MESON Chess Problem Database

Problem Display
PID: 144163 (2b5/5N1K/1p6/1RN2kP1/8/2p1PP2/p1q1p3/r1n1B3 w - - 0 1)

Challenger, Alfred Clement

Morning Post, 1896

2b5/5N1K/1p6/1RN2kP1/8/2p1PP2/p1q1p3/r1n1B3

#2

8 + 9

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Sd6+?
      • 1...Kxg5+
        • 2.Sce4#
      • 1...Ke5+!
    • 1.Sh6+?
      • 1...Kxg5+
        • 2.Se4#
      • 1...Ke5+!
  • Keys
    • 1.Sd8!
      • threat
        • 2.Sb3#
        • 2.Sd3#
        • 2.Sa4#
        • 2.Se4#
        • 2.Sa6#
        • 2.Sce6#
        • 2.Scb7#
        • 2.Sd7#
      • 1...Ke5+
        • 2.Se4#
      • 1...Kxg5+
        • 2.Se4#
      • 1...bxc5
        • 2.Rxc5#
      • 1...Qb1
        • 2.Sb3#
      • 1...Qd1
        • 2.Sd3#
      • 1...Qb3
        • 2.Sxb3#
      • 1...Qd3
        • 2.Sxd3#
      • 1...Qa4
        • 2.Sxa4#
      • 1...Qe4
        • 2.Sxe4#
      • 1...Qb2
        • 2.Sb3#
      • 1...Qd2
        • 2.Sd3#
      • 1...Rb1
        • 2.Sb3#
      • 1...Ba6
        • 2.Sxa6#
      • 1...Be6
        • 2.Scxe6#
      • 1...Bb7
        • 2.Scxb7#
      • 1...Bd7
        • 2.Sxd7#
      • 1...Sb3
        • 2.Sxb3#
      • 1...Sd3
        • 2.Sxd3#

There are these versions: 2169

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 18
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(g);CHECK,P-FLIGHT,XP(F)::R(D)+S(E),DCHECK
      • Refutation
        • K(g);CHECK,P-FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(g);CHECK,P-FLIGHT,XP(F)::R(D)+S(E),DCHECK
      • Refutation
        • K(g);CHECK,P-FLIGHT
  • Actual
    • S(G);
    • Threat
      • DUALS(8)
    • Vars
      • K(g);CHECK,P-FLIGHT::R(D)+S(E)
      • K(g);CHECK,P-FLIGHT,XP(F)::R(D)+S(E),DCHECK
      • P(h);OGATE,P_SPINP(h),XS(E)::R(D),XP(h)
      • Q(d);::R(D)+S(E)
      • Q(d);::R(D)+S(E),XQ(d)
      • R(a);::R(D)+S(E)
      • B(i);::R(D)+S(E),XB(i)
      • S(b);::R(D)+S(E),XS(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).