MESON Chess Problem Database

Problem Display
PID: 189760 (2B1nr2/4pq2/1K1pP1PR/3k1p2/3p1Pp1/1Pp5/4PN2/n2Qb3 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1912

2B1nr2/4pq2/1K1pP1PR/3k1p2/3p1Pp1/1Pp5/4PN2/n2Qb3

#2

10 + 12

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe6
      • 2.Bb7#
    • 1...Bd2
      • 2.Qh1#
    • 1...Bxf2
      • 2.Qh1#
    • 1...Sxb3
      • 2.Qxb3#
    • 1...d3
      • 2.Qxd3#
  • Tries
    • 1.gxf7?
      • threat
        • 2.Bb7#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...d3
        • 2.Qxd3#
      • 1...Sf6!
  • Keys
    • 1.Rh5!
      • threat
        • 2.e4#
      • 1...Qxe6
        • 2.Bb7#
      • 1...Bxf2
        • 2.Qh1#
      • 1...Sxb3
        • 2.Qxb3#
      • 1...d3
        • 2.Qxd3#
      • 1...Bd2
        • 2.Qh1#
      • 1...Sf6
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(j);SBLOCK,XP(G)::B(J)
    • B(b);N_SPINP(d),OGATE::QAB(A)
    • B(b);OGATE,XS(C)::QAB(A)
    • S(a);OGATE,XP(D)::QAB(A),XS(a)
    • P(d);OGATEB::QAR2(A),XP(d)
  • Tries
    • Try
      • P(H);XQ(j)
      • Threat
        • B(J)
      • Vars
        • S(a);OGATE,XP(D)::QAB(A),XS(a)
        • P(d);OGATEB::QAR2(A),XP(d)
      • Refutation
        • S(k);
  • Actual
    • R(I);
    • Threat
      • P(B)
    • Vars
      • Q(j);SBLOCK,XP(G)::B(J)
      • B(b);OGATE,XS(C)::QAB(A)
      • S(a);OGATE,XP(D)::QAB(A),XS(a)
      • P(d);OGATEB::QAR2(A),XP(d)
      • B(b);N_SPINP(d),OGATE,P_SPINP(g)::QAB(A)
      • S(k);S_CUTQ(j)::R(I),XP(g)
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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).