MESON Chess Problem Database

Problem Display
PID: 178082 (2Nrkb2/2n2p2/2p5/2PpN3/2p5/2P2p2/2KPRP2/8 w - - 0 1)

Kondelik, Charles

Chicago Mirror, 1885

2Nrkb2/2n2p2/2p5/2PpN3/2p5/2P2p2/2KPRP2/8

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sg4+?
      • 1...Kd7
        • 2.Sb6#
      • 1...Se6
        • 2.Sf6#
      • 1...fxe2
        • 2.Sf6#
      • 1...Be7!
  • Keys
    • 1.Sd7+!
      • 1...Kxd7
        • 2.Sb6#
      • 1...Be7
        • 2.Rxe7#
      • 1...Se6
        • 2.Sf6#
      • 1...fxe2
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(h);S_FLIGHT::S(H)
        • S(e);P_SPINS(e)::S(G)
        • P(a);XR(C)::S(G)
      • Refutation
        • B(i);P_SPINB(i)
  • Actual
    • S(G);CHECK
    • Vars
      • K(h);S_FLIGHT,XS(G)::S(H)
      • B(i);N_GUARD,P_SPINB(i)::R1(C),XB(i)
      • S(e);P_SPINS(e)::S(G)
      • P(a);XR(C)::S(G)
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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).