F)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
  • Actual
    • Q(F);N_PINP(c)
    • Threat
      • QAR2(F)
    • Vars
      • K(b);S_FLIGHT::QAB(F),XP(c)
      • K(b);P-FLIGHT,P_SPINP(c)::QAR(F)
      • B(a);SBLOCK::QAR(F)
      • P(c);OGATE::QAB1(F)
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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).