MESON Chess Problem Database

Problem Display
PID: 177815 (4N3/3R1R2/1Kn1p1n1/4k3/1p2P2P/1pp1p1pp/2r1P1r1/1Q2N2B w - - 0 1)

Pankratiev, Aleksandr Nikolaevich

Sahs (Latvia), 1984

4N3/3R1R2/1Kn1p1n1/4k3/1p2P2P/1pp1p1pp/2r1P1r1/1Q2N2B

#2

10 + 12

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Sf3#
    • 1...Ra2
      • 2.Sf3#
    • 1...Rb2
      • 2.Sf3#
    • 1...Rd2
      • 2.Sf3#
    • 1...Rcxe2
      • 2.Sf3#
    • 1...Rg1
      • 2.Sd3#
    • 1...Rgxe2
      • 2.Sd3#
    • 1...Rf2
      • 2.Sd3#
    • 1...Rh2
      • 2.Sd3#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Sf3#
      • 1...Kd4
        • 2.Sf3#
      • 1...Rf2
        • 2.Sc4#
      • 1...Sd4
        • 2.Sd3#
      • 1...Sxh4!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sd3#
      • 1...Kf4
        • 2.Sd3#
      • 1...Rd2
        • 2.Sg4#
      • 1...Sf4
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • R(a);::S(B)
    • R(a);XP(D)::S(B)
    • R(b);::S(B)
    • R(b);XP(D)::S(B)
  • Tries
    • Try
      • S(J);
      • Threat
        • S(B)
      • Vars
        • K(i);S_FLIGHT::S(B)
        • R(b);::S(J)
        • S(j);SBLOCK::S(B)
      • Refutation
        • S(l);XP(F)
  • Actual
    • S(J);
    • Threat
      • S(B)
    • Vars
      • K(i);S_FLIGHT::S(B)
      • R(a);::S(J)
      • S(l);SBLOCK::S(B)
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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).