MESON Chess Problem Database

Problem Display
PID: 234977 (4r3/8/4P2N/3R4/2P1k3/n3P3/4K3/8 w - - 0 1)

Akimov, Nikolai Nikolaevich

64 Shakhmatnoe obozrenie, 2012

4r3/8/4P2N/3R4/2P1k3/n3P3/4K3/8

#2

6 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sg3#
        • 2.Sd6#
      • 1...Rxe6
        • 2.Sg3#
      • 1...Rd8
        • 2.Sg3#
      • 1...Rg8
        • 2.Sd6#
      • 1...Sb5
        • 2.Sg3#
      • 1...Sxc4!
    • 1.Sf7?
      • threat
        • 2.Sg5#
        • 2.Sd6#
        • 2.Re5#
      • 1...Rxe6
        • 2.Sg5#
      • 1...Rd8
        • 2.Sg5#
        • 2.Re5#
      • 1...Rg8
        • 2.Sd6#
        • 2.Re5#
      • 1...Sb5
        • 2.Sg5#
        • 2.Re5#
      • 1...Sxc4!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf2#
        • 2.Sf6#
        • 2.Re5#
      • 1...Rxe6
        • 2.Sf2#
      • 1...Sxc4
        • 2.Sf6#
      • 1...Rf8
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);XP(E)::S(F)
        • R(c);::S(F)
        • S(a);::S(F)
      • Refutation
        • S(a);XP(C)
    • Try
      • S(F);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);XP(E)::S(F)
      • Refutation
        • S(a);XP(C)
  • Actual
    • S(F);
    • Threat
      • DUALS(3)
    • Vars
      • R(c);XP(E)::S(F)
      • S(a);XP(C)::S(F)
      • R(c);::R1(D)
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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).