MESON Chess Problem Database

Problem Display
PID: 198677 (1N6/8/1pP2rP1/1k3B2/pPp1N3/P4Q2/4nK2/8 w - - 0 1)

ten Cate, Pieter

Western Morning News, 1921

(First published on Sat Jul 16 1921)

1N6/8/1pP2rP1/1k3B2/pPp1N3/P4Q2/4nK2/8

#2

9 + 6

6490 yacpdb 2019
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5
      • 2.Sd6#
      • 2.Qxf5#
    • 1...Rd6
      • 2.Sxd6#
    • 1...Rf7
      • 2.Sd6#
    • 1...Rf8
      • 2.Sd6#
    • 1...Sc1
      • 2.Sc3#
    • 1...Sg1
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sg3
      • 2.Sc3#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sf4
      • 2.Sc3#
    • 1...c3
      • 2.Qxe2#
      • 2.Qd3#
  • Tries
    • 1.Kxe2?
      • threat
        • 2.Sc3#
      • 1...c3
        • 2.Qd3#
      • 1...Re6!
  • Keys
    • 1.Qh5!
      • 1...Rxf5+
        • 2.Qxf5#
      • 1...Rxc6
        • 2.Bd7#
      • 1...Rxg6
        • 2.Bxg6#
      • 1...c3
        • 2.Qxe2#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Re6
        • 2.Bxe6#
      • 1...Rf7
        • 2.Sd6#
      • 1...Rf8
        • 2.Sd6#
      • 1...Sc1
        • 2.Sc3#
      • 1...Sg1
        • 2.Sc3#
      • 1...Sg3
        • 2.Sc3#
      • 1...Sd4
        • 2.Sc3#
      • 1...Sf4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • R(f);N_GUARD::S(E),XR(f)
    • R(f);N_GUARD::S(E)
    • S(a);N_GUARD::S(E)
    • S(a);N_GUARD::S(E),XS(a)
  • Tries
    • Try
      • K(A);P-FLIGHT,XS(a)
      • Threat
        • S(E)
      • Vars
        • P(c);OGATEB::QAB(C)
      • Refutation
        • R(f);P_PINS(E)
  • Actual
    • Q(C);P_SPINB(F)
    • Vars
      • R(f);CHECK,OGATE,P_SPINR(f),XB(F)::QAR(C),XR(f)
      • R(f);N_PINB(F),XP(G)::QAR(C)+B(F)
      • R(f);N_PINB(F),XP(H)::QAR(C)+B(F),XR(f)
      • P(c);OGATEB::QAB(C),XS(a)
      • S(a);N_GUARD::S(E),XS(a)
      • R(f);N_GUARD,N_PINB(F)::S(E),XR(f)
      • R(f);N_PINB(F)::QAR(C)+B(F),XR(f)
      • R(f);N_GUARD::S(E)
      • S(a);N_GUARD::S(E)
      • S(a);N_GUARD,N_PINB(F)::S(E)
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).