MESON Chess Problem Database

Problem Display
PID: 250476 (8/8/3p1nRp/1p2p1qP/2bb1Q2/1pPP3p/7N/R3K1kr w - - 0 1)

Voronin, Vladimir

Uralski Problemist, 2009

8/8/3p1nRp/1p2p1qP/2bb1Q2/1pPP3p/7N/R3K1kr

#2

8 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Sf3#
    • 1...Qg3+
      • 2.Qxg3#
    • 1...Rxh2
      • 2.Qf1#
    • 1...Bf2+
      • 2.Qxf2#
    • 1...Sg4
      • 2.Qg3#
  • Keys
    • 1.Rxg5+!
      • 1...Sg4
        • 2.Rxg4#
        • 2.Qg3#
      • 1...hxg5
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(i);::S(C)
    • Q(i);CHECK,N_GUARD::QAR2(F),XQ(i)
    • R(b);SBLOCK,XS(C)::QAR1(F)
    • B(f);CHECK,N_GUARD::QAB1(F),XB(f)
    • S(k);N_SPINQ(i),S_CUTQ(i)::QAR2(F)
  • Actual
    • R(H);CHECK,XQ(i)
    • Vars
      • P(l);XR(H)::QAR2(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).