MESON Chess Problem Database

Problem Display
PID: 219433 (8/R7/8/8/8/6pp/6k1/K3Q2b w - - 0 1)

Kashcheev, Niktopolion Pavlovich

Land og Folk, 1977

8/R7/8/8/8/6pp/6k1/K3Q2b

#2

3 + 4

15148 Sadier Collection 2020
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Rf7?
      • 1...h2
        • 2.Qf1#
      • 1...Kh2!
    • 1.Rg7?
      • 1...Kh2
        • 2.Qxg3#
      • 1...h2
        • 2.Rxg3#
      • 1...Kf3!
  • Keys
    • 1.Ra3!
      • 1...Kh2
        • 2.Qxg3#
      • 1...h2
        • 2.Rxg3#

Anticipated by 216439(1975)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • P(d);SBLOCK::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAB1(B),XP(c)
        • P(d);SBLOCK::R1(C),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(b);P-FLIGHT::QAB1(B),XP(c)
      • P(d);SBLOCK::R1(C),XP(c)
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).