MESON Chess Problem Database

Problem Display
PID: 43679 (5B2/1b1p4/p1PQ1P2/1q1NK3/PNk5/1p6/1P6/8 w - - 0 1)

Tucker, Frederick G

The Problemist, 1928

5B2/1b1p4/p1PQ1P2/1q1NK3/PNk5/1p6/1P6/8

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa4
      • 2.Qc5#
    • 1...Qxc6
      • 2.Se3#
    • 1...Qxb4
      • 2.Se3#
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qxd5+
      • 2.Qxd5#
    • 1...Qb6
      • 2.Sxb6#
  • Tries
    • 1.Kf4?
      • threat
        • 2.Se3#
      • 1...Qxa4
        • 2.Qc5#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qb6
        • 2.Sxb6#
      • 1...Kd4!
  • Keys
    • 1.Kf5!
      • threat
        • 2.Qf4#
      • 1...Qxd5+
        • 2.Qxd5#
      • 1...Kd4
        • 2.Qf4#
      • 1...Qxa4
        • 2.Qc5#
      • 1...Qxb4
        • 2.Se3#
      • 1...Qc5
        • 2.Qxc5#
      • 1...Qb6
        • 2.Sxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_GUARD,N_PINS(D),XP(B)::QAR1(G)
    • Q(c);N_PINS(D),XP(F)::S(D)
    • Q(c);N_PINS(D),XS(C)::S(D)
    • Q(c);N_GUARD::QAR1(G),XQ(c)
    • Q(c);CHECK,OGATE,XS(D)::QAB1(G),XQ(c)
    • Q(c);N_PINS(D)::S(D),XQ(c)
  • Tries
    • Try
      • K(E);N_SPINS(D),S_FLIGHT
      • Threat
        • S(D)
      • Vars
        • Q(c);N_GUARD,XP(B)::QAR1(G)
        • Q(c);OGATE,XS(D)::QAB1(G),XQ(c)
        • Q(c);N_GUARD::QAR1(G),XQ(c)
        • Q(c);N_GUARD::S(D),XQ(c)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAR(G)
    • Vars
      • Q(c);CHECK,OGATE,XS(D)::QAB1(G),XQ(c)
      • K(b);P-FLIGHT::QAR2(G)
      • Q(c);N_GUARD,N_PINS(D),XP(B)::QAR1(G)
      • Q(c);N_PINS(D),XS(C)::S(D)
      • Q(c);N_GUARD::QAR1(G),XQ(c)
      • Q(c);N_PINS(D)::S(D),XQ(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).