MESON Chess Problem Database

Problem Display
PID: 193372 (1R2N3/5n2/8/2k5/2r5/P3P2P/B5QK/8 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1914

1R2N3/5n2/8/2k5/2r5/P3P2P/B5QK/8

#2

8 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rc1
      • 2.Qd5#
    • 1...Rc2
      • 2.Qxc2#
    • 1...Rc3
      • 2.Qd5#
    • 1...Ra4
      • 2.Qd5#
    • 1...Rb4
      • 2.Qd5#
      • 2.axb4#
    • 1...Rf4
      • 2.Qd5#
    • 1...Rg4
      • 2.Qd5#
    • 1...Rh4
      • 2.Qd5#
  • Keys
    • 1.Qg6!
      • 1...Rc2+
        • 2.Qxc2#
      • 1...Kd5
        • 2.Rb5#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Rd4
        • 2.Qb6#
      • 1...Rc1
        • 2.Qb6#
      • 1...Rc3
        • 2.Qb6#
      • 1...Ra4
        • 2.Qb6#
      • 1...Rb4
        • 2.axb4#
      • 1...Re4
        • 2.Qb6#
      • 1...Rf4
        • 2.Qb6#
      • 1...Rg4
        • 2.Qb6#
      • 1...Rh4
        • 2.Qb6#
      • 1...Se5
        • 2.Qd6#
      • 1...Sg5
        • 2.Qd6#
      • 1...Sh6
        • 2.Qd6#
      • 1...Sd8
        • 2.Qd6#
      • 1...Sh8
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 6
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • R(a);::QAR1(B)
    • R(a);OGATEB,P_PINQ(B)::QAR(B),XR(a)
    • R(a);P_PINP(F)::QAR1(B)
  • Actual
    • Q(B);
    • Vars
      • R(a);CHECK,OGATEB::QAR(B),XR(a)
      • K(b);P-FLIGHT,P_SPINR(a)::R(G)
      • S(c);N_GUARD::QAB1(B),XS(c)
      • R(a);::QAB1(B)
      • R(a);OGATE::P(D),XR(a)
      • R(a);P_PINP(F)::QAB1(B)
      • S(c);N_GUARD::QAB1(B)
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).