MESON Chess Problem Database

Problem Display
PID: 23175 (1b2Q3/1kp5/8/2B5/8/1K6/R7/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

1b2Q3/1kp5/8/2B5/8/1K6/R7/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ba7
      • 2.Rxa7#
  • Tries
    • 1.Kb2?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Kc2?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Kc3?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Kb4?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Kc4?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Ra1?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Ra3?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Ra4?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Ra5?
      • 1...Ba7
        • 2.Rxa7#
      • 1...c6!
    • 1.Ra6?
      • 1...c6
        • 2.Qxc6#
      • 1...Ba7
        • 2.Rxa7#
      • 1...Kxa6!
  • Keys
    • 1.Ra8!
      • 1...Kxa8
        • 2.Qc6#
      • 1...c6
        • 2.Qxb8#
      • 1...Ba7
        • 2.Rxa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::R1(A),XB(c)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • K(B);S_FLIGHT
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • K(B);P-FLIGHT
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • K(B);P-FLIGHT
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • K(B);S_FLIGHT
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • P(b);
    • Try
      • R(A);
      • Vars
        • P(b);::QAB1(D),XP(b)
        • B(c);N_GUARD::R1(A),XB(c)
      • Refutation
        • K(a);S_FLIGHT,XR(A)
  • Actual
    • R(A);
    • Vars
      • K(a);P_SPINB(c),S_FLIGHT,XR(A)::QAB(D)
      • P(b);SBLOCK::QAR1(D),XB(c)
      • B(c);N_GUARD::R1(A),XB(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).