MESON Chess Problem Database

Problem Display
PID: 129873 (1K2n3/2p1p1p1/2R1P1R1/4k3/4b3/4Q3/8/8 w - - 0 1)

Owen, Leonard E

Eskilstuna Kuriren, 1914

1K2n3/2p1p1p1/2R1P1R1/4k3/4b3/4Q3/8/8

#2

5 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qc5#
    • 1...Kf5
      • 2.Qg5#
    • 1...Sd6
      • 2.Rc5#
    • 1...Sf6
      • 2.Rg5#
  • Tries
    • 1.Kb7?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kf5
        • 2.Qg5#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sd6+!
    • 1.Ka8?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kf5
        • 2.Qg5#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sd6!
    • 1.Kc8?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kf5
        • 2.Qg5#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sd6+!
  • Keys
    • 1.Ka7!
      • 1...Kd5
        • 2.Qc5#
      • 1...Kf5
        • 2.Qg5#
      • 1...Sd6
        • 2.Rc5#
      • 1...Sf6
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
    • S(f);SBLOCK::R(B)
    • S(f);SBLOCK::R(D)
  • Tries
    • Try
      • K(E);P-FLIGHT,P_SPINR(B)
      • Vars
        • K(b);N_PINR(B),N_SPINB(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
        • S(f);SBLOCK::R(D)
      • Refutation
        • S(f);CHECK
    • Try
      • K(E);P-FLIGHT,P_SPINR(B)
      • Vars
        • K(b);N_PINR(B),N_SPINB(a),P-FLIGHT::QAR1(A)
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
        • S(f);SBLOCK::R(D)
      • Refutation
        • S(f);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
        • S(f);SBLOCK::R(D)
      • Refutation
        • S(f);CHECK
  • Actual
    • K(E);S_FLIGHT
    • Vars
      • K(b);N_SPINB(a),P-FLIGHT::QAR1(A)
      • S(f);SBLOCK::R(B)
      • S(f);SBLOCK::R(D)
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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).