MESON Chess Problem Database

Problem Display
PID: 129848 (8/8/3B4/1R5K/k2p4/1RqN4/8/8 w - - 0 1)

Hladik, Frantisek

Tyden rozhlasu, 1941

8/8/3B4/1R5K/k2p4/1RqN4/8/8

#2

5 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sc5#
    • 1...Qe1
      • 2.Sb2#
      • 2.Sc5#
    • 1...Qb2
      • 2.Sxb2#
      • 2.Sc5#
    • 1...Qd2
      • 2.Sc5#
    • 1...Qa5
      • 2.Sb2#
      • 2.Sc5#
    • 1...Qc4
      • 2.Sb2#
    • 1...Qc5+
      • 2.Sxc5#
    • 1...Qc6
      • 2.Sb2#
    • 1...Qc7
      • 2.Sb2#
    • 1...Qc8
      • 2.Sb2#
  • Tries
    • 1.R3b4+?
      • 1...Ka3
        • 2.Ra5#
      • 1...Qxb4!
  • Keys
    • 1.Bc7!
      • 1...Qc5+
        • 2.Sxc5#
      • 1...Qxb3
        • 2.Ra5#
      • 1...Qxd3
        • 2.R5b4#
      • 1...Qxc7
        • 2.Sb2#
      • 1...Qb4
        • 2.R5xb4#
      • 1...Qa1
        • 2.Sc5#
        • 2.R5b4#
      • 1...Qe1
        • 2.Sb2#
        • 2.Sc5#
      • 1...Qb2
        • 2.Sxb2#
        • 2.Sc5#
        • 2.R5b4#
      • 1...Qd2
        • 2.Sc5#
      • 1...Qa5
        • 2.Sb2#
        • 2.Sc5#
      • 1...Qc1
        • 2.R5b4#
      • 1...Qc2
        • 2.R5b4#
      • 1...Qc4
        • 2.Sb2#
      • 1...Qc6
        • 2.Sb2#
        • 2.R5b4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • Q(a);N_GUARD::S(B)
    • Q(a);CHECK,N_GUARD::S(B),XQ(a)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • Q(a);XR(A)
  • Actual
    • B(E);
    • Vars
      • Q(a);CHECK,N_GUARD::S(B),XQ(a)
      • Q(a);N_GUARD,SBLOCK,XR(A)::R1(C)
      • Q(a);N_GUARD,XS(B)::R1(C)
      • Q(a);N_GUARD,XB(E)::S(B)
      • Q(a);N_GUARD::R1(C),XQ(a)
      • Q(a);N_GUARD::S(B)
      • Q(a);N_GUARD::R1(C)
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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).