MESON Chess Problem Database

Problem Display
PID: 100030 (8/5p2/5Q2/8/4k3/1BP5/5K2/8 w - - 0 1)

Kovacs, Nandor

Neukomm, Gyula (Julius) R

Onitiu, Valerian

Talaber, Laszlo

Magyar Sakkvilag, 1932

8/5p2/5Q2/8/4k3/1BP5/5K2/8

#2

4 + 2

6490 yacpdb 2009
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qd4#
  • Tries
    • 1.Ke1?
      • 1...Kd3
        • 2.Qd4#
        • 2.Qf3#
      • 1...Ke3!
    • 1.Kf1?
      • 1...Kd3
        • 2.Qd4#
      • 1...Ke3!
    • 1.Bd1?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kd5!
    • 1.Ba4?
      • 1...Kd3
        • 2.Qd4#
      • 1...Kd5!
    • 1.Qe5+?
      • 1...Kd3
        • 2.Qd4#
        • 2.Qe3#
      • 1...Kxe5!
    • 1.Qf4+?
      • 1...Kd3
        • 2.Qe3#
        • 2.Qd4#
      • 1...Kxf4!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Bc2#
      • 1...Kd3
        • 2.Qe3#
      • 1...f5
        • 2.Qe3#

Anticipated by 88409(1931)

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAR1(D)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);P-FLIGHT,XQ(D)
  • Actual
    • Q(D);
    • Threat
      • B(B)
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • P(b);SBLOCK::QAR1(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).