MESON Chess Problem Database

Problem Display
PID: 218541 (4rrk1/1q1p1nnp/4p1N1/4N1R1/1Pp2p2/p7/KB6/7R w - - 0 1)

Collamore, GA

Cincinnati Commercial, 1881

4rrk1/1q1p1nnp/4p1N1/4N1R1/1Pp2p2/p7/KB6/7R

#2

7 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se7+?
      • 1...Kh8
        • 2.S5g6#
      • 1...Rxe7!
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf6#
      • 1...Sxg5
        • 2.Sh6#
      • 1...Se5
        • 2.Sh6#
      • 1...Sd6
        • 2.Sh6#
      • 1...Sh6
        • 2.Sxh6#
      • 1...Sd8
        • 2.Sh6#
      • 1...Sh8
        • 2.Sh6#
      • 1...Sf5
        • 2.Se7#
      • 1...Sh5
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK,P_PINS(h)
      • Vars
        • K(l);N_SPINS(h),P-FLIGHT,P_SPINP(i)::S(E)
      • Refutation
        • R(j);XS(G)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • S(g);N_GUARD,XR(F)::S(E)
      • S(g);N_GUARD::S(E)
      • S(g);N_GUARD::S(E),XS(g)
      • S(h);::R(F)+S(G),DCHECK
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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).