MESON Chess Problem Database

Problem Display
PID: 63211 (4N3/5B2/1KRNn2r/2ppk3/R1p2pP1/2PPb3/4Q3/8 w - - 0 1)

Waterhouse, T

Chess, 1945

4N3/5B2/1KRNn2r/2ppk3/R1p2pP1/2PPb3/4Q3/8

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...f3
      • 2.Qxe3#
  • Keys
    • 1.Rxc5!
      • threat
        • 2.Sxc4#
      • 1...Sxc5
        • 2.d4#
      • 1...cxd3
        • 2.Re4#
      • 1...f3
        • 2.Qxe3#
      • 1...Sd4
        • 2.Rxd5#
      • 1...Sg5
        • 2.d4#
      • 1...Sc7
        • 2.d4#
      • 1...Sg7
        • 2.d4#
      • 1...Sd8
        • 2.d4#
      • 1...Sf8
        • 2.d4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::QAR2(A),XB(a)
  • Actual
    • R(G);P_PINP(e),P_SPINR(G),XP(d)
    • Threat
      • S(H),XP(b)
    • Vars
      • S(g);N_GUARD,N_SPINP(e),P_PINS(H),XR(G)::P(C)
      • P(b);OGATE,XP(C)::R1(D)
      • P(c);N_GUARD::QAR2(A),XB(a)
      • S(g);N_PINR(G),P_PINS(H)::R1(G),XP(e)
      • S(g);N_GUARD,P_PINS(H)::P(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).