MESON Chess Problem Database

Problem Display
PID: 225900 (6n1/2pr3q/5N2/B1k2r1R/PR6/1bKp4/1N6/7Q w - - 0 1)

Opalek, Cyril

Praca, 1950

6n1/2pr3q/5N2/B1k2r1R/PR6/1bKp4/1N6/7Q

#2

8 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Rb5#
  • Keys
    • 1.Rb6!
      • threat
        • 2.Rc6#
        • 2.Qc6#
      • 1...Bxa4
        • 2.Sxa4#
      • 1...cxb6
        • 2.Bb4#
      • 1...c6
        • 2.Rxc6#
        • 2.Qxc6#
      • 1...Rfd5
        • 2.Qg1#
      • 1...Rdd5
        • 2.Se4#
      • 1...Rd6
        • 2.Rb5#
      • 1...Bd5
        • 2.Sxd3#
      • 1...Se7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(f);SBLOCK::R1(E)
  • Actual
    • R(E);
    • Threat
      • DUALS(2)
    • Vars
      • B(a);XP(D)::S(B),XB(a)
      • P(e);SBLOCK,XR(E)::B(F)
      • R(d);S_CUTR(f)::QAB(A)
      • R(f);N_SPINR(d),SBLOCK::S(H)
      • R(f);SBLOCK::R1(E)
      • B(a);N_SPINR(d),S_CUTR(f)::S(B),XP(b)
      • S(h);S_CUTQ(g)::S(H),XR(f)
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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).