MESON Chess Problem Database

Problem Display
PID: 201347 (1R6/8/2K5/k7/8/8/1N6/8 w - - 0 1)

Mortimer, Ernest Clement

Chess Amateur (The), 1922

1R6/8/2K5/k7/8/8/1N6/8

#2

3 + 1

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ka6
      • 2.Ra8#
  • Tries
    • 1.Sd1?
      • 1...Ka6
        • 2.Ra8#
      • 1...Ka4!
    • 1.Sd3?
      • threat
        • 2.Ra8#
      • 1...Ka6
        • 2.Ra8#
      • 1...Ka4!
    • 1.Sa4?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kxa4!
    • 1.Sc4+?
      • 1...Ka6
        • 2.Ra8#
      • 1...Ka4!
    • 1.Rb4?
      • threat
        • 2.Ra4#
      • 1...Ka6
        • 2.Ra4#
      • 1...Kxb4!
    • 1.Rc8?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kb4!
    • 1.Rd8?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kb4!
    • 1.Re8?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kb4!
    • 1.Rf8?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kb4!
    • 1.Rg8?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kb4!
    • 1.Rh8?
      • 1...Ka6
        • 2.Ra8#
      • 1...Kb4!
  • Keys
    • 1.Rb3!
      • 1...Ka6
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(C)
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);
      • Threat
        • R(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • S(A);CHECK
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(C);
    • Vars
      • K(a);P-FLIGHT::R(C)
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).