MESON Chess Problem Database

Problem Display
PID: 231529 (8/8/8/5p2/3Q4/5Pk1/6P1/6K1 w - - 0 1)

Pikler, Robert

Magyar Sakkvilag, 1927

8/8/8/5p2/3Q4/5Pk1/6P1/6K1

#2

4 + 2

6490 yacpdb 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Qf2#
  • Tries
    • 1.Kf1?
      • 1...Kh2
        • 2.Qh4#
      • 1...f4!
    • 1.Qe3?
      • threat
        • 2.Qg5#
      • 1...f4
        • 2.Qf2#
        • 2.Qe1#
      • 1...Kh4!
    • 1.Qe5+?
      • 1...f4
        • 2.Qe1#
        • 2.Qg5#
      • 1...Kh4!
    • 1.Qd2?
      • threat
        • 2.Qg5#
      • 1...f4
        • 2.Qe1#
        • 2.Qf2#
      • 1...Kh4!
    • 1.Qe4?
      • 1...f4
        • 2.Qe1#
      • 1...fxe4!
  • Keys
    • 1.Qb4!
      • 1...f4
        • 2.Qe1#

Anticipated by 78303(1844)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::QAB1(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(D)
      • Refutation
        • P(b);
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR2(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • P(b);SBLOCK::QAB(D)
      • Refutation
        • P(b);XQ(D)
  • Actual
    • Q(D);
    • Vars
      • P(b);SBLOCK::QAB(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).