MESON Chess Problem Database

Problem Display
PID: 203406 (3R4/K7/1N6/2p4b/P2bR3/2rkp1N1/1Q1n4/8 w - - 0 1)

Oosterholt, Cornelis Johannes

Algemeen Handelsblad, 1924

3R4/K7/1N6/2p4b/P2bR3/2rkp1N1/1Q1n4/8

#2

7 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qe2#
    • 1...c4
      • 2.Rexd4#
      • 2.Rdxd4#
  • Keys
    • 1.Sd7!
      • threat
        • 2.Se5#
      • 1...c4+
        • 2.Sc5#
      • 1...Kc4
        • 2.Se5#
      • 1...Be5
        • 2.Sxc5#
        • 2.Sxe5#
      • 1...Sf3
        • 2.Qe2#
      • 1...Sc4
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::QAB1(A)
  • Actual
    • S(E);N_PINB(e)
    • Threat
      • S(E)
    • Vars
      • P(f);CHECK,SBLOCK,S_CUTR(b)::S(E)
      • K(c);P_SPINB(e),S_FLIGHT::S(E)
      • S(a);OGATE::QAB1(A)
      • S(a);SBLOCK,S_CUTR(b)::S(E),XP(f)
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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).