MESON Chess Problem Database

Problem Display
PID: 175502 (5K2/7N/5P1p/2B1k2P/6Pn/1Q3P1N/5pp1/4bqrn w - - 0 1)

Pradignat, Emile Leonard

Philadelphia Times, 1899

5K2/7N/5P1p/2B1k2P/6Pn/1Q3P1N/5pp1/4bqrn

#2

9 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qb8+?
      • 1...Ke6
        • 2.Qd6#
      • 1...Kd5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qe3#
        • 2.Qb8#
      • 1...Sg6+
        • 2.Sxg6#
      • 1...Kxf4
        • 2.Bd6#
      • 1...Sxf3
        • 2.Qe3#
      • 1...Qe2
        • 2.Qb8#
      • 1...Qd3
        • 2.Sxd3#
      • 1...Qc4
        • 2.Qb8#
      • 1...Qb5
        • 2.Qe3#
      • 1...Qa6
        • 2.Qe3#
      • 1...Bd2
        • 2.Qb8#
      • 1...Bc3
        • 2.Qb8#
      • 1...Bb4
        • 2.Qe3#
      • 1...Ba5
        • 2.Qe3#
      • 1...Sg3
        • 2.Qb8#
      • 1...Sf5
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(h);P-FLIGHT::QAR1(A)
      • Refutation
        • K(h);P-FLIGHT
  • Actual
    • S(C);
    • Threat
      • DUALS(2)
    • Vars
      • S(g);CHECK,N_GUARD::S(C),XS(g)
      • K(h);S_FLIGHT,XS(C)::B(E)
      • S(g);XP(B)::QAR2(A)
      • Q(b);::QAB(A)
      • Q(b);N_GUARD::S(C),XQ(b)
      • Q(b);::QAR2(A)
      • B(a);::QAB(A)
      • B(a);P_PINB(E)::QAR2(A)
      • B(a);::QAR2(A)
      • S(d);::QAB(A)
      • S(g);N_GUARD::S(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).