MESON Chess Problem Database

Problem Display
PID: 218515 (1KN5/8/2PpP1P1/3kp1P1/PP3p2/3N1P2/P4B2/1B5Q w - - 0 1)

Burlingame, EE

Cincinnati Commercial, 1881

1KN5/8/2PpP1P1/3kp1P1/PP3p2/3N1P2/P4B2/1B5Q

#2

14 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Se7#
  • Tries
    • 1.Sb6+?
      • 1...Kxc6
        • 2.Qc1#
        • 2.b5#
      • 1...Kxe6!
    • 1.Se7+?
      • 1...Kc4
        • 2.Qc1#
      • 1...Kxe6!
  • Keys
    • 1.Qe1!
      • 1...Kc4
        • 2.Sb6#
      • 1...Kxc6
        • 2.Se7#
      • 1...Kxe6
        • 2.Sxf4#
      • 1...e4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);S_FLIGHT,XP(J)::S(N)
  • Tries
    • Try
      • S(N);CHECK
      • Refutation
        • K(b);S_FLIGHT,XP(K)
    • Try
      • S(N);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR(B)
      • Refutation
        • K(b);S_FLIGHT,XP(K)
  • Actual
    • Q(B);
    • Vars
      • K(b);S_FLIGHT::S(N)
      • K(b);S_FLIGHT,XP(J)::S(N)
      • K(b);P_SPINP(c),S_FLIGHT,XP(K)::S(E),XP(a)
      • P(c);::QAB1(B),XP(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).