MESON Chess Problem Database

Problem Display
PID: 251276 (4RK2/1r1p4/3Q1p2/p2Nn1p1/Rb2k1P1/8/4BB2/8 w - - 0 1)

ten Cate, Pieter

Jerusalem Post, 1950

(First published on Fri May 26 1950)

4RK2/1r1p4/3Q1p2/p2Nn1p1/Rb2k1P1/8/4BB2/8

#2

8 + 8

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Rxe5#
  • Tries
    • 1.Sxb4?
      • threat
        • 2.Qd4#
      • 1...Kf4
        • 2.Sd3#
        • 2.Sd5#
        • 2.Qd4#
      • 1...Rxb4!
  • Keys
    • 1.Se7!
      • threat
        • 2.Qd4#
      • 1...Sg6+
        • 2.Sxg6#
      • 1...Kf4
        • 2.Qd4#
      • 1...Sf3
        • 2.Bd3#
      • 1...Sc6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • P(f);N_GUARD::R1(G),XS(d)
  • Tries
    • Try
      • S(E);N_SPINQ(F),XB(a)
      • Threat
        • QAR1(F)
      • Refutation
        • R(g);P_SPINR(g),XS(E)
  • Actual
    • S(E);N_PINS(d),N_SPINQ(F)
    • Threat
      • QAR1(F)
    • Vars
      • S(d);CHECK::R(G)+S(E),XS(d)
      • K(b);P-FLIGHT,P_SPINS(d)::QAR2(F)
      • S(d);N_GUARD,SBLOCK::B(A)
      • S(d);::R(G)+S(E),XS(d)
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).