MESON Chess Problem Database

Problem Display
PID: 135628 (2K5/8/1p6/8/k2N4/2R5/N7/R7 w - - 0 1)

Lincoln, Robert A

StrateGems, 2010

2K5/8/1p6/8/k2N4/2R5/N7/R7

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Ka5
      • 2.Ra3#
  • Tries
    • 1.Kb7?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Kc7?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Kd7?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Kb8?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Kd8?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Sc6?
      • 1...b5
        • 2.Sc1#
        • 2.Sab4#
      • 1...Kb5!
    • 1.Rb1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rac1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rd1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Re1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rf1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rg1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rh1?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rd3?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Re3?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rf3?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rg3?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rh3?
      • 1...Ka5
        • 2.Ra3#
      • 1...b5!
    • 1.Rc4+?
      • 1...Ka5
        • 2.Sc1#
        • 2.Sc3#
        • 2.Sb4#
      • 1...Ka3!
    • 1.Rc7?
      • threat
        • 2.Ra7#
      • 1...Ka5
        • 2.Ra7#
      • 1...Ka3!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Sc1#
        • 2.Sc3#
        • 2.Sb4#
      • 1...Ka5
        • 2.Sc1#
        • 2.Sc3#
        • 2.Sb4#
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • K(a);P-FLIGHT::R(C)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • S(D);
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • P(b);
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • R(C)
      • Vars
        • K(a);P-FLIGHT::R(C)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • R(C);
    • Threat
      • DUALS(3)
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).