MESON Chess Problem Database

Problem Display
PID: 184865 (8/8/8/3P4/2p1pN1Q/1pB1k2P/1K4PP/4N1n1 w - - 0 1)

Jewetsky, Feodor Orestovich

125 Shakhmaty Zadachi (Eventski), 1908

8/8/8/3P4/2p1pN1Q/1pB1k2P/1K4PP/4N1n1

#2

9 + 5

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Sxh3
      • 2.Qg3#
  • Tries
    • 1.d6?
      • 1...Sxh3
        • 2.Qg3#
      • 1...Se2
        • 2.Sd5#
      • 1...Sf3!
  • Keys
    • 1.g4!
      • 1...Kxf4
        • 2.Qh6#
      • 1...Sxh3
        • 2.Qg3#
      • 1...Se2
        • 2.Sfg2#
      • 1...Sf3
        • 2.Seg2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,XP(F)::QAR2(H)
  • Tries
    • Try
      • P(I);
      • Vars
        • S(a);N_GUARD,XP(F)::QAR2(H)
        • S(a);SBLOCK::S(G)
      • Refutation
        • S(a);
  • Actual
    • P(C);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(G)::QAB(H)
      • S(a);N_GUARD,XP(F)::QAR2(H)
      • S(a);SBLOCK::S(G)
      • S(a);SBLOCK::S(A)
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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).