MESON Chess Problem Database

Problem Display
PID: 75186 (7R/8/2K1k3/3N4/8/8/B1Q5/6b1 w - - 0 1)

Chepizhni, Viktor Ivanovich

Dyachuk, Vasyl Vasilovich

2nd HM., Amirov MT, 1998

7R/8/2K1k3/3N4/8/8/B1Q5/6b1

#2

5 + 2

6167 Viktor Chepizhny 2007
5454 Near Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Rh5?
      • threat
        • 2.Qf5#
        • 2.Qg6#
      • 1...Bd4
        • 2.Qf5#
      • 1...Kf7!
    • 1.Rh7?
      • threat
        • 2.Re7#
        • 2.Qe4#
      • 1...Bh2
        • 2.Re7#
      • 1...Bd4
        • 2.Re7#
      • 1...Bc5
        • 2.Qe4#
      • 1...Ke5!
    • 1.Rf8?
      • threat
        • 2.Qe4#
        • 2.Qf5#
      • 1...Bh2
        • 2.Qf5#
      • 1...Bd4
        • 2.Qf5#
      • 1...Ke5!
    • 1.Qf2?
      • threat
        • 2.Re8#
        • 2.Qf6#
      • 1...Ke5
        • 2.Re8#
      • 1...Bxf2!
  • Keys
    • 1.Bb1!
      • threat
        • 2.Qf5#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kf7
        • 2.Qg6#

This anticipates 179756(2011)

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB1(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::R1(E)
        • B(a);::QAR2(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::QAB1(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::R(E)
      • Refutation
        • B(a);XQ(B)
  • Actual
    • B(A);
    • Threat
      • QAB1(B)
    • Vars
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);S_FLIGHT::QAB1(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).