MESON Chess Problem Database

Problem Display
PID: 181841 (3r4/N7/8/3kP1R1/1P2R1Q1/nnP3K1/4P3/8 w - - 0 1)

van Dijk, Johannes

Utrecht Dagblad, 1905

3r4/N7/8/3kP1R1/1P2R1Q1/nnP3K1/4P3/8

#2

9 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.e6#
    • 1...Sb1
      • 2.c4#
    • 1...Sc2
      • 2.c4#
    • 1...Sb5
      • 2.c4#
    • 1...Sa1
      • 2.Rd4#
    • 1...Sc1
      • 2.Rd4#
    • 1...Sd2
      • 2.Rd4#
    • 1...Sd4
      • 2.Rxd4#
    • 1...Sa5
      • 2.Rd4#
    • 1...Sc5
      • 2.Rd4#
  • Keys
    • 1.Rf4!
      • 1...Sd4
        • 2.Rxd4#
      • 1...Rd7
        • 2.Qxd7#
      • 1...Rd6
        • 2.e6#
      • 1...Ra8
        • 2.Qd7#
      • 1...Rb8
        • 2.Qd7#
      • 1...Rc8
        • 2.Qd7#
      • 1...Re8
        • 2.Qd7#
      • 1...Rf8
        • 2.Qd7#
      • 1...Rg8
        • 2.Qd7#
      • 1...Rh8
        • 2.Qd7#
      • 1...Sb1
        • 2.c4#
      • 1...Sc2
        • 2.c4#
      • 1...Sc4
        • 2.e4#
      • 1...Sb5
        • 2.c4#
      • 1...Sa1
        • 2.Rd4#
      • 1...Sc1
        • 2.Rd4#
      • 1...Sd2
        • 2.Rd4#
      • 1...Sa5
        • 2.Rd4#
      • 1...Sc5
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • R(d);SBLOCK::R(H)+P(G)
    • S(a);N_GUARD::P(B)
    • S(b);N_GUARD::R1(E)
    • S(b);N_GUARD::R1(E),XS(b)
  • Actual
    • R(E);
    • Vars
      • S(b);N_GUARD::R1(E),XS(b)
      • R(d);N_GUARD::QAR2(F),XR(d)
      • R(d);SBLOCK::R(H)+P(G)
      • R(d);N_GUARD::QAR2(F)
      • S(a);N_GUARD::P(B)
      • S(a);SBLOCK::P(A)
      • S(b);N_GUARD::R1(E)
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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).