MESON Chess Problem Database

Problem Display
PID: 224686 (2B5/pp3p2/P2n1R2/1k1Np3/1P1PQ3/3P4/K7/8 w - - 0 1)

Windle, Lee

The Sunny South, 1887

2B5/pp3p2/P2n1R2/1k1Np3/1P1PQ3/3P4/K7/8

#2

9 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Bd7#
    • 1...Sxe4
      • 2.Bd7#
    • 1...Sf5
      • 2.Bd7#
    • 1...Se8
      • 2.Bd7#
    • 1...bxa6
      • 2.Bd7#
  • Tries
    • 1.Sc3+?
      • 1...Kxa6
        • 2.Rxd6#
        • 2.Qc6#
        • 2.Qxb7#
      • 1...Kb6
        • 2.Qxb7#
      • 1...Kxb4!
  • Keys
    • 1.dxe5!
      • 1...Ka4
        • 2.Sc3#
      • 1...Kxa6
        • 2.Qc4#
      • 1...Kc6
        • 2.Qc4#
      • 1...Sxe4
        • 2.Bd7#
      • 1...Sxc8
        • 2.Sc3#
      • 1...bxa6
        • 2.Bd7#
      • 1...Sc4
        • 2.Bd7#
      • 1...Sf5
        • 2.Sc3#
        • 2.Bd7#
      • 1...Se8
        • 2.Sc3#
        • 2.Bd7#
      • 1...b6
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(c);::B(I)
    • S(c);XQ(E)::B(I)
    • P(e);SBLOCK,XP(G)::B(I)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINS(c)::QAR1(E),XP(e)
      • Refutation
        • K(a);P-FLIGHT,XP(C)
  • Actual
    • P(D);XP(b)
    • Vars
      • K(a);S_FLIGHT::S(F)
      • K(a);P_SPINP(e),P_SPINS(c),S_FLIGHT,XP(G)::QAB(E)
      • K(a);P_SPINS(c),S_FLIGHT::QAR2(E)
      • S(c);XQ(E)::B(I)
      • S(c);XB(I)::S(F)
      • P(e);SBLOCK,XP(G)::B(I)
      • S(c);::B(I)
      • P(e);SBLOCK::S(F)
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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).