MESON Chess Problem Database

Problem Display
PID: 15625 (8/8/8/3K4/8/2pkP3/4R2Q/4r3 w - - 0 1)

Lincoln, Robert A

Newark Star-Ledger, 1986

8/8/8/3K4/8/2pkP3/4R2Q/4r3

#2

4 + 3

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Tries
    • 1.Rb2?
      • 1...Kxe3
        • 2.Qg3#
      • 1...Rxe3
        • 2.Qc2#
      • 1...c2
        • 2.Rb3#
      • 1...Ra1
        • 2.Qe2#
      • 1...Rb1
        • 2.Qe2#
      • 1...Rc1
        • 2.Qe2#
      • 1...Rd1
        • 2.Qe2#
      • 1...Rf1
        • 2.Qe2#
      • 1...Rg1
        • 2.Qe2#
      • 1...Rh1
        • 2.Qe2#
      • 1...Re2
        • 2.Qxe2#
      • 1...cxb2!
    • 1.Rc2?
      • 1...Kxe3
        • 2.Rxc3#
        • 2.Qg3#
      • 1...Re2
        • 2.Qxe2#
      • 1...Ra1
        • 2.Qe2#
      • 1...Rb1
        • 2.Qe2#
      • 1...Rc1
        • 2.Qe2#
      • 1...Rd1
        • 2.Qe2#
      • 1...Rf1
        • 2.Qe2#
      • 1...Rg1
        • 2.Qe2#
      • 1...Rh1
        • 2.Qe2#
      • 1...Rxe3!
    • 1.Rd2+?
      • 1...Kxe3
        • 2.Qf2#
      • 1...cxd2!
  • Keys
    • 1.Ra2!
      • 1...Kxe3
        • 2.Qg3#
      • 1...Rxe3
        • 2.Qc2#
      • 1...c2
        • 2.Ra3#
      • 1...Ra1
        • 2.Qe2#
      • 1...Rb1
        • 2.Qe2#
      • 1...Rc1
        • 2.Qe2#
      • 1...Rd1
        • 2.Qe2#
      • 1...Rf1
        • 2.Qe2#
      • 1...Rg1
        • 2.Qe2#
      • 1...Rh1
        • 2.Qe2#
      • 1...Re2
        • 2.Qxe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(C)::QAR2(B)
        • R(a);SBLOCK,XP(C)::QAB1(B)
        • P(b);OGATEB::R(A)
        • R(a);N_GUARD::QAB1(B)
        • R(a);N_GUARD::QAB1(B),XR(a)
      • Refutation
        • P(b);XR(A)
    • Try
      • R(A);
      • Vars
        • R(a);N_GUARD::QAB1(B),XR(a)
        • R(a);N_GUARD::QAB1(B)
      • Refutation
        • R(a);XP(C)
    • Try
      • R(A);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(C)::QAB1(B)
      • Refutation
        • P(b);XR(A)
  • Actual
    • R(A);
    • Vars
      • K(c);OGATEB,P-FLIGHT,XP(C)::QAR2(B)
      • R(a);SBLOCK,XP(C)::QAB1(B)
      • P(b);OGATEB::R(A)
      • R(a);N_GUARD::QAB1(B)
      • R(a);N_GUARD::QAB1(B),XR(a)
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).