MESON Chess Problem Database

Problem Display
PID: 40971 (8/b7/Q1p5/7B/6r1/4p1BN/1R2P1PK/4Nk2 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize, Rossomakho(Y)-64 JT, 2000

8/b7/Q1p5/7B/6r1/4p1BN/1R2P1PK/4Nk2

#2

9 + 5

5454 Near Snap 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sd3?
      • threat
        • 2.Qa1#
      • 1...Ra4
        • 2.Rb1#
      • 1...Rc4!
    • 1.Rb1?
      • threat
        • 2.Sc2#
        • 2.Sf3#
      • 1...Rc4
        • 2.Sc2#
      • 1...Rd4
        • 2.Sd3#
      • 1...Rb4!
    • 1.Qa1?
      • threat
        • 2.Sd3#
        • 2.Sf3#
      • 1...Rc4
        • 2.Sc2#
      • 1...Rd4
        • 2.Sd3#
      • 1...Ra4!
  • Keys
    • 1.Sc2!
      • threat
        • 2.Rb1#
      • 1...Rb4
        • 2.Qa1#
      • 1...Rd4
        • 2.Sxe3#

Anticipated by 255639(1984), 15647(1986)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • QAR(I)
      • Vars
        • R(c);::R(B)
      • Refutation
        • R(c);
    • Try
      • R(B);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::R(B)+S(A)
      • Refutation
        • R(c);
    • Try
      • Q(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(c);::QAR(I)+S(A)
      • Refutation
        • R(c);
  • Actual
    • S(A);
    • Threat
      • R(B)
    • Vars
      • R(c);::QAR(I)
      • R(c);S_CUTB(e)::S(A),XP(b)
HTML5 logo

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).