MESON Chess Problem Database

Problem Display
PID: 48606 (8/4K3/8/Q1Npk3/7P/3B3P/3P4/8 w - - 0 1)

Taylor, Jesse Paul

American Ty., 0000

8/4K3/8/Q1Npk3/7P/3B3P/3P4/8

#2

7 + 2

5024 Elementary Chess Problems 1880
5454 Near Snap 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qc3#
    • 1...d4
      • 2.Se6#
  • Tries
    • 1.Sa4?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Sa6?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Sb7?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Sd7+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4!
    • 1.Bb1?
      • 1...Kd4
        • 2.Qc3#
      • 1...d4
        • 2.Se6#
      • 1...Kf4!
    • 1.Bc2?
      • 1...Kd4
        • 2.Qc3#
      • 1...d4
        • 2.Se6#
      • 1...Kf4!
    • 1.Bg6?
      • 1...Kd4
        • 2.Qc3#
      • 1...d4
        • 2.Sd3#
        • 2.Se6#
      • 1...Kf4!
    • 1.Bh7?
      • 1...Kd4
        • 2.Qc3#
      • 1...d4
        • 2.Sd3#
        • 2.Se6#
      • 1...Kf4!
    • 1.h5?
      • 1...Kd4
        • 2.Qc3#
      • 1...d4
        • 2.Se6#
      • 1...Kf4!
  • Keys
    • 1.Be4!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Qc7#
      • 1...dxe4
        • 2.Se6#
      • 1...d4
        • 2.Qc7#

This anticipates 137948(1892), 119994(1929)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT::QAB1(E)
    • P(a);::QAR(E)+S(F)
  • Tries
    • Try
      • S(F);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(F);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(F);P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • S(F);CHECK,P_PINP(a)
      • Vars
        • K(b);N_SPINP(a),S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • P(a);::QAR(E)+S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • P(a);::QAR(E)+S(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(b);S_FLIGHT::QAB1(E)
        • P(a);::QAR(E)+S(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(b);S_FLIGHT::QAB1(E)
      • K(b);S_FLIGHT::QAB(E)
      • P(a);SBLOCK,XB(B)::QAR(E)+S(F)
      • P(a);SBLOCK::QAB(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).