MESON Chess Problem Database

Problem Display
PID: 203652 (8/2p1RNpq/2P2pp1/1BBk1bRN/p4n2/r7/PnQ5/1Kb5 w - - 0 1)

van Dijk, Johannes

Brisbane Courier, 1924

8/2p1RNpq/2P2pp1/1BBk1bRN/p4n2/r7/PnQ5/1Kb5

#2

10 + 12

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Sxf4#
    • 1...Sbd3
      • 2.Qc4#
    • 1...Se6
      • 2.Rd7#
    • 1...fxg5
      • 2.Re5#
  • Tries
    • 1.Bb6?
      • threat
        • 2.Qe4#
      • 1...fxg5
        • 2.Re5#
      • 1...Rd3
        • 2.Qc5#
      • 1...Re3
        • 2.Sxf4#
      • 1...Sbd3
        • 2.Qc4#
      • 1...Sfd3
        • 2.Qg2#
      • 1...Se6
        • 2.Rd7#
      • 1...cxb6!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Qe4#
      • 1...fxg5
        • 2.Re5#
      • 1...Rd3
        • 2.Qc5#
      • 1...Re3
        • 2.Sxf4#
      • 1...Sbd3
        • 2.Qc4#
      • 1...Sfd3
        • 2.Qg2#
      • 1...Se6
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(c);S_CUTB(a)::S(G),XS(e)
    • S(b);N_PINQ(C)::QAB1(C)
    • S(e);SBLOCK::R(I)
    • P(h);N_GUARD,N_SPINB(g),XR(F)::R1(I)
  • Tries
    • Try
      • B(E);
      • Threat
        • QAB1(C)
      • Vars
        • P(h);N_GUARD,N_SPINB(g),XR(F)::R1(I)
        • R(c);N_PINQ(C)::QAR1(C)
        • R(c);S_CUTB(a)::S(G),XS(e)
        • S(b);N_PINQ(C)::QAB1(C)
        • S(e);N_PINQ(C)::QAB(C)
        • S(e);SBLOCK::R(I)
      • Refutation
        • P(j);XB(E)
  • Actual
    • B(E);
    • Threat
      • QAB1(C)
    • Vars
      • P(h);N_GUARD,N_SPINB(g),XR(F)::R1(I)
      • R(c);N_PINQ(C)::QAR1(C)
      • R(c);S_CUTB(a)::S(G),XS(e)
      • S(b);N_PINQ(C)::QAB1(C)
      • S(e);N_PINQ(C)::QAB(C)
      • S(e);SBLOCK::R(I)
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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).