MESON Chess Problem Database

Problem Display
PID: 182310 (8/1R6/6R1/8/2P2PP1/8/3K2kp/Q6N w - - 0 1)

van Dijk, Johannes

Alkmaarsche Courant, 1906

8/1R6/6R1/8/2P2PP1/8/3K2kp/Q6N

#2

8 + 2

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kd3?
      • 1...Kf3
        • 2.Qf1#
      • 1...Kh3!
    • 1.Re7?
      • 1...Kf3
        • 2.Qf1#
      • 1...Kh3!
    • 1.Rf7?
      • 1...Kf3
        • 2.Qa8#
      • 1...Kh3!
    • 1.Qe1?
      • 1...Kh3
        • 2.Qg3#
      • 1...Kf3!
  • Keys
    • 1.Qa8!
      • 1...Kf1
        • 2.Rb1#
      • 1...Kg1
        • 2.Rb1#
      • 1...Kxh1
        • 2.Rb1#
      • 1...Kf3
        • 2.Rf7#
      • 1...Kh3
        • 2.Rh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(H);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::R(H)
      • K(a);P-FLIGHT::R(H)
      • K(a);S_FLIGHT,XS(B)::QAB(A)+R(H),DCHECK
      • K(a);S_FLIGHT::QAB(A)+R(H)
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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).