MESON Chess Problem Database

Problem Display
PID: 207040 (8/2N5/3n4/4R3/qb1k4/5K2/1Pr5/4Q3 w - - 0 1)

Vavra, Emanuel

Rodinna kronika, 1863

8/2N5/3n4/4R3/qb1k4/5K2/1Pr5/4Q3

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rc4
      • 2.Rd5#
      • 2.Qe3#
    • 1...Sc4
      • 2.Rd5#
      • 2.Qe4#
    • 1...Se4
      • 2.Qxe4#
    • 1...Sb5
      • 2.Qe4#
    • 1...Sf5
      • 2.Qe4#
    • 1...Sb7
      • 2.Qe4#
    • 1...Sf7
      • 2.Qe4#
    • 1...Sc8
      • 2.Qe4#
    • 1...Se8
      • 2.Qe4#
  • Keys
    • 1.Qh4+!
      • 1...Kd3
        • 2.Rd5#
      • 1...Kxe5
        • 2.Qf4#
      • 1...Se4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • S(e);N_GUARD::QAR1(A),XS(e)
    • S(e);N_GUARD::QAR1(A)
  • Actual
    • Q(A);CHECK
    • Vars
      • K(d);P-FLIGHT::R(D)
      • K(d);S_FLIGHT,XR(D)::QAB1(A)
      • S(e);N_GUARD,P_SPINS(e)::QAR1(A),XS(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).