MESON Chess Problem Database

Problem Display
PID: 10873 (8/2P5/3R2Q1/8/Pk6/6K1/4R3/8 w - - 0 1)

Lindgren, Bo Waldemar

Probleemblad, 1969

8/2P5/3R2Q1/8/Pk6/6K1/4R3/8

#2

6 + 1

17145 Svenska Miniatyrer i urval (Froberg/Hultberg) 1978
3295 Einfuhrung in die Welt des Schachproblem 1984

SOLUTION

  • SOUND
  • Tries
    • 1.Rb2+?
      • 1...Kc3
        • 2.Qc2#
      • 1...Kxa4
        • 2.Ra6#
      • 1...Kc4
        • 2.Qc2#
        • 2.c8Q#
        • 2.c8R#
      • 1...Ka5
        • 2.Ra6#
      • 1...Kc5
        • 2.c8Q#
        • 2.c8R#
      • 1...Ka3!
    • 1.Qb1+?
      • 1...Ka3
        • 2.Ra2#
      • 1...Kc3
        • 2.Rc2#
        • 2.c8Q#
        • 2.c8R#
      • 1...Kxa4
        • 2.Ra2#
        • 2.Ra6#
      • 1...Kc4
        • 2.Rc2#
        • 2.c8Q#
        • 2.c8R#
      • 1...Ka5
        • 2.Qb5#
      • 1...Kc5!
    • 1.Qd3?
      • 1...Ka5
        • 2.Qb5#
      • 1...Kc5
        • 2.Qd4#
      • 1...Kxa4!
    • 1.Qe4+?
      • 1...Ka3
        • 2.Rd3#
      • 1...Kb3
        • 2.Rd3#
      • 1...Kc3
        • 2.Rd3#
      • 1...Kc5
        • 2.Rc6#
        • 2.Qd4#
      • 1...Ka5!
    • 1.Qg4+?
      • 1...Ka3
        • 2.Rd3#
      • 1...Kb3
        • 2.Rd3#
      • 1...Ka5
        • 2.Re5#
      • 1...Kc5
        • 2.Qd4#
      • 1...Kc3!
  • Keys
    • 1.Rd4+!
      • 1...Ka3
        • 2.Qd3#
      • 1...Kb3
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Ka5
        • 2.Re5#
      • 1...Kc5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);P-FLIGHT,XP(C)::R(D)
        • K(a);S_FLIGHT::R1(D)
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(A)
        • K(a);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);S_FLIGHT::QAR1(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R(D)
        • K(a);P-FLIGHT::R(D)
        • K(a);S_FLIGHT::R1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);S_FLIGHT::R(D)
        • K(a);P-FLIGHT::R(D)
        • K(a);S_FLIGHT::R(A)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(D);CHECK
    • Vars
      • K(a);S_FLIGHT::QAR(E)
      • K(a);P-FLIGHT::QAR2(E)
      • K(a);S_FLIGHT::QAR1(E)
      • K(a);S_FLIGHT::R(A)
      • K(a);S_FLIGHT::QAB1(E)
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).