MESON Chess Problem Database

Problem Display
PID: 194103 (5Q2/8/8/4p3/4PR2/4k2K/1B6/b5N1 w - - 0 1)

Grabowski, Kazimierz

Tidskrift for Schack, 1917

5Q2/8/8/4p3/4PR2/4k2K/1B6/b5N1

#2

6 + 3

6490 yacpdb 2019
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Rf3+?
      • 1...Kxe4
        • 2.Qa8#
      • 1...Kd2!
  • Keys
    • 1.Qb4!
      • threat
        • 2.Rf3#
      • 1...Kd3
        • 2.Qc3#
      • 1...Kxf4
        • 2.Bc1#
      • 1...exf4
        • 2.Qd4#

Anticipated by 41486(1899)

This anticipates 194106(1917)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(D)::QAB(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • R1(E)
    • Vars
      • K(b);P-FLIGHT::QAR1(F)
      • K(b);S_FLIGHT,XR(E)::B(B)
      • P(c);N_GUARD,SBLOCK,XR(E)::QAB1(F)
HTML5 logo

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).