MESON Chess Problem Database

Problem Display
PID: 101226 (2K2QBb/8/8/1p3N1p/R1pnk1bR/1q3p2/4P2B/4N3 w - - 0 1)

Seplowin, Samuel

Good Companions, 1918

2K2QBb/8/8/1p3N1p/R1pnk1bR/1q3p2/4P2B/4N3

#2

9 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.exf3#
  • Tries
    • 1.Qe7+?
      • 1...Kxf5
        • 2.Bh7#
      • 1...Be5
        • 2.Qxe5#
      • 1...Se6!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qd5#
      • 1...Sxf5
        • 2.Bd5#
      • 1...Be5
        • 2.Qxe5#
      • 1...Se6
        • 2.Sd6#
      • 1...c3
        • 2.exf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);P_SPINS(d),S_CUTQ(a)::P(B),XP(b)
  • Tries
    • Try
      • Q(H);CHECK
      • Vars
        • K(e);N_SPINB(f),S_FLIGHT,XS(F)::B(I)
        • B(i);N_GUARD::QAR1(H),XB(i)
      • Refutation
        • S(d);N_PINS(F),P_SPINP(c),P_SPINS(d)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • S(d);P_SPINP(c),SBLOCK,XS(F)::B(I)
      • B(i);N_GUARD::QAR1(H),XB(i)
      • S(d);N_PINS(F),P_SPINP(c)::S(F)
      • P(c);P_SPINS(d),S_CUTQ(a)::P(B),XP(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).