MESON Chess Problem Database

Problem Display
PID: 227765 (8/8/6Q1/4k3/p7/B3K3/8/8 w - - 0 1)

Pikler, Robert

Magyar Sakkvilag, 1926

8/8/6Q1/4k3/p7/B3K3/8/8

#2

3 + 2

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qe4#
  • Tries
    • 1.Kd3?
      • 1...Kd5
        • 2.Qe4#
        • 2.Qd6#
      • 1...Kf4!
    • 1.Kf3?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kd4!
    • 1.Bb4?
      • 1...Kd5
        • 2.Qe4#
      • 1...a3!
    • 1.Bf8?
      • 1...Kd5
        • 2.Qe4#
      • 1...a3!
    • 1.Qg4?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kf6!
  • Keys
    • 1.Be7!
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • P(a);
    • Try
      • Q(C);
      • Vars
        • K(b);P-FLIGHT::QAB1(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • B(A);
    • Threat
      • QAR1(C)
    • Vars
      • K(b);P-FLIGHT::QAB1(C)
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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).