MESON Chess Problem Database

Problem Display
PID: 77632 (8/8/2R1NK2/3k4/B7/8/8/8 w - - 0 1)

Zanco, Vittorio

Il Due Mosse, 1957

8/8/2R1NK2/3k4/B7/8/8/8

#2

4 + 1

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rc1?
      • 1...Kd6
        • 2.Rd1#
      • 1...Ke4!
    • 1.Rc2?
      • 1...Kd6
        • 2.Rd2#
      • 1...Ke4!
    • 1.Rc4?
      • threat
        • 2.Rd4#
      • 1...Kd6
        • 2.Rd4#
      • 1...Kxc4!
    • 1.Rc7?
      • 1...Kd6
        • 2.Rd7#
      • 1...Ke4!
    • 1.Rc8?
      • 1...Kd6
        • 2.Rd8#
      • 1...Ke4!
  • Keys
    • 1.Rc3!
      • 1...Ke4
        • 2.Bc6#
      • 1...Kd6
        • 2.Rd3#

This anticipates 87621(1966)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);P-FLIGHT::R(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).