MESON Chess Problem Database

Problem Display
PID: 283413 (5B2/8/3N3Q/3kp3/1P6/8/4K3/8 w - - 0 1)

Petrasinovic, Petrasin

Seven Chess Notes (Sem Shakhmatiykh not), 2025

5B2/8/3N3Q/3kp3/1P6/8/4K3/8

#2

5 + 2

5454 Near Snap 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qd2#
  • Tries
    • 1.Qg6?
      • 1...Kd4
        • 2.Qd3#
      • 1...e4
        • 2.Qxe4#
      • 1...Kc6!
  • Keys
    • 1.Qh7!
      • 1...Kd4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ke6
        • 2.Qf7#
      • 1...e4
        • 2.Qxe4#

Anticipated by 250462(2009), 267422(2013), 257526(2021), 269857(2023)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,P-FLIGHT::QAR2(D)
  • Tries
    • Try
      • Q(D);
      • Vars
        • K(a);N_GUARD,P-FLIGHT::QAR1(D)
        • P(b);::QAB1(D),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR1(D)
      • K(a);N_GUARD,S_FLIGHT::QAB1(D)
      • P(b);::QAB1(D),XP(b)
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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).