MESON Chess Problem Database

Problem Display
PID: 235109 (4B2K/4b1p1/7Q/1rpnPn2/1pP1kPPp/4P3/4N1P1/3RRN2 w - - 0 1)

Shanshin, Valery Yurevich

2nd Prize, Gaudium, 2019-2020

4B2K/4b1p1/7Q/1rpnPn2/1pP1kPPp/4P3/4N1P1/3RRN2

#2

13 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sxf4
      • 2.Qxf4#
  • Keys
    • 1.Sc1!
      • threat
        • 2.Sd2#
      • 1...Sdxe3
        • 2.Bc6#
      • 1...Sxf4
        • 2.Qxf4#
      • 1...Sfxe3
        • 2.Bg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(f);OGATE,XP(H)::QAR1(K),XS(f)
  • Actual
    • S(D);
    • Threat
      • S(C)
    • Vars
      • S(f);OGATEB,P_SPINS(f),XP(F)::B(L)
      • S(f);OGATE,XP(H)::QAR1(K),XS(f)
      • S(g);OGATEB,P_SPINS(g),XP(F)::B(L)
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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).