MESON Chess Problem Database

Problem Display
PID: 202541 (1R6/1np1N3/pqN2K2/Pkp2b1R/p7/b1Q5/3P4/7B w - - 0 1)

Funk, Henry E

Brisbane Courier, 1923

1R6/1np1N3/pqN2K2/Pkp2b1R/p7/b1Q5/3P4/7B

#2

9 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa7
      • 2.Sxa7#
    • 1...Qxc6+
      • 2.Bxc6#
    • 1...Bd3
      • 2.Qxd3#
    • 1...Bh3
      • 2.Qd3#
    • 1...Bg4
      • 2.Qd3#
    • 1...Be6
      • 2.Sd4#
    • 1...Bd7
      • 2.Qd3#
    • 1...Bc8
      • 2.Qd3#
    • 1...Sd6
      • 2.Sa7#
  • Tries
    • 1.Bd5?
      • threat
        • 2.Bc4#
        • 2.Qc4#
      • 1...Qxc6+
        • 2.Bxc6#
      • 1...Qxa5
        • 2.Qxa5#
      • 1...Sxa5
        • 2.Qxa5#
      • 1...c4
        • 2.Qxc4#
      • 1...Bb2
        • 2.Bc4#
        • 2.Qxb2#
      • 1...Be6
        • 2.Qc4#
      • 1...Sd6
        • 2.Sa7#
      • 1...Bd3!
  • Keys
    • 1.d3!
      • threat
        • 2.Qc4#
      • 1...Qxc6+
        • 2.Bxc6#
      • 1...Qxa5
        • 2.Qxa5#
      • 1...Bxd3
        • 2.Qxd3#
      • 1...Sxa5
        • 2.Qxa5#
      • 1...c4
        • 2.Qxc4#
      • 1...Bb2
        • 2.Qxb2#
      • 1...Be6
        • 2.Sd4#
      • 1...Sd6
        • 2.Sa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(g);N_PINS(F),P_SPINS(h)::S(F),XQ(g)
    • Q(g);CHECK,OGATE,P_SPINS(h),XS(F)::B(A),XQ(g)
    • B(e);N_GUARD,P_SPINP(d)::QAB(C),XB(e)
    • B(e);N_GUARD,P_SPINP(d)::QAB(C)
    • B(e);N_PINS(F),P_SPINP(d)::S(F)
    • S(h);N_PINS(F),P_SPINQ(g)::S(F)
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • Q(g);CHECK,OGATE,P_SPINS(h),XS(F)::B(A),XQ(g)
        • Q(g);N_PINS(F),OGATE,P_SPINS(h),XP(D)::QAR1(C),XQ(g)
        • S(h);OGATE,P_SPINQ(g),XP(D)::QAR1(C),XS(h)
        • P(d);::QAB1(C),XP(d)
        • B(e);N_PINS(F)::QAB1(C)
        • S(h);N_PINS(F),P_SPINQ(g)::S(F)
      • Refutation
        • B(e);
  • Actual
    • P(B);
    • Threat
      • QAB1(C)
    • Vars
      • Q(g);CHECK,OGATE,P_SPINS(h),XS(F)::B(A),XQ(g)
      • Q(g);N_PINS(F),OGATE,P_SPINS(h),XP(D)::QAR1(C),XQ(g)
      • B(e);OGATE,P_SPINP(d),XP(B)::QAB(C),XB(e)
      • S(h);OGATE,P_SPINQ(g),XP(D)::QAR1(C),XS(h)
      • P(d);P_SPINB(e)::QAB1(C),XP(d)
      • B(a);N_GUARD,P_PINQ(C)::QAR(C),XB(a)
      • B(e);N_PINS(F),P_SPINP(d)::S(F)
      • S(h);N_PINS(F),P_SPINQ(g)::S(F)
HTML5 logo

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).