MESON Chess Problem Database

Problem Display
PID: 176155 (8/8/1Q6/2rk4/1R3P2/4pK2/8/8 w - - 0 1)

Makuc, Drago

Schach-Echo, 1953

8/8/1Q6/2rk4/1R3P2/4pK2/8/8

#2

4 + 3

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Rd4#
    • 1...Rc2
      • 2.Rd4#
    • 1...Rc3
      • 2.Rd4#
    • 1...Ra5
      • 2.Rd4#
    • 1...Rb5
      • 2.Rd4#
    • 1...Rc7
      • 2.Rd4#
    • 1...Rc8
      • 2.Rd4#
  • Tries
    • 1.Qd8+?
      • 1...Kc6
        • 2.Rb6#
      • 1...Ke6!
  • Keys
    • 1.Re4!
      • threat
        • 2.Qe6#
      • 1...Rc6
        • 2.Qd4#
      • 1...Rc1
        • 2.Rd4#
      • 1...Rc2
        • 2.Rd4#
      • 1...Rc3
        • 2.Rd4#
      • 1...Rc4
        • 2.Re5#
      • 1...Ra5
        • 2.Rd4#
      • 1...Rb5
        • 2.Rd4#
      • 1...Rc7
        • 2.Rd4#
      • 1...Rc8
        • 2.Rd4#

Anticipated by 205553(1925), 16598(1941), 103986(1949)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(b);::R1(B)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);S_FLIGHT::R1(B)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(B);
    • Threat
      • QAB1(D)
    • Vars
      • R(b);OGATE,SBLOCK::QAR1(D)
      • R(b);::R1(B)
      • R(b);SBLOCK::R1(B)
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).