MESON Chess Problem Database

Problem Display
PID: 93739 (1Kn5/8/1B6/3Rpp2/4kn2/2p3rN/Q7/8 w - - 0 1)

Cisar, Vaclav

Ceske listy sachove, 1897

1Kn5/8/1B6/3Rpp2/4kn2/2p3rN/Q7/8

#2

5 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Sg5#
    • 1...Re3
      • 2.Sg5#
    • 1...Rf3
      • 2.Sg5#
      • 2.Qc4#
    • 1...Rg5
      • 2.Sxg5#
  • Keys
    • 1.Rd3!
      • threat
        • 2.Sf2#
        • 2.Qc4#
      • 1...Kxd3
        • 2.Sf2#
      • 1...Rxd3
        • 2.Sg5#
      • 1...Rxh3
        • 2.Qc4#
      • 1...Sxd3
        • 2.Qa8#
      • 1...Sxh3
        • 2.Qc4#
      • 1...Sxb6
        • 2.Sf2#
      • 1...Re3
        • 2.Rxe3#
      • 1...Rg2
        • 2.Re3#
        • 2.Qc4#
      • 1...Rf3
        • 2.Qc4#
      • 1...Se2
        • 2.Qd5#
      • 1...Sg2
        • 2.Qc4#
        • 2.Qd5#
      • 1...Sd5
        • 2.Qc4#
        • 2.Qxd5#
      • 1...Sh5
        • 2.Qc4#
        • 2.Qd5#
      • 1...Se6
        • 2.Qd5#
      • 1...Sg6
        • 2.Qc4#
        • 2.Qd5#
      • 1...Sd6
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 1
  • Sets
    • R(b);N_GUARD::S(B)
    • R(b);N_GUARD::S(B),XR(b)
  • Actual
    • R(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT,XR(C)::S(B)
      • R(b);N_GUARD,SBLOCK,XR(C)::S(B)
      • R(b);XS(B)::QAR2(A)
      • S(d);N_GUARD,SBLOCK,XR(C)::QAB(A)
      • S(d);XS(B)::QAR2(A)
      • S(g);XB(D)::S(B)
      • R(b);N_GUARD::R1(C),XR(b)
      • R(b);::QAR2(A)
      • S(d);N_GUARD::QAB1(A)
      • S(g);::S(B)
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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).