MESON Chess Problem Database

Problem Display
PID: 206480 (6n1/3RrpQ1/2pn1r2/N2b4/1PNkP1R1/3p4/3P4/3K4 w - - 0 1)

ten Cate, Pieter

Algemeen Handelsblad, 1925

6n1/3RrpQ1/2pn1r2/N2b4/1PNkP1R1/3p4/3P4/3K4

#2

9 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxc4
      • 2.Sxc6#
    • 1...Bxe4
      • 2.Rxd6#
    • 1...Sxc4
      • 2.Sxc6#
    • 1...Sf5
      • 2.e5#
  • Tries
    • 1.Qxf6+?
      • 1...Re5
        • 2.Qxe5#
        • 2.Qf2#
      • 1...Sxf6!
  • Keys
    • 1.Rf4!
      • threat
        • 2.Qg1#
      • 1...Bxc4
        • 2.Sxc6#
      • 1...Bxe4
        • 2.Rxd6#
      • 1...Sxc4
        • 2.Sxc6#
      • 1...Sf5
        • 2.e5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD,P_SPINS(e),SBLOCK,XS(D)::S(G),XP(d)
    • B(c);OGATEB,P_SPINB(c),P_SPINS(e),XP(E)::R(H),XS(e)
    • S(e);P_SPINB(c),SBLOCK,XS(D)::S(G),XP(d)
    • S(e);N_GUARD,P_SPINB(c)::R(F)+P(E)
  • Tries
    • Try
      • Q(I);CHECK,XR(f)
      • Refutation
        • S(i);XQ(I)
  • Actual
    • R(F);
    • Threat
      • QAB(I)
    • Vars
      • B(c);N_GUARD,P_SPINS(e),SBLOCK,XS(D)::S(G),XP(d)
      • B(c);OGATEB,P_SPINB(c),P_SPINS(e),XP(E)::R(H),XS(e)
      • S(e);P_SPINB(c),SBLOCK,XS(D)::S(G),XP(d)
      • S(e);N_GUARD,P_SPINB(c)::R(F)+P(E)
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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).